MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4142821aac3ac715e8e10b2f55bafa71b9a7413466bd8fbf0a8384c93a881290. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments

SHA256 hash: 4142821aac3ac715e8e10b2f55bafa71b9a7413466bd8fbf0a8384c93a881290
SHA3-384 hash: 38bd75c106a050c190102285a93ac6d67699c2fa8ab6e4715bd90a9022faee5916a619da5e5af593dd4903e7236ffb05
SHA1 hash: fd876e25b415f82e28513a697af0cc78f4fe3f74
MD5 hash: e836b3dfa021cc9efd623f1b4bd0639d
humanhash: three-floor-magnesium-white
File name:fent.arm
Download: download sample
Signature Mirai
File size:50'488 bytes
First seen:2026-01-13 07:19:07 UTC
Last seen:2026-01-14 07:52:16 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:ymvsf14Wz1uFpmIcr0HMu4Vb7N2mJehrzxaSD8+uMhSDSsb+YkP1:zsf14WEFPW0su4d7NZYhrFaSD8+uMek
TLSH T176332B51B8C19A17C9D4137AF76E858E3B2467E8F2CF72139D212F20369681F0DA7E85
telfhash t14931c86a9f081dccb7e0842602cf273f759a39f4521529699f6e9b1f022bec1754183b
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

Intelligence


File Origin
# of uploads :
2
# of downloads :
83
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-13T02:07:00Z UTC
Last seen:
2026-01-15T00:10:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=e3e6b87d-1500-0000-8a0e-8f58240c0000 pid=3108 /usr/bin/sudo guuid=8958c27f-1500-0000-8a0e-8f582b0c0000 pid=3115 /tmp/sample.bin guuid=e3e6b87d-1500-0000-8a0e-8f58240c0000 pid=3108->guuid=8958c27f-1500-0000-8a0e-8f582b0c0000 pid=3115 execve
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
64 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1849679 Sample: fent.arm.elf Startdate: 13/01/2026 Architecture: LINUX Score: 64 18 87.121.112.124, 49820, 911 NETERRA-ASBG Bulgaria 2->18 20 109.202.202.202, 80 INIT7CH Switzerland 2->20 22 3 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 fent.arm.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 fent.arm.elf 8->14         started        process6 16 fent.arm.elf 14->16         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-01-13 07:19:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai
Verdict:
Unknown
Tags:
trojan gafgyt
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_ea92cca8 Linux_Gafgyt_May_2024
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:botnet_Yakuza
Author:NDA0E
Description:Yakuza botnet
Rule name:Linux_Generic_Threat_d94e1020
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Author:Elastic Security

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4142821aac3ac715e8e10b2f55bafa71b9a7413466bd8fbf0a8384c93a881290

(this sample)

  
Delivery method
Distributed via web download

Comments