- First seen
- Last seen
THREAT SIGNALMedium-high
Read alongside the verdict
Actor / APT signals unc5174 · 30% confidence View context
Possible actor associations to support your investigation.
- unc5174
- 30% signal confidence
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
413838c27cee5bd734bf39823a4cf923f49d348cdfe46caa2fd1b0bc859916cb- SHA1
cd196364985da0c35c359d5481190596b97ecd82- MD5
8e306e6c8549c7cb4274c073d5e4aac4- Filename
- linux_amd64
- File type
- elf
- MIME
- application/x-elf
- File size
- 9800
- Actor context
- unc5174 · 30%
- Filename variants
- 3 reported
- TLSH
T139122F47A2D0CE3FC8D953384467122472B794BEDF629723064815B63F427E81E6EB8B
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 16. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 48%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections48%
VirusSign confidence100%
Relationship context16 visible
Threat classificationvshell
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Graph filters
Saved investigations
Compare when indicators were first seen, last seen and observed. Switch to Lifecycle to connect events for the same IOC.
Review approximate infrastructure locations and geographic concentration.
Commonalities
RELATIONSHIP CONSTELLATION
No observations in this view
Available evidence appears in the other investigation lenses.
SELECT A NODE TO EXPLORE
FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Dropped / child files
Files dropped, bundled, or created by the queried file.
5shown
52%
high
elf
7864320 bytes
drops
Filename
memfd_a (deleted)
Family
vshell
Type
trojan
File type
elf
MIME
application/x-elf
241 bytes
contains
Filename
.shstrtab
MIME
application/octet-stream
Size
241
SHA1
5c542046e2fa8fda89433cbeb924678bed86b5b0
First seen
2026-04-28T01:00:56Z
0%
emf
464 bytes
contains
Filename
.dynamic
File type
emf
MIME
application/octet-stream
Size
464
SHA1
f16f567b948ea6e58c17ec3194b5d06ed897670c
0%
text
32 bytes
contains
Filename
_4
File type
text
MIME
text/plain
Size
32
SHA1
447eeb9da047efc5f7eb3192776c9ea489e36e07
0%
text
9 bytes
contains
Filename
.fini_14
File type
text
MIME
text/plain
Size
9
SHA1
fa7de3c1bbc31c0cfd7a16048b53b1bce8d2c590
Related IPs
Network IPs associated with this indicator.
5shown
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2026-04-03T21:05:29Z
Last seen
2026-11-11T19:38:49Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2025-12-06T11:03:28Z
Last seen
2026-11-11T17:11:59Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2025-12-06T11:03:28Z
Last seen
2026-11-11T17:11:59Z
0%
IE
communicates
CIDR
54.154.0.0/15
Network
54.144.0.0-54.221.255.255
First seen
2024-03-08T09:59:37Z
Last seen
2026-11-11T17:52:43Z
0%
IE
communicates
CIDR
34.240.0.0/12
Network
34.248.0.0-34.255.255.255
First seen
2026-02-18T01:39:29Z
Last seen
2026-11-11T17:52:43Z
Related domains
Domains associated with this indicator.
5shown
0%
.com
communicates
Root
ubuntu.com
TLD
com
First seen
2023-09-29T00:41:59Z
Last seen
2026-11-11T20:15:11Z
0%
.com
communicates
Root
ubuntu.com
TLD
com
Subdomain
connectivity-check
First seen
2023-09-29T10:05:48Z
Last seen
2026-11-11T20:19:07Z
0%
.com
communicates
Root
ubuntu.com
TLD
com
Subdomain
motd
First seen
2023-10-01T01:10:27Z
Last seen
2026-11-11T20:03:46Z
0%
.io
communicates
Root
snapcraft.io
TLD
io
Subdomain
dashboard
First seen
2023-09-28T20:06:06Z
Last seen
2026-11-11T19:51:44Z
0%
.io
communicates
Root
snapcraft.io
TLD
io
Subdomain
api
First seen
2023-10-01T01:10:27Z
Last seen
2026-11-11T20:18:13Z
Related URLs
URLs associated with this indicator.
1shown
0%
communicates
TLD
com
HTTP status
204
Content SHA256
212a2d2e355cec068c4c4f041281aa42b663d3defcb647b11974f362712159fc
First seen
2017-12-01T13:12:17Z
Last seen
2026-11-11T17:22:20Z
Analysis details
Severity: highactor:unc5174trojan64bitelfdebug-checkloaderactorunc5174linuxapt-relateddownloader
Freshness: Fresh · Last seen 3 days ago.
- Detection rate
- 48%
- Threat type
- trojan
- Family
- vshell
- Confidence
- 100%
- detection
- 48 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
413838c27cee5bd734bf39823a4cf923f49d348cdfe46caa2fd1b0bc859916cb- SHA1
cd196364985da0c35c359d5481190596b97ecd82- MD5
8e306e6c8549c7cb4274c073d5e4aac4- Filename
- linux_amd64
- File type
- elf
- MIME
- application/x-elf
- File size
- 9800
- TLSH
T139122F47A2D0CE3FC8D953384467122472B794BEDF629723064815B63F427E81E6EB8B- SSDEEP
96:GqTVJWWGXzS61H5ML09V1J9G8Ym7+hrsrwegVekrf7mxaamBFBp8sBRnsH5vZAC:GqnWWHuZMWT1YmqhrsnurfjTr8sbnsl- First seen
- 2026-11-07T18:51:38Z
- Last seen
- 2026-11-08T03:30:19Z
- Actor context
- unc5174 · 30%
- Filename variants
- 3 reported
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
Elevated engine detections. Related indicators in this report: 16. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 48%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Actor context
Possible actor context is present for unc5174, but confidence is low.
Threat context
Classification includes type trojan and family vshell.
Relationship context
16 related indicators are shown across 4 relationship group(s). Additional relationship intelligence is available through API and data access.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
Engine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
Reported engine detection rate, not the probability that this indicator is malicious.
VirusSign analysis confidence; separate from detection rate and actor-association confidence.
4 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family vshell.
Low confidence. Possible association for investigation.
Last seen 3 days ago.
Signals reflect the intelligence returned in this report. Missing values mean not reported, not zero. Related indicators are investigation leads, not proof of shared malicious activity.
File profile
summarySelected file intelligence summary.
- Filename
- linux_amd64
- File type
- elf
- MIME
- application/x-elf
- Size
- 9800
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- Classification label
- Connects to IPs without corresponding DNS lookups
- Contains symbols related to standard C library sleeps (sometimes used to evade sandboxing)
- Creates hidden files and/or directories
- Drops files onto disk
5 shown
View MITRE ATT&CK details · 5 shown
- T1497 — Contains symbols related to standard C library sleeps (sometimes used to evade sandboxing)Tactics: TA0005 · TA0007
- T1564.001 — Creates hidden files, links and/or directoriesTactics: TA0005
- T1071 — Detected HTTP requests to some non white-listed domainsTactics: TA0011
- T1070 — Network activity detected but not expressed in API logsTactics: TA0005
- T1071 · T1573 — Uses HTTPSTactics: TA0011
5 shown
View MBC details · 5 shown
- CommunicationObjectives: OC0006
- E1027.m02 — Encoding-Standard AlgorithmObjectives: OB0002 · OB0006
- C0002 — HTTP CommunicationObjectives: OC0006
- B0030.002 · C0001.006 — Receive DataObjectives: OB0004 · OC0006
- C0011.001 — ResolveObjectives: OC0006
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity5+
TCP, HTTPports 443, 80
- 5+ outbound connections observed
- 1 domains, 5+ IPs, 1 URLs
- Common ports: 443, 80
- Protocols: TCP, HTTP
View details · 5 shown
- IP
- 106.75.7.239
- Port
- 443
- Protocol
- TCP
- IP
- 185.125.188.61
- Port
- 443
- Protocol
- TCP
- Domain
- connectivity-check.ubuntu.com
- URL
- http://connectivity-check.ubuntu.com/
- Protocol
- HTTP
- IP
- 91.189.91.58
- Port
- 80
- Protocol
- TCP
- IP
- 54.154.251.197
- Port
- 443
- Protocol
- TCP
5 shown
DNS request activity4
A5+ response IPs
- 4 DNS requests observed
- 4 unique queries
- 5+ response IPs
- Query types: A
- Response codes: NOERROR
View details · 4 shown
- Query
- motd.ubuntu.com
- Type
- A
- Answers
- 34.244.58.147, 54.154.251.197, 34.245.102.249, 34.253.181.30, 3.254.173.149
- Response
- NOERROR
- Query
- dashboard.snapcraft.io
- Type
- A
- Answers
- 185.125.188.61, 185.125.188.62
- Response
- NOERROR
- Query
- connectivity-check.ubuntu.com
- Type
- A
- Answers
- 91.189.91.57, 185.125.190.99, 91.189.91.58, 91.189.91.97, 185.125.190.100, 91.189.91.96, 91.189.91.62, 91.189.91.61 …
- Response
- NOERROR
- Query
- api.snapcraft.io
- Type
- A
- Answers
- 185.125.188.57, 185.125.188.60, 185.125.188.59, 185.125.188.58, 185.125.188.55, 185.125.188.54
- Response
- NOERROR
C2 candidates1
TCPports 443
- 1 C2 candidate communications
- 0 domains, 1 IPs
- Common ports: 443
- Protocols: TCP
View details · 1 shown
- IP
- 106.75.7.239
- Port
- 443
- Protocol
- TCP