MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3
SHA3-384 hash: f2e4b82e48256662635831d16fa2dcd4983a273f6653d6d278eb51ad8d8ee2e5f210296176e664ce171b9349443440a2
SHA1 hash: 70be74ac67f14960b62c6cf98afba99499b81ae7
MD5 hash: 6bcf2877af5fc46e6e6432a80cb78336
humanhash: island-jig-cup-hawaii
File name:shadow.i486
Download: download sample
Signature Mirai
Create hunting rule
File size:62'340 bytes
First seen:2025-12-26 00:48:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:8bL12abzth+V7h49Xc5uYaAyKN/uBv+lsPCHsNEvdr3myhc/CrQld7:8bL12abzth+V7h49Xc5z/uBv+lsqHsNv
TLSH T178533BC86903DAB4EC155131E47AFB3A47BBF53F0029EE8FC7948562D4A3952A6123DC
telfhash t15d1191f60ebe1cedabe46540c21e6f51395a6633542133b14673d83822afe4604aad3c
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 :
1
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/c9e66e58-8f00-4f51-a5ef-7c95616396be/
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/694ddb8ae126b9ff439188f4/reports/f3edbe92-3c7c-4407-b45a-1a80053ae50c/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-25T15:52:00Z UTC
Last seen:
2025-12-26T13:44:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/65d5b97d-97d3-4c85-a677-6d566d7d7d5c
Behavior Graph:
Download SVG
%3 guuid=ef76190c-1800-0000-04a3-5cf8a00d0000 pid=3488 /usr/bin/sudo guuid=ab8e110e-1800-0000-04a3-5cf8a30d0000 pid=3491 /tmp/sample.bin delete-file net guuid=ef76190c-1800-0000-04a3-5cf8a00d0000 pid=3488->guuid=ab8e110e-1800-0000-04a3-5cf8a30d0000 pid=3491 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=ab8e110e-1800-0000-04a3-5cf8a30d0000 pid=3491->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=b3fd410e-1800-0000-04a3-5cf8a40d0000 pid=3492 /tmp/sample.bin write-file zombie guuid=ab8e110e-1800-0000-04a3-5cf8a30d0000 pid=3491->guuid=b3fd410e-1800-0000-04a3-5cf8a40d0000 pid=3492 clone guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493 /tmp/sample.bin dns net send-data guuid=b3fd410e-1800-0000-04a3-5cf8a40d0000 pid=3492->guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493 clone guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con b4bf20d4-f7c8-5c24-8830-c23364537aa4 8.8.4.4:53 guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493->b4bf20d4-f7c8-5c24-8830-c23364537aa4 send: 26B c610bf36-1f00-5bc3-ae18-24f0473b35c2 81.88.18.108:6767 guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493->c610bf36-1f00-5bc3-ae18-24f0473b35c2 send: 11B guuid=2130640e-1800-0000-04a3-5cf8a70d0000 pid=3495 /tmp/sample.bin guuid=9de6540e-1800-0000-04a3-5cf8a50d0000 pid=3493->guuid=2130640e-1800-0000-04a3-5cf8a70d0000 pid=3495 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9418cb99-2180-47da-bf11-a9659bff53ab
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1839548
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Performs DNS TXT record lookups
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839548 Sample: shadow.i486.elf Startdate: 26/12/2025 Architecture: LINUX Score: 64 22 kurol.io 2->22 24 81.88.18.108, 34702, 6767 LEVEL3US Germany 2->24 26 4 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 9 shadow.i486.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 32 Performs DNS TXT record lookups 22->32 process4 signatures5 34 Sample deletes itself 9->34 16 shadow.i486.elf 9->16         started        process6 process7 18 shadow.i486.elf 16->18         started        process8 20 shadow.i486.elf 18->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-26 00:49:16 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wx4wfcstaodbkc7vys4fh43thnvynuhxus6hzahdib5vjlquv3bq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251226-a6fryack6t/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Deletes itself
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-1
YARA:
Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/f7c926ce-6f46-435c-a3a9-89cc3921479d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.09
Link:
https://yomi.yoroi.company/submissions/b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3

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_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 b5f9628a530386150bf5c4b853f3733b6b86d0f7a4bc7c80e3407b54ae14aec3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3742268/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739062/

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