MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122
SHA3-384 hash: b98aac5da4845aa7619a167677e6ad7d1079a177998bac9c153061b21e297a1c0ffb05937f1da6362fa5ffdaea11e13a
SHA1 hash: 52b0a3bbf4e22539b41561f9511af558ee740ff0
MD5 hash: ac282af9335dce9342715bc5ca4ace8f
humanhash: social-ink-gee-cola
File name:renji.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:92'008 bytes
First seen:2025-10-05 02:53:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:VMubqvMvKD1b8AcGuFfglnaM0FcsxH6R/CI8amQNmsvN3x6ZwS:VMubkMvKDU9gl30Fcsanq0H
TLSH T1C1932951FD819612CAC11276FB9E428D372713A8E2EE3203DD295F2137CB96B0E7B585
telfhash t13341c0924a9c1bdc27f4c348868d525e86f535f91b003adacf4fabaf04969d1741e436
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 fa37a402046a41c935e53266abc74cb7d6420348c2c72b845f0f02a8cd0e9c19
File size (compressed) :40'892 bytes
File size (de-compressed) :92'008 bytes
Format:linux/arm
Packed file: fa37a402046a41c935e53266abc74cb7d6420348c2c72b845f0f02a8cd0e9c19

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10056451-0
Create hunting rule

Unix.Trojan.Mirai-10056463-0
Create hunting rule

Unix.Trojan.Mirai-10057788-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade rust
Link:
https://www.filescan.io/uploads/68e1ddea5a3bccf09eb80e47/reports/a4995318-68fc-42fd-ae26-da91a5ddca38/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
47
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-05T00:43:00Z UTC
Last seen:
2025-10-05T00:55:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4316de23-5ce5-4b6c-b8b3-f1ab36eed0e5
Behavior Graph:
Download SVG
%3 guuid=ddeca959-1a00-0000-fabb-a271cf0a0000 pid=2767 /usr/bin/sudo guuid=8a914b5c-1a00-0000-fabb-a271d20a0000 pid=2770 /tmp/sample.bin guuid=ddeca959-1a00-0000-fabb-a271cf0a0000 pid=2767->guuid=8a914b5c-1a00-0000-fabb-a271d20a0000 pid=2770 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b6b839e3-18e9-41d6-a72d-9accada10328
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1789246
Signature
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1789246 Sample: renji.arm.elf Startdate: 05/10/2025 Architecture: LINUX Score: 56 29 wrxcnc.com 196.251.116.246, 2001, 58234 xneeloZA Seychelles 2->29 31 169.254.169.254, 80 USDOSUS Reserved 2->31 33 4 other IPs or domains 2->33 35 Multi AV Scanner detection for submitted file 2->35 10 renji.arm.elf 2->10         started        12 python3.8 dpkg 2->12         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 process5 18 renji.arm.elf 10->18         started        process6 20 renji.arm.elf 18->20         started        process7 22 renji.arm.elf 20->22         started        process8 24 renji.arm.elf 22->24         started        27 renji.arm.elf 22->27         started        signatures9 37 Manipulation of devices in /dev 24->37 39 Deletes system log files 24->39
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-05 03:10:15 UTC
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3d4rlb6lvs222m3dfslub63mlfpst3hlwngurflqgr777qrneera._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/251005-dd53xabl2y/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/88ecf076-0624-44a1-927a-2bcc8376c7a2
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/d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122

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
Create hunting rule
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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_d94e1020
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 fa37a402046a41c935e53266abc74cb7d6420348c2c72b845f0f02a8cd0e9c19

Mirai

elf d8f91587cbacb5ad33632c9740fb6c595f29ecebb34d489570347fffc22d2122

(this sample)

  
Dropped by
SHA256 fa37a402046a41c935e53266abc74cb7d6420348c2c72b845f0f02a8cd0e9c19
  
URLhaus
https://urlhaus.abuse.ch/url/3624317/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 1f2728dda1f9a0874998199efbf51b4a
  
URLhaus
https://urlhaus.abuse.ch/url/3624323/
  
URLhaus
https://urlhaus.abuse.ch/url/3657416/

Comments