MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b
SHA3-384 hash: b65ef5ac06cdd5cd5397113f1fbc260ecd623afe3f262177a6f8a5b4e8670e4b1fe23631ac68593ff46200b8895293d9
SHA1 hash: 43a044e2ae299d370b1bd146aeccd8b70deebd5e
MD5 hash: fff4d7e5337f9073945a40f11666c3e7
humanhash: oranges-butter-nevada-single
File name:yakuza.mips
Download: download sample
Signature Gafgyt
Create hunting rule
File size:137'917 bytes
First seen:2026-01-18 19:20:30 UTC
Last seen:2026-02-02 14:37:28 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:vfVD3dGMo8LXxF6csxft+CnOU0R3yKt20SbfeYFGLK3ZVq5hW8xxxx88Lskz4SFy:lwQKfq5hW8xxxx88LISF3xemqY1fuBme
TLSH T186D3B76A3E11AFFEE268863007F75F70939525932AA19781F26CDB085F7128D1C5F7A0
telfhash t11821e243a6b68a6c6ff3582858bc06b11592e6237250bf70ef5ec1809d37002b475e8b
Magika elf
Reporter abuse_ch
Tags:elf gafgyt

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
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.Proxy.Mirai-7844054-0
Create hunting rule

Unix.Trojan.Mirai-8041698-0
Create hunting rule

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

Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-18T17:33:00Z UTC
Last seen:
2026-01-19T12:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8e6e5d00-b136-491c-a795-eeeac407e701
Behavior Graph:
Download SVG
%3 guuid=af328823-1a00-0000-ba1d-613ba10a0000 pid=2721 /usr/bin/sudo guuid=31d69825-1a00-0000-ba1d-613ba80a0000 pid=2728 /tmp/sample.bin guuid=af328823-1a00-0000-ba1d-613ba10a0000 pid=2721->guuid=31d69825-1a00-0000-ba1d-613ba80a0000 pid=2728 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7b258c43-b1af-45ee-9a16-d4d53a545a33
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1853006
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1853006 Sample: yakuza.mips.elf Startdate: 18/01/2026 Architecture: LINUX Score: 80 37 103.211.218.101, 23 PUBLIC-DOMAIN-REGISTRYUS Seychelles 2->37 39 daisy.ubuntu.com 2->39 41 Found malware configuration 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 2 other signatures 2->47 15 yakuza.mips.elf 2->15         started        17 python3.8 dpkg 2->17         started        signatures3 process4 process5 19 yakuza.mips.elf 15->19         started        process6 21 yakuza.mips.elf 19->21         started        process7 23 yakuza.mips.elf 21->23         started        process8 25 yakuza.mips.elf 23->25         started        process9 27 yakuza.mips.elf 25->27         started        process10 29 yakuza.mips.elf 27->29         started        process11 31 yakuza.mips.elf 29->31         started        process12 33 yakuza.mips.elf 31->33         started        process13 35 yakuza.mips.elf 33->35         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-18 19:11:10 UTC
File Type:
ELF32 Big (Exe)
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpfjhdxrhmfqgig7pirerl43yy47omwybhfcwvuzpl3ox7rounfq._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt discovery
Link:
https://tria.ge/reports/260118-x2jz5aes3h/
Behaviour
System Network Configuration Discovery
Changes its process name
Malware Config
C2 Extraction:
103.211.218.101:23
Verdict:
Malicious
Tags:
Unix.Trojan.Gafgyt-6981154-0
YARA:
n/a
Link:
https://app.threat.zone/submission/fe7d42b1-2f82-48f7-9204-5f51af7ccf2a
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: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: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 f3cde3780136aa469649c5028c4eb3262738579140d03448c618c7ca50cfd7db

Gafgyt

elf b3ca938ef13b0b0320df7a2248af9bc639f732d809ca2b56997af6ebfe2ea34b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3759958/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 f3cde3780136aa469649c5028c4eb3262738579140d03448c618c7ca50cfd7db
  
Dropped by
MD5 6972d3d62253c486b78ab5a4ba17584b
  
URLhaus
https://urlhaus.abuse.ch/url/3759960/

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