MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767. 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: 13


Intelligence 13 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767
SHA3-384 hash: 203023fadf4f3a81b72326430ca37c531cb865ac7f7c0c640f28ef4269b8bf624e09bb7e5f6990c14c6a56ec32e76cd0
SHA1 hash: c67329708e58839e1dc4ff6a18e96569f0cec23b
MD5 hash: 15875a209c11fada0ec5b0821482d774
humanhash: maine-mockingbird-william-leopard
File name:S3o.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:100'660 bytes
First seen:2025-11-21 23:16:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:FnbhjFYbf1Ui5hKbc+sxKLb+mX1QEUSr1pAm3Jn5wR54yfZLi/sd:FbhWbT+c+sxK2mlQEUs1Z3vY5Xi/sd
TLSH T11AA36CC6F643D8F9EC5605343132FB379F72E5BA2129DE83D7A89A627C63601C406A5C
telfhash t1d03103f666aa0ce96bc09913e20e6a31bd0e2b6f256037b315f355343256142677fd3c
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 56397c64274abe4fc956cfa96fa0a8229b385b339a959a467c4295c824968601
File size (compressed) :45'432 bytes
File size (de-compressed) :100'660 bytes
Format:linux/i386
Packed file: 56397c64274abe4fc956cfa96fa0a8229b385b339a959a467c4295c824968601

Intelligence

File Origin
# of uploads :
1
# of downloads :
51
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-14.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/6920f2fdf96b58f0dc7f99ee/reports/7709fca9-105c-4266-a64a-232ed9ffb60d/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-21T20:27:00Z UTC
Last seen:
2025-11-22T06:07:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9a526cc4-85b3-431d-9b40-b387d7f60ad1
Behavior Graph:
Download SVG
%3 guuid=62444286-1700-0000-debf-ccd7860a0000 pid=2694 /usr/bin/sudo guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702 /tmp/sample.bin net guuid=62444286-1700-0000-debf-ccd7860a0000 pid=2694->guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=1beb7a88-1700-0000-debf-ccd7900a0000 pid=2704 /tmp/sample.bin guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702->guuid=1beb7a88-1700-0000-debf-ccd7900a0000 pid=2704 clone guuid=374fbfb4-1800-0000-debf-ccd79f0c0000 pid=3231 /tmp/sample.bin guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702->guuid=374fbfb4-1800-0000-debf-ccd79f0c0000 pid=3231 clone guuid=b844c3b4-1800-0000-debf-ccd7a00c0000 pid=3232 /tmp/sample.bin net send-data zombie guuid=dd804d88-1700-0000-debf-ccd78e0a0000 pid=2702->guuid=b844c3b4-1800-0000-debf-ccd7a00c0000 pid=3232 clone guuid=84e38088-1700-0000-debf-ccd7910a0000 pid=2705 /tmp/sample.bin guuid=1beb7a88-1700-0000-debf-ccd7900a0000 pid=2704->guuid=84e38088-1700-0000-debf-ccd7910a0000 pid=2705 clone guuid=a4e98888-1700-0000-debf-ccd7920a0000 pid=2706 /tmp/sample.bin dns net send-data zombie guuid=1beb7a88-1700-0000-debf-ccd7900a0000 pid=2704->guuid=a4e98888-1700-0000-debf-ccd7920a0000 pid=2706 clone guuid=a4e98888-1700-0000-debf-ccd7920a0000 pid=2706->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1102B 27df0594-2c83-55f0-869f-ffb273ade180 vcute69.bounceme.net:12121 guuid=a4e98888-1700-0000-debf-ccd7920a0000 pid=2706->27df0594-2c83-55f0-869f-ffb273ade180 send: 174B guuid=b844c3b4-1800-0000-debf-ccd7a00c0000 pid=3232->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 585B 17d12814-2053-5003-8343-6c5dc360bc15 vcute69.bounceme.net:80 guuid=b844c3b4-1800-0000-debf-ccd7a00c0000 pid=3232->17d12814-2053-5003-8343-6c5dc360bc15 send: 20B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b854388-e520-446c-ab4a-c54194ec3cc7
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1818936
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1818936 Sample: S3o.x86.elf Startdate: 22/11/2025 Architecture: LINUX Score: 72 26 169.254.169.254, 80 USDOSUS Reserved 2->26 28 109.202.202.202, 80 INIT7CH Switzerland 2->28 30 4 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected Mirai 2->38 8 S3o.x86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 process4 process5 16 S3o.x86.elf 8->16         started        18 S3o.x86.elf 8->18         started        20 S3o.x86.elf 8->20         started        process6 22 S3o.x86.elf 16->22         started        24 S3o.x86.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-21 23:17:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=poh3vep3nmq67fxx6lu5wfkcmzifnubahileg3cwbvmasryfk5tq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/251121-29tazswrfw/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
vcute69.bounceme.net
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Mirai_fa3ad9d0 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_93fc3657 Linux_Trojan_Mirai_804f8e7c Linux_Trojan_Mirai_99d78950 Linux_Trojan_Mirai_a68e498c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/71bab68f-b0e0-4d89-9db7-f21a88adcd4e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_804f8e7c
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_93fc3657
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_a68e498c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 56397c64274abe4fc956cfa96fa0a8229b385b339a959a467c4295c824968601

Mirai

elf 7b8fba91fb6b21ef96f7f2e9db1542665056d0203a16436c560d580947055767

(this sample)

  
Dropped by
SHA256 56397c64274abe4fc956cfa96fa0a8229b385b339a959a467c4295c824968601
  
URLhaus
https://urlhaus.abuse.ch/url/3713344/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 8e52258611f2f04c19c73102adfbff85
  
URLhaus
https://urlhaus.abuse.ch/url/3712133/

Comments