MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Gafgyt


Vendor detections: 12


Intelligence 12 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd
SHA3-384 hash: ce13d82d8883a4690b77ef548d3a6bc1a4c0a92eff20c925956bc8d09ad183da941208319ccef5a5769cfc22fbba0ddf
SHA1 hash: d4929cab5f44a8411555e8612951ea8a4ded644d
MD5 hash: d06b702c8d72aedbabb53fb9585ea3f7
humanhash: cola-december-ten-carpet
File name:tftp
Download: download sample
Signature Gafgyt
Create hunting rule
File size:224'910 bytes
First seen:2025-05-18 22:23:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:xr0A2DU9t1/sC2Xra2e6muvNWEcac0SnimsJ2bzVThKGl8xmyyQ2ICXyCk:xrX2ba+m8csSnimsJ2bTimyyQ2IkyCk
TLSH T15E244C07D5944B2FD1D227BAE6AF924E73231FA8979733129528B9B02FE178C1E3D111
telfhash t1a4b02bc0c33109508eb024212402071790034363e0292d01aab50000090801ff2c9e1f
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf gafgyt

Intelligence

File Origin
# of uploads :
1
# of downloads :
122
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Gafgyt-6981154-0
Create hunting rule

Unix.Dropper.Mirai-7135968-0
Create hunting rule

Unix.Dropper.Mirai-7138857-0
Create hunting rule

Unix.Dropper.Mirai-7139051-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Dropper.Mirai-7139232-0
Create hunting rule

Unix.Dropper.Mirai-7489238-0
Create hunting rule

Unix.Trojan.Mirai-7582945-0
Create hunting rule

Unix.Trojan.Gafgyt-7643791-0
Create hunting rule

Unix.Malware.Ladvix-9790819-0
Create hunting rule

Unix.Trojan.Gafgyt-9876192-0
Create hunting rule

Unix.Trojan.Mirai-9917488-0
Create hunting rule

Unix.Trojan.Mirai-5607483-0
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682a6054e5aa44ec2e1aae57linux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Sets a written file as executable
Creates or modifies files in /cron to set up autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
gcc lolbin remote
Link:
https://www.filescan.io/uploads/682a5e1f1de1514c687407cf/reports/98052b28-133e-445d-96c9-a741c9410a8d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
10
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd
Behaviour
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/258f86f8-bfda-4318-9aac-ed06a44c0d4c
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1693593
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Sample deletes itself
Sample tries to persist itself using cron
Sample tries to set files in /etc globally writable
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1693593 Sample: tftp.elf Startdate: 19/05/2025 Architecture: LINUX Score: 100 30 92.112.125.58, 37114, 37116, 37118 UKRTELNETUA Ukraine 2->30 32 109.202.202.202, 80 INIT7CH Switzerland 2->32 34 3 other IPs or domains 2->34 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for dropped file 2->42 44 3 other signatures 2->44 9 tftp.elf 2->9         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 file5 24 /usr/bin/ls, ELF 9->24 dropped 26 /tmp/filezCL7Wm, ELF 9->26 dropped 28 /etc/cron.hourly/0, POSIX 9->28 dropped 46 Sample tries to set files in /etc globally writable 9->46 48 Drops files in suspicious directories 9->48 50 Sample deletes itself 9->50 52 Sample tries to persist itself using cron 9->52 17 tftp.elf filezCL7Wm 9->17         started        signatures6 process7 signatures8 36 Opens /proc/net/* files useful for finding connected devices and routers 17->36 20 filezCL7Wm 17->20         started        process9 process10 22 filezCL7Wm 20->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd/
Threat name:
Linux.Trojan.SAgnt
Create hunting rule
Status:
Malicious
First seen:
2025-05-18 22:24:29 UTC
File Type:
ELF64 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nkazr6qftyiswaxfxl232xctfi3tieuz2dgr2uv5hn2g5nvfkd6q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/250518-2a17jszls8/
Behaviour
Reads runtime system information
Writes file to tmp directory
Creates/modifies Cron job
Write file to user bin folder
Writes file to system bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Gafgyt-6981154-0
YARA:
Linux_Trojan_Gafgyt_6a510422 Linux_Trojan_Gafgyt_d2953f92 Linux_Trojan_Ladvix_c9888edb
Link:
https://app.threat.zone/submission/25ce1132-d532-4271-8dea-81c9663c37f3
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.70
Link:
https://yomi.yoroi.company/submissions/6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Linux_Gafgyt_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_6a510422
Create hunting rule
Author:Elastic Security
Reference:14cc92b99daa0c91aa09d9a7996ee5549a5cacd7be733960b2cf3681a7c2b628
Rule name:Linux_Trojan_Gafgyt_d2953f92
Create hunting rule
Author:Elastic Security
Reference:14cc92b99daa0c91aa09d9a7996ee5549a5cacd7be733960b2cf3681a7c2b628
Rule name:Linux_Trojan_Ladvix_c9888edb
Create hunting rule
Author:Elastic Security
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Gafgyt

elf 6a8198fa059e112b02e5baf5bd5c532a37341299d0cd1d52bd3b746eb6a550fd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3546758/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments