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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36
SHA3-384 hash: c68d43195113b3ab346bf2adb4ebebf1dce432214e5ff566a4b9c1b3a209219cfc2a57657bd2ad68bf1e447503f8d29f
SHA1 hash: a2f8e3b60fc3e849534d552df12c3aef9af75889
MD5 hash: 79b2d8acd1dc81387ea9389c67044945
humanhash: mars-undress-tennessee-finch
File name:sora.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:85'312 bytes
First seen:2026-09-15 16:06:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:E6/iw/0w8HoQ5uy8NxqlcJ0vXxh11xYqcn6BZOpkMoA3gR:x/8RHTgMcJ0fmqJZOpkM/QR
TLSH T17C83C6297E218FBEF79D823947B78F22964837C637E1D581D15CDA005E7028E641BFA8
telfhash t175014948893c57f0d7665ddc6bddff76e05260cf49615e778e00b9aa9b6c9428e00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 dfa5758cd0b07e380df4a5067a7c18779c1b99f352ae747a25b6fc3f24469d6a
File size (compressed) :28'876 bytes
File size (de-compressed) :85'312 bytes
Format:linux/mips
Packed file: dfa5758cd0b07e380df4a5067a7c18779c1b99f352ae747a25b6fc3f24469d6a

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Link:
https://research.acce.ciphertechsolutions.com/results/23ddcaff-cc6e-44cb-a09a-66e12352b57b/
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

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

Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Unix.Trojan.Mirai-9819563-0
Create hunting rule

Unix.Trojan.Mirai-9820623-0
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6aa96d34516dbee4ae2c94a1/reports/9bd5e6e5-00ab-4e93-b379-5ad352949226/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-09-15T14:33:00Z UTC
Last seen:
2026-09-16T06:03:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8210ce1a-0595-4307-95b5-9cbc8870e86c
Behavior Graph:
Download SVG
%3 guuid=094c05c5-1c00-0000-cc01-4aafaf090000 pid=2479 /usr/bin/sudo guuid=c5e663c9-1c00-0000-cc01-4aafb7090000 pid=2487 /tmp/sample.bin guuid=094c05c5-1c00-0000-cc01-4aafaf090000 pid=2479->guuid=c5e663c9-1c00-0000-cc01-4aafb7090000 pid=2487 execve
Gathering data
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1973295
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1973295 Sample: sora.mips.elf Startdate: 15/09/2026 Architecture: LINUX Score: 76 24 119.25.246.239 ZAQJCOMCoLtdJP Japan 2->24 26 198.133.230.222 WISC-MADISON-AS-UniversityofWisconsinMadisonUS United States 2->26 28 98 other IPs or domains 2->28 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 sora.mips.elf 2->8         started        signatures3 process4 process5 10 sora.mips.elf 8->10         started        12 sora.mips.elf 8->12         started        15 sora.mips.elf 8->15         started        signatures6 17 sora.mips.elf 10->17         started        20 sora.mips.elf 10->20         started        22 sora.mips.elf 10->22         started        40 Sample tries to kill multiple processes (SIGKILL) 12->40 process7 signatures8 30 Sample tries to kill multiple processes (SIGKILL) 17->30
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-09-15 16:06:26 UTC
File Type:
ELF32 Big (Exe)
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrhzugcreiokvjtwpne2at5jik45jehczdivddai2475br4zdu3a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora botnet defense_evasion discovery
Link:
https://tria.ge/reports/260915-tksn6axthx/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Modifies Watchdog functionality
Contacts a large (147803) amount of remote hosts
Creates a large amount of network flows
Malware Config
C2 Extraction:
176.65.139.217
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/8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36

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: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_ea92cca8
Create hunting rule
Author:Elastic Security
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/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf dfa5758cd0b07e380df4a5067a7c18779c1b99f352ae747a25b6fc3f24469d6a

Mirai

elf 8c4f9a1851221caaa6767b49a04fa942b9d490e2c8d1518c08d73fd0c7991d36

(this sample)

  
Dropped by
SHA256 dfa5758cd0b07e380df4a5067a7c18779c1b99f352ae747a25b6fc3f24469d6a
  
URLhaus
https://urlhaus.abuse.ch/url/3917091/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 094f14b8d22fa45ed0fd7ca8fea223ee

Comments