- 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
a74aa4eda145ea8e12bd2c6121fe8cc204eb2d41ce34a2829f288c65f8531ee3- SHA1
432c2a260522f7a692d5a3b4425dd87bb30a64f3- MD5
169aafa4afe700c4e4335f3c590290ee- Filename
- linux_amd64
- File type
- elf
- MIME
- application/x-elf
- File size
- 9800
- Actor context
- unc5174 · 30%
- TLSH
T111123F47A2D0CE3FC8D953384467122472B794BEDF629713064925B63F427E81E6EB8B- SSDEEP
96:GqTVJWWGXzS6AH5ML09V1J9G8Ym6Y+hrsrwegVekrf7mxaamBFBp8sBRnsH5vZAC:GqnWWHLZMWT1YmehrsnurfjTr8sbnsl
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 9. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 45%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections45%
VirusSign confidence100%
Relationship context9 visible
Threat classificationvshell
Expand a connection to run an additional public query. This page allows up to 3 expansions; each counts toward your query limit.
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
29%
high
elf
7678404 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.
4shown
11%
medium
CN
communicates
CIDR
82.156.0.0/15
Network
82.156.0.0-82.157.255.255
First seen
2026-04-02T11:15:29Z
Last seen
2026-11-08T23:01:49Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-10-01T07:36:54Z
Last seen
2026-11-10T18:34:16Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-09-30T18:03:12Z
Last seen
2026-11-10T18:34:16Z
Analysis details
Severity: highactor:unc5174trojan64bitelfdebug-checkdiscoveryunc5174loaderlinuxactorapt-related
Freshness: Fresh · Last seen 2 days ago.
- Detection rate
- 45%
- Threat type
- trojan
- Family
- vshell
- Confidence
- 100%
- detection
- 45 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
a74aa4eda145ea8e12bd2c6121fe8cc204eb2d41ce34a2829f288c65f8531ee3- SHA1
432c2a260522f7a692d5a3b4425dd87bb30a64f3- MD5
169aafa4afe700c4e4335f3c590290ee- Filename
- linux_amd64
- File type
- elf
- MIME
- application/x-elf
- File size
- 9800
- TLSH
T111123F47A2D0CE3FC8D953384467122472B794BEDF629713064925B63F427E81E6EB8B- SSDEEP
96:GqTVJWWGXzS6AH5ML09V1J9G8Ym6Y+hrsrwegVekrf7mxaamBFBp8sBRnsH5vZAC:GqnWWHLZMWT1YmehrsnurfjTr8sbnsl- First seen
- 2026-11-07T16:53:20Z
- Last seen
- 2026-11-08T14:03:52Z
- Actor context
- unc5174 · 30%
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: 9. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 45%.
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
9 related indicators are shown across 2 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.
2 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family vshell.
Low confidence. Possible association for investigation.
Last seen 2 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
- All HTTP servers contacted by the sample do not answer. The sample is likely an old dropper which does no longer work.
- 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
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
- T1571 — Detected TCP or UDP traffic on non-standard portsTactics: TA0011
- T1518.001 — Uses the "uname" system call to query kernel version information (possible evasion)Tactics: TA0007
- T1105 — download and write a fileTactics: 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 activity4
TCPports 443, 8443
- 4 outbound connections observed
- 0 domains, 4 IPs, 0 URLs
- Common ports: 443, 8443
- Protocols: TCP
View details · 4 shown
- IP
- 82.156.117.56
- Port
- 8443
- Protocol
- TCP
- IP
- 185.125.188.59
- Port
- 443
- Protocol
- TCP
- IP
- 185.125.188.55
- Port
- 443
- Protocol
- TCP
- IP
- 169.254.169.254