MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4
SHA3-384 hash: 7004d57a8286f424b69934f9f0e861a85abe00cb12d793047995731570c4156171785140d69fadfff3b542078c827716
SHA1 hash: 2d2fc822100411e697fdf528614b580fde55da2d
MD5 hash: 4cfeb5ee28694725bde3b096641eb8d0
humanhash: summer-comet-cup-september
File name:sh4
Download: download sample
Signature Gafgyt
Create hunting rule
File size:50'986 bytes
First seen:2025-10-29 06:08:05 UTC
Last seen:2025-10-29 09:36:48 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:F8CfHJIxKeKz7ztaXoU0GQR86SZdf+G2KCUI2ZhF/EkghEj:FNvJI3Kz7zAYU0n8uGfCUjZvRbj
TLSH T13033FA43A9A69F77C086AEB526B30A740753F8154F1B0B8A712DBDF4474B9CCBD1A360
telfhash t1d801cba651b3851c0e7298304cfc4af92d26b62327817f70af0ac4a48937002e23be4b
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 :
2
# of downloads :
160
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Malware.Mirai-9885121-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-29T01:35:00Z UTC
Last seen:
2025-10-29T05:37:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1a17f163-7bf4-49ee-93f0-d8226b1b0676
Behavior Graph:
Download SVG
%3 guuid=70ea0f97-1900-0000-c10a-ff3545090000 pid=2373 /usr/bin/sudo guuid=1336be99-1900-0000-c10a-ff354c090000 pid=2380 /tmp/sample.bin guuid=70ea0f97-1900-0000-c10a-ff3545090000 pid=2373->guuid=1336be99-1900-0000-c10a-ff354c090000 pid=2380 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8d142d6a-c11e-47f4-bcae-85fabd0e3eff
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1803685
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1803685 Sample: sh4.elf Startdate: 29/10/2025 Architecture: LINUX Score: 76 31 193.111.78.190, 43004, 43006, 43008 AS209737TR Finland 2->31 33 169.254.169.254, 80 USDOSUS Reserved 2->33 35 5 other IPs or domains 2->35 37 Suricata IDS alerts for network traffic 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 2 other signatures 2->43 9 sh4.elf 2->9         started        11 python3.8 dpkg 2->11         started        13 dash rm 2->13         started        15 10 other processes 2->15 signatures3 process4 process5 17 sh4.elf 9->17         started        19 sh4.elf 9->19         started        process6 21 sh4.elf sh 17->21         started        process7 23 sh sh 21->23         started        25 sh wget 21->25         started        27 sh chmod 21->27         started        29 sh rm 21->29         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-10-29 00:07:46 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=riytliyqsgu5gf73wu3o3fbrbqyhxg2jh5evjfj5vrj5b7ta5gsa._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251029-gwns5aes2h/
Verdict:
Unknown
Tags:
trojan gafgyt
YARA:
Linux_Trojan_Gafgyt_751acb94
Link:
https://app.threat.zone/submission/67cac2b2-5b83-484c-a363-cde9fd985795
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4

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_Trojan_Gafgyt_751acb94
Create hunting rule
Author:Elastic Security
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 8a3135a31091a9d317fbb536ed94310c307b9b493f4954953dac53d0fe60e9a4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3688726/
  
Delivery method
Distributed via web download

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