MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae. 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


Mirai


Vendor detections: 12


Intelligence 12 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae
SHA3-384 hash: 9f5b5f6c3022a0bdd2fdbb52d7b54c4575b5ac1a2b275f0f3006d45964f065589d18c8e0e74294b3fe1b935ecd3c128f
SHA1 hash: f47cfb6d2697073a9a96826c24e3011221f63b49
MD5 hash: d1082ba4f6a77e1e379b57125639f7a3
humanhash: may-two-hotel-nuts
File name:ub8ehJSePAfc9FYqZIT6.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:143'288 bytes
First seen:2026-01-17 14:24:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:aQXQgYvf3q6hr96GX72XYhw7EcpmzwMuuBaW66NHde:VggONJwtmkXkx9e
TLSH T12FE31907B99080FDC8E9C1784BFEA136D932B5AE123CB15B1784AE362B5DE301F6D615
telfhash t16851567138553d9461f3b626b30aeaa5ec220e2018d571e7eb7378f98f157854e72833
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 mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 9fab0532ae190c8bf1462fca02d981fad5ea1685304a8eee089005a34920b760
File size (compressed) :52'408 bytes
File size (de-compressed) :143'288 bytes
Format:linux/amd64
Packed file: 9fab0532ae190c8bf1462fca02d981fad5ea1685304a8eee089005a34920b760

Intelligence

File Origin
# of uploads :
1
# of downloads :
49
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/a488f299-e3df-4bff-a256-45ae6bf827d3/
Detection(s):
Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

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

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated
Link:
https://www.filescan.io/uploads/696b9be6fdafd7624aafaf6d/reports/0869ff0c-2170-4f72-9ee2-4cfa2e7c5b01/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-17T11:33:00Z UTC
Last seen:
2026-01-17T12:09:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/72fe9b28-cad2-4b80-8cba-18e2e881ccac
Behavior Graph:
Download SVG
%3 guuid=e07aec6c-1800-0000-c8e0-ef11770d0000 pid=3447 /usr/bin/sudo guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454 /tmp/sample.bin delete-file net guuid=e07aec6c-1800-0000-c8e0-ef11770d0000 pid=3447->guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a835026f-1800-0000-c8e0-ef117f0d0000 pid=3455 /tmp/sample.bin guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->guuid=a835026f-1800-0000-c8e0-ef117f0d0000 pid=3455 clone guuid=1e7fabaa-1800-0000-c8e0-ef11e50d0000 pid=3557 /tmp/sample.bin guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->guuid=1e7fabaa-1800-0000-c8e0-ef11e50d0000 pid=3557 clone guuid=c75454e6-1800-0000-c8e0-ef11570e0000 pid=3671 /tmp/sample.bin guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->guuid=c75454e6-1800-0000-c8e0-ef11570e0000 pid=3671 clone guuid=47b10322-1900-0000-c8e0-ef11f10e0000 pid=3825 /tmp/sample.bin guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->guuid=47b10322-1900-0000-c8e0-ef11f10e0000 pid=3825 clone guuid=6cd40722-1900-0000-c8e0-ef11f30e0000 pid=3827 /tmp/sample.bin dns net send-data zombie guuid=04bbdc6e-1800-0000-c8e0-ef117e0d0000 pid=3454->guuid=6cd40722-1900-0000-c8e0-ef11f30e0000 pid=3827 clone guuid=6cd40722-1900-0000-c8e0-ef11f30e0000 pid=3827->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=6cd40722-1900-0000-c8e0-ef11f30e0000 pid=3827->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 2014B 3ec2bfaf-8e71-5eeb-b8ce-6ffe78958b80 weifang.serveftp.com:3778 guuid=6cd40722-1900-0000-c8e0-ef11f30e0000 pid=3827->3ec2bfaf-8e71-5eeb-b8ce-6ffe78958b80 send: 260B
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1852505
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-17 14:25:48 UTC
File Type:
ELF64 Little (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kh7jdw6g23rzdww2musdjtowrlg35savwebx4pjs3i3ikdqikoxa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd defense_evasion discovery linux
Link:
https://tria.ge/reports/260117-rrk7jsdz5g/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_d0c57a2e Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_520deeb8 Linux_Trojan_Mirai_6a77af0f Linux_Trojan_Mirai_01e4a728 Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/252c9aef-bf23-45e3-9c3b-96279aabb9da
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae

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_Trojan_Gafgyt_0cd591cd
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_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
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_Mirai_01e4a728
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_520deeb8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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

Mirai

elf 9fab0532ae190c8bf1462fca02d981fad5ea1685304a8eee089005a34920b760

Mirai

elf 51fe91dbc6d6e391dada652434cdd68acdbec815b1037e3d32da36850e0853ae

(this sample)

  
Dropped by
SHA256 9fab0532ae190c8bf1462fca02d981fad5ea1685304a8eee089005a34920b760
  
URLhaus
https://urlhaus.abuse.ch/url/3757610/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 ef8dc75ce622deba06f9f25e20ba850d
  
URLhaus
https://urlhaus.abuse.ch/url/3753592/
  
URLhaus
https://urlhaus.abuse.ch/url/3759490/

Comments