MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d
SHA3-384 hash: ae948d5f4be6c2a98b455584148f2fa82d9fac64aee1fe2e0dd660bb15f2727c1b789dc4f024889c39c6d30cfa103202
SHA1 hash: f7e73a3dea0d17406b68bb81f893ab489975d391
MD5 hash: 018d50fabe5481be05d03102e1564a8d
humanhash: robin-alpha-aspen-princess
File name:arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:77'424 bytes
First seen:2025-12-26 06:16:22 UTC
Last seen:2025-12-26 12:38:52 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:MuPsf8Gd2HPX29bgv9ovOzBKbqxAtS6HYpjRbk0wELJ:MrEg2vG5QovJs6wjRtLJ
TLSH T1B7730260A2B78D50F9434A30AD964F922C4F1F6CDB2F65633CC7C52CEAA151107A9BE6
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
File size (compressed) :77'424 bytes
File size (de-compressed) :217'384 bytes
Format:linux/arm
Unpacked file: af206ad253426ae2d09399c980540ec001c3cb1391b62ce24d136e2e91993745

Intelligence

File Origin
# of uploads :
2
# of downloads :
32
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/abf12137-96da-4f61-8fd4-aebdbd0ab28d/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/694e286ce126b9ff4391d923/reports/bc920b68-82cd-446d-bc8b-bdf093ecbaeb/overview
Result
Gathering data
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b2cc77a8-c1dc-44c0-b32b-0dba8503f5e9
Behavior Graph:
Download SVG
%3
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/338d17ec-a542-4f1e-b061-9ecfed2a1f56
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1839641
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839641 Sample: arm6.elf Startdate: 26/12/2025 Architecture: LINUX Score: 60 34 169.254.169.254, 80 USDOSUS Reserved 2->34 36 109.202.202.202, 80 INIT7CH Switzerland 2->36 38 3 other IPs or domains 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected Gafgyt 2->42 44 Sample is packed with UPX 2->44 9 arm6.elf 2->9         started        11 python3.8 dpkg 2->11         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 process5 17 arm6.elf 9->17         started        file6 32 /usr/local/bin/infinitd, ELF 17->32 dropped 20 arm6.elf sh 17->20         started        22 arm6.elf sh 17->22         started        24 arm6.elf 17->24         started        26 24 other processes 17->26 process7 process8 28 sh systemctl 20->28         started        30 sh systemctl 22->30         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-26 06:17:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhziqwy55qlpyb36xfu4agp2r2kgtaaecclwvgfutaq65uyuvi6q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet discovery persistence privilege_escalation upx
Link:
https://tria.ge/reports/251226-g15x7s1ran/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
UPX packed file
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Write file to user bin folder
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/41607f1c-1dcf-4e9a-8f3b-cc122d574b21
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf 81f2885b1dec16fc077eb969c019fa8e9469800410976a98b49821eed314aa3d

(this sample)

Mirai

elf af206ad253426ae2d09399c980540ec001c3cb1391b62ce24d136e2e91993745

  
URLhaus
https://urlhaus.abuse.ch/url/3722815/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 af206ad253426ae2d09399c980540ec001c3cb1391b62ce24d136e2e91993745
  
Dropping
MD5 7023d980b9d72b02f8e0336e63497941
  
URLhaus
https://urlhaus.abuse.ch/url/3722819/
  
URLhaus
https://urlhaus.abuse.ch/url/3719335/

Comments