- First seen
- Last seen
THREAT SIGNALHigh
Read alongside the verdict
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
b337aaafaed06f1977d0ae6e6aef4043ba01a975af1c44d953f8a4977e5818de- SHA1
87cca83c10a70142aec4d25cda1d6fecc74f509d- MD5
940025eeb494915f6a8797ad07d11519- Filename
- b337aaaf_no1ljnrgb.exe.bin
- File type
- elf
- MIME
- application/x-elf
- File size
- 7262
- TLSH
T1BCE16207E2D5CD72D8CD133846931749213AC86EAB83AF03650C19A9EE43BDC7A63752- SSDEEP
192:fsuqD7vccFG146jwz7cSym4S2ofahbpZiQ:fsue7c1JcFym4Sw/
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 15. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 62%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections62%
VirusSign confidence100%
Relationship context15 visible
Threat classificationgafgyt
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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
33%
high
elf
7581696 bytes
drops
Filename
11526943_memfd_a (deleted).bin
Family
vshell
Type
trojan
File type
elf
MIME
application/x-elf
239 bytes
contains
Filename
e6f0aeb8_.shstrtab.bin
MIME
application/octet-stream
Size
239
SHA1
45b3be64b8a51d369590527e7607e10c057aaffb
First seen
2026-04-28T01:00:56Z
0%
32 bytes
contains
Filename
4aee9368_virusshare_2bfc02106293099b6e36e91a65c62a91.bin
MIME
application/octet-stream
Size
32
SHA1
c2ca7d2977ad97203dbe637a2381b95ec92ee2c6
First seen
2018-03-16T06:47:15Z
0%
text
19 bytes
contains
Filename
b9c8c60f_.inter0.bin
File type
text
MIME
text/plain
Size
19
SHA1
1ab177049f14482a43fc24babe5826e81efb51e8
0%
8 bytes
contains
Filename
af5570f5_.data.dotnetruntimerundownname.bin
MIME
application/octet-stream
Size
8
SHA1
05fe405753166f125559e7c9ac558654f107c7e9
First seen
2009-02-15T21:51:13Z
Related IPs
Network IPs associated with this indicator.
5shown
11%
medium
US
communicates
CIDR
38.46.12.0/22
Network
38.0.0.0-38.255.255.255
First seen
2023-12-16T17:51:22Z
Last seen
2026-11-14T23:50:40Z
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
2026-11-15T10:31:40Z
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
2026-11-15T10:54:24Z
5%
low
IE
communicates
CIDR
34.240.0.0/12
Network
34.240.0.0-34.247.255.255
First seen
2026-02-17T08:19:18Z
Last seen
2026-11-15T10:31:40Z
0%
IE
communicates
CIDR
34.240.0.0/12
Network
34.240.0.0-34.247.255.255
First seen
2026-02-17T08:19:18Z
Last seen
2026-11-15T10:31:40Z
Related domains
Domains associated with this indicator.
3shown
0%
.com
communicates
Root
ubuntu.com
TLD
com
Subdomain
motd
First seen
2023-10-01T01:10:27Z
Last seen
2026-11-15T10:31:41Z
0%
.io
communicates
Root
snapcraft.io
TLD
io
Subdomain
dashboard
First seen
2023-09-28T20:06:06Z
Last seen
2026-11-15T05:14:33Z
0%
.io
communicates
Root
snapcraft.io
TLD
io
Subdomain
api
First seen
2023-10-01T01:10:27Z
Last seen
2026-11-15T10:54:41Z
Related URLs
URLs associated with this indicator.
2shown
10%
medium
communicates
HTTP status
200
Content length
7581696
Content SHA256
3b518cf0bffc67ba97d5980fc4035ac494797cca5983260aa376275c42a0e8cb
First seen
2026-11-08T01:53:18Z
Last seen
2026-11-08T08:31:01Z
10%
medium
communicates
HTTP status
200
Content length
637
Content SHA256
af44db26be11baa7878941cc1d95ccf043170236d6610ad24828affb44c873a6
First seen
2026-09-09T18:47:04Z
Last seen
2026-11-14T23:50:41Z
Analysis details
Severity: hightrojanmalwaredebug-checkelf
Freshness: Fresh · Last seen today.
- Detection rate
- 62%
- Threat type
- trojan
- Family
- gafgyt
- Confidence
- 100%
- detection
- 62 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
b337aaafaed06f1977d0ae6e6aef4043ba01a975af1c44d953f8a4977e5818de- SHA1
87cca83c10a70142aec4d25cda1d6fecc74f509d- MD5
940025eeb494915f6a8797ad07d11519- Filename
- b337aaaf_no1ljnrgb.exe.bin
- File type
- elf
- MIME
- application/x-elf
- File size
- 7262
- TLSH
T1BCE16207E2D5CD72D8CD133846931749213AC86EAB83AF03650C19A9EE43BDC7A63752- SSDEEP
192:fsuqD7vccFG146jwz7cSym4S2ofahbpZiQ:fsue7c1JcFym4Sw/- First seen
- 2026-11-08T00:23:14Z
- Last seen
- 2026-11-14T16:50:08Z
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: 15. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 62%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family gafgyt.
Relationship context
15 related indicators are shown across 4 relationship group(s). Additional relationship intelligence is available through API and data access.
Observation timeline
16 timestamped observations are arranged from 2009-02-15 to 2026-11-08. These are observation or metadata times, not execution order.
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 gafgyt.
Last seen today.
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
- b337aaaf_no1ljnrgb.exe.bin
- File type
- elf
- MIME
- application/x-elf
- Size
- 7262
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
- T1071 · T1095 · T1105 — Downloads files from webservers via HTTPTactics: TA0011
- T1064 — Executes commands using a shell command-line interpreterTactics: TA0002 · TA0005
5 shown
View MBC details · 5 shown
- CommunicationObjectives: OC0006
- C0001.004 — Connect SocketObjectives: OC0006
- C0001.011 — Create TCP SocketObjectives: OC0006
- E1027.m02 — Encoding-Standard AlgorithmObjectives: OB0002 · OB0006
- C0002 — HTTP CommunicationObjectives: 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, 4141
- 5+ outbound connections observed
- 1 domains, 5+ IPs, 2 URLs
- Common ports: 443, 4141
- Protocols: TCP, HTTP
View details · 5 shown
- Domain
- 38.46.15.202
- URL
- http://38.46.15.202:4141/?a=l32&h=38.46.15.202&t=ws_&p=4141
- Protocol
- HTTP
- Domain
- 38.46.15.202
- URL
- http://38.46.15.202:4141/
- Protocol
- HTTP
- IP
- 38.46.15.202
- Port
- 4141
- IP
- 38.46.15.202
- Port
- 4141
- Protocol
- TCP
- IP
- 185.125.188.61
- Port
- 443
- Protocol
- TCP
5 shown
DNS request activity3
A5+ response IPs
- 3 DNS requests observed
- 3 unique queries
- 5+ response IPs
- Query types: A
- Response codes: NOERROR
View details · 3 shown
- Query
- motd.ubuntu.com
- Type
- A
- Answers
- 54.154.251.197, 34.245.102.249, 34.253.181.30, 3.254.173.149, 34.244.58.147
- Response
- NOERROR
- Query
- dashboard.snapcraft.io
- Type
- A
- Answers
- 185.125.188.62, 185.125.188.61
- Response
- NOERROR
- Query
- api.snapcraft.io
- Type
- A
- Answers
- 185.125.188.59, 185.125.188.58, 185.125.188.54, 185.125.188.57, 185.125.188.60, 185.125.188.55
- Response
- NOERROR
C2 candidates2
HTTP, TCPports 4141
- 2 C2 candidate communications
- 1 domains, 1 IPs
- Common ports: 4141
- Protocols: HTTP, TCP
View details · 2 shown
- IP
- 38.46.15.202
- Port
- 4141
- Protocol
- TCP
- Domain
- 38.46.15.202
- Protocol
- HTTP