MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249. 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: b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249
SHA3-384 hash: 8b4b7711b7fe9f41cda99632c9af4d4fbbf66fbeba205a1701050104c6af602a188ba3d3a2f1c6b17d3bdac091b36d8d
SHA1 hash: c7978ebe1a812467f916559cc6779e53f44b46bd
MD5 hash: ef0a7cc8e98612f26c0ffe744993dd41
humanhash: mockingbird-oscar-berlin-butter
File name:s390x
Download: download sample
Signature Gafgyt
Create hunting rule
File size:502'120 bytes
First seen:2025-07-08 16:47:13 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T1E4B401CE9520D295C4B02D33C57BA2F682EB6D3609596E1CDDD8FF6B2CB67050638B12
Magika elf
Reporter abuse_ch
Tags:elf gafgyt

Intelligence

File Origin
# of uploads :
1
# of downloads :
16
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.32056.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32058.LX.BOT.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686d4baec9eb97473767a43blinux22vpnfull_triage
Tags:
n/a
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/87babca8-c690-40c4-925c-c3c364bf3daa
Behavior Graph:
Download SVG
%3 guuid=b812e960-1800-0000-bb35-d2e3490e0000 pid=3657 /usr/bin/sudo guuid=4a08f963-1800-0000-bb35-d2e34a0e0000 pid=3658 /tmp/sample.bin guuid=b812e960-1800-0000-bb35-d2e3490e0000 pid=3657->guuid=4a08f963-1800-0000-bb35-d2e34a0e0000 pid=3658 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9f3fc2bc-59a7-4ea9-8e0f-5b5e677e810f
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1731201
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Opens /sys/class/net/* files useful for querying network interface information
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1731201 Sample: s390x.elf Startdate: 08/07/2025 Architecture: LINUX Score: 68 44 46.136.57.185, 8621 VODAFONE_ESES Spain 2->44 46 46.232.211.108, 64005, 6881 V4ESCROW-ASRO Romania 2->46 48 101 other IPs or domains 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Connects to many ports of the same IP (likely port scanning) 2->52 10 s390x.elf configuration 2->10         started        12 dash rm 2->12         started        14 dash tr 2->14         started        16 8 other processes 2->16 signatures3 process4 process5 18 s390x.elf sh 10->18         started        20 configuration 10->20         started        23 s390x.elf sh 10->23         started        signatures6 25 sh crontab 18->25         started        29 sh 18->29         started        56 Opens /sys/class/net/* files useful for querying network interface information 20->56 58 Sample reads /proc/mounts (often used for finding a writable filesystem) 20->58 31 configuration 20->31         started        33 sh crontab 23->33         started        process7 file8 42 /var/spool/cron/crontabs/tmp.Yq4NqA, ASCII 25->42 dropped 60 Sample tries to persist itself using cron 25->60 62 Executes the "crontab" command typically for achieving persistence 25->62 35 sh crontab 29->35         started        38 configuration 31->38         started        signatures9 process10 signatures11 54 Executes the "crontab" command typically for achieving persistence 35->54 40 configuration 38->40         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-07-08 16:47:34 UTC
File Type:
ELF64 Big (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xh2dvwu5yrfc5cvdsrram4h27m4daxii4c7t6ki57zelcuj5ejeq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250708-varvjscm91/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e00f01fd-b058-4c79-8677-d70fb8d19719
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/b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249

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_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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 b9f43ada9dc44a2e8aa394620670fafb38305d08e0bf3f291dfe48b1513d2249

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558219/
  
Delivery method
Distributed via web download

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