MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf. 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: 11


Intelligence 11 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf
SHA3-384 hash: 261cf1b444b2c76263790be061dab34954bfa732008a4ff743cdfe0d6f496b73da7ba79357df03ae787d81dccb7d0b08
SHA1 hash: 8dcedc19c2ce3d6faf770d1b5ed9425946e51c8e
MD5 hash: fbf5d3fa7a58b89e334d7a2d9254a77f
humanhash: one-fanta-utah-diet
File name:tux.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:152'266 bytes
First seen:2026-03-24 03:59:06 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:aufh1cc4RRye0MKazEdXIZAF3G2Ov1WCWUc1M/9fl:auffxEtKazEdXIZk3GcCWUWM/9fl
TLSH T154E34B56EB818B03C4D61775BAAF424533239B64D3DB73069928BFB43F8279E0E63502
telfhash t1f521e2325b3552226a51dc648cfd97e2152d87165784eb33cf32c4cc641a09eea37c4f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
37
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/bb37216c-06ad-4670-8fc1-2d8ac525a3f2/
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135868-0
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Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7135928-0
Create hunting rule

Unix.Dropper.Mirai-7135965-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

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

Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
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Unix.Trojan.Mirai-10027280-0
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YARA.SIGNATURE_BASE_MAL_ARM_LNX_Mirai_Mar13_2022.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Kills processes
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 botnet gafgyt gcc masquerade mirai mirai obfuscated obfuscated rust
Link:
https://www.filescan.io/uploads/69c20c14493cb7d62d0f5da7/reports/920ea441-e001-4551-b582-1e4e28159f4d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
25
Number of processes launched:
1
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f9d78431-8565-44cf-9e68-9aad75530cb2
Behavior Graph:
Download SVG
%3 guuid=d2e3e665-1900-0000-7245-7291fb0f0000 pid=4091 /usr/bin/sudo guuid=a4eff967-1900-0000-7245-729100100000 pid=4096 /tmp/sample.bin guuid=d2e3e665-1900-0000-7245-7291fb0f0000 pid=4091->guuid=a4eff967-1900-0000-7245-729100100000 pid=4096 execve
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4c2e14dc-926f-4b80-81fb-d82341c1be70
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kmnthxi2phckk7fcv3mkf3gzpxyfs5giju45gw4mut2wr3n2d3hq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai credential_access defense_evasion
Link:
https://tria.ge/reports/260324-ej7pcsdv4m/
Behaviour
Changes its process name
Reads process memory
Enumerates running processes
Modifies Watchdog functionality
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
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Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:Mirai_Botnet_Malware
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Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 531b33dd1a79c4a57ca2aed8a2ecd97df05974c84d39d35b8ca4f568edba1ecf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3802189/
  
Delivery method
Distributed via web download

Comments