MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81c697f89573af8f1755c71fbdd0c606722a82320d73c479598deeb49228f977. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments

SHA256 hash: 81c697f89573af8f1755c71fbdd0c606722a82320d73c479598deeb49228f977
SHA3-384 hash: 37ca1355e27caf15537a3ae3852db7a6c2390cb3d6e7212b5f495424fd6d9b0fd4868258cdc1a27a3aaad7d3ce86af98
SHA1 hash: b546ef6ffcb2560a2df8a6f66721343304ac4a67
MD5 hash: da3ddbe890c1e69d1b53a4a2c8a8ffe5
humanhash: video-earth-comet-robert
File name:sparc
Download: download sample
Signature Mirai
File size:43'832 bytes
First seen:2025-09-22 05:52:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:5wSkEBxRg7J03RLuyYOX2n3rhTytpznmg+OSQF+qbSuUoy5XliCD9kb/cPby+r/j:L8iLuyWhTytRnn+dQKuXyZXWzcR
TLSH T180135C328678490BC6D0E37711E35372E0FA6B846194674F3E5A0D8EFE5A340677B2E2
telfhash t1f0f0c984fa7d8e1e46e30570d8784ba0a193962380324722dfa4c9c4d83f15af10dd1e
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
89
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
bash gcc lolbin obfuscated
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-21T20:30:00Z UTC
Last seen:
2025-09-21T20:30:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=1b27959d-2000-0000-9902-4ce177090000 pid=2423 /usr/bin/sudo guuid=7786519f-2000-0000-9902-4ce17c090000 pid=2428 /tmp/sample.bin guuid=1b27959d-2000-0000-9902-4ce177090000 pid=2423->guuid=7786519f-2000-0000-9902-4ce17c090000 pid=2428 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1781772 Sample: sparc.elf Startdate: 22/09/2025 Architecture: LINUX Score: 48 14 169.254.169.254, 80 USDOSUS Reserved 2->14 16 109.202.202.202, 80 INIT7CH Switzerland 2->16 18 6 other IPs or domains 2->18 20 Multi AV Scanner detection for submitted file 2->20 6 dash rm 2->6         started        8 dash grep 2->8         started        10 dash rm 2->10         started        12 2 other processes 2->12 signatures3 process4
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-09-21 23:56:52 UTC
File Type:
ELF32 Big (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
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_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
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 81c697f89573af8f1755c71fbdd0c606722a82320d73c479598deeb49228f977

(this sample)

  
Delivery method
Distributed via web download

Comments