MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 921d8c566b67a8c02ed49315166644a7f55a37a063d34ee949165f09d1737bae. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 921d8c566b67a8c02ed49315166644a7f55a37a063d34ee949165f09d1737bae
SHA3-384 hash: 572d8fd6750a2f90acb2e19a84d476288d87a43c47696ff1e58c1224ef87520809e49aab47d1a5b0625a043d9751cf11
SHA1 hash: 5ac5641dfc0887b8fe18e04477b14c5103552901
MD5 hash: dc205d41fe44d6c19c5a52a48873281e
humanhash: delaware-violet-dakota-low
File name:zerarm7
Download: download sample
Signature Mirai
Create hunting rule
File size:74'016 bytes
First seen:2025-12-24 15:38:01 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:yBnKICq4A07nOl4W5D0shMQ99sAHLd7FIadoj2yg89pg9lUbiWnwWlk9cTG/:zH3eP1FIaOj2yg8tDnFlgcTG/
TLSH T1DF730649FC815B15D4E522BEFA1E118D336357B8E3EFB212DD101B15778A92B0E77A02
telfhash t10cd02ba08d1a4a5cbbf1c245516a128b998123f8990249001cbcff86d003410b2462b5
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d26ecbb4-fa18-40d3-9045-8db96ea1c7d5
Behavior Graph:
Download SVG
%3 guuid=0ac32035-1a00-0000-271a-88eb59090000 pid=2393 /usr/bin/sudo guuid=9eb24038-1a00-0000-271a-88eb5a090000 pid=2394 /tmp/sample.bin guuid=0ac32035-1a00-0000-271a-88eb59090000 pid=2393->guuid=9eb24038-1a00-0000-271a-88eb5a090000 pid=2394 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23c25208-4f4d-4e7a-964d-7c62b0339051
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1838898
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838898 Sample: zerarm7.elf Startdate: 24/12/2025 Architecture: LINUX Score: 48 14 109.202.202.202, 80 INIT7CH Switzerland 2->14 16 206.189.99.30, 33370, 39691 DIGITALOCEAN-ASNUS United States 2->16 18 3 other IPs or domains 2->18 20 Multi AV Scanner detection for submitted file 2->20 8 zerarm7.elf 2->8         started        signatures3 process4 process5 10 zerarm7.elf 8->10         started        process6 12 zerarm7.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/921d8c566b67a8c02ed49315166644a7f55a37a063d34ee949165f09d1737bae
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/921d8c566b67a8c02ed49315166644a7f55a37a063d34ee949165f09d1737bae/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-24 15:38:29 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 36 (30.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sioyyvtlm6umalwusmkrmzseu72vun5ampju52kjczpqtultpoxa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/251224-s3dghsf15c/
Behaviour
Changes its process name
Renames itself
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9885259-0
YARA:
n/a
Link:
https://app.threat.zone/submission/19f8b54e-b995-46e2-ac07-b9720064b7f6
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:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
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 921d8c566b67a8c02ed49315166644a7f55a37a063d34ee949165f09d1737bae

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739140/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3740308/

Comments