MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d6da06b5d9ae41f7d730777dbc98f9a06967cc8df9ca857ad280fb9ffc409c. 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 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d6da06b5d9ae41f7d730777dbc98f9a06967cc8df9ca857ad280fb9ffc409c
SHA3-384 hash: 567e1c9fcbc61cdc7a4912dba3891c6e852991d4038d45a0c9161a12bf9078f2614972c8c40a3566b65767c168c67504
SHA1 hash: b94e5f78ec8689f65f1906c30e889d8439244264
MD5 hash: 2981df1fc5ec43ab7e1aecdc15eb1783
humanhash: blue-sink-happy-juliet
File name:yakuza.x86
Download: download sample
Signature Gafgyt
Create hunting rule
File size:102'934 bytes
First seen:2026-02-06 13:57:16 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:4N2nTlqWoerOuqoYyhADXr5SrcphaijsTmHyVQX5A+u+cm:dcyhQrphaijQmHyVQX5A+u+cm
TLSH T1F0A36C1B6241C5FBC08756B62BDFA6615823F83A0B33710673D9BCA83F219C95D6E781
telfhash t1c421d043aab68a6c6ff3582498bc06b11592a6237250af70ef5ec1809d37002b475e8b
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 :
25
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Gafgyt-6981154-0
Create hunting rule

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

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

Unix.Dropper.Mirai-7540662-0
Create hunting rule

Unix.Proxy.Mirai-7844054-0
Create hunting rule

Unix.Trojan.Mirai-9864781-0
Create hunting rule

Result
Gathering data
Malware family:
Gafgyt
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6f870673-210c-4485-9173-614038c49468
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1864783
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1864783 Sample: yakuza.x86.elf Startdate: 06/02/2026 Architecture: LINUX Score: 96 19 158.94.210.187, 23, 57916 JANETJiscServicesLimitedGB United Kingdom 2->19 21 daisy.ubuntu.com 2->21 23 Suricata IDS alerts for network traffic 2->23 25 Found malware configuration 2->25 27 Malicious sample detected (through community Yara rule) 2->27 29 4 other signatures 2->29 9 yakuza.x86.elf 2->9         started        11 python3.8 dpkg 2->11         started        signatures3 process4 process5 13 yakuza.x86.elf 9->13         started        process6 15 yakuza.x86.elf 13->15         started        process7 17 yakuza.x86.elf 15->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91d6da06b5d9ae41f7d730777dbc98f9a06967cc8df9ca857ad280fb9ffc409c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91d6da06b5d9ae41f7d730777dbc98f9a06967cc8df9ca857ad280fb9ffc409c/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shlnubvv3gxed56xgb3x3pey7gqgsz6mrx44vbl22kapxh74icoa._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/260206-q9zl8ahs9f/
Behaviour
Changes its process name
Writes DNS configuration
Malware Config
C2 Extraction:
158.94.210.187:23
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_09c3070e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_148b91a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_32eb0c81
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_656bf077
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_779e142f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a0a4de11
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a6a2adb9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_dd0d6173
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_e0673a90
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_f3d83a74
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:NET
Create hunting rule
Author:malware-lu
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

sh 0bbba545ef1e456b0b4c91905a51275d05ef34a3cbe1607208ab26acb7551103

Gafgyt

elf 91d6da06b5d9ae41f7d730777dbc98f9a06967cc8df9ca857ad280fb9ffc409c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3773056/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 0bbba545ef1e456b0b4c91905a51275d05ef34a3cbe1607208ab26acb7551103
  
Dropped by
MD5 5b4534872d9a9706eee855dd0ad3b504
  
URLhaus
https://urlhaus.abuse.ch/url/3773088/

Comments