MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335
SHA3-384 hash: 10cb2359a151c815135fadef6e180fb73a448c99c4098ab6eeb18bf0f816827cadb84e788b8bda52724f8d560af2d62c
SHA1 hash: b8b673f04f96c75a4231c190034a23884e8905d2
MD5 hash: 1e0a7ce58b09ff87faa567ea314f656c
humanhash: uranus-missouri-helium-indigo
File name:m9x7k2v8b3.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:88'144 bytes
First seen:2026-01-01 08:06:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:trDmwmxI4hK7FgC3qxjTCl7JRt0UR8uzDTn7CsHqIWP:trDGDhK7iC3YTCzRtSuzDTnmqqIWP
TLSH T179832A077980C0FEC49AD0744BBF7136D423B4BE1379B29A63D9EE262A09EE01F19755
telfhash t16f2124383dae2a6460ff6f7ba316d1d454202a6019e274e69d7758f7cf1b3850ce50a3
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 c032550cc344c3f14b7c564ea58a3c5159ed4e8edb4266f59bfc3e7e8a13ea9e
File size (compressed) :42'452 bytes
File size (de-compressed) :88'144 bytes
Format:linux/amd64
Packed file: c032550cc344c3f14b7c564ea58a3c5159ed4e8edb4266f59bfc3e7e8a13ea9e

Intelligence

File Origin
# of uploads :
1
# of downloads :
52
Origin country :
NL NL
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/8a297549-3b40-4407-b729-959a1e6c5318/
Detection(s):
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

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/69562b377d55b68cb20cacc0/reports/7c5b6c0f-0e9b-4d15-a37e-6facf956081b/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-01T05:17:00Z UTC
Last seen:
2026-01-02T23:37:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r 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/4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/35a634b5-fa0f-4d3b-9007-372a8318c8ef
Behavior Graph:
Download SVG
%3 guuid=17667cd6-1b00-0000-0461-5ae3450c0000 pid=3141 /usr/bin/sudo guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149 /tmp/sample.bin net guuid=17667cd6-1b00-0000-0461-5ae3450c0000 pid=3141->guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=9b50fed8-1b00-0000-0461-5ae34f0c0000 pid=3151 /tmp/sample.bin guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149->guuid=9b50fed8-1b00-0000-0461-5ae34f0c0000 pid=3151 clone guuid=58a28d03-1d00-0000-0461-5ae3750e0000 pid=3701 /tmp/sample.bin guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149->guuid=58a28d03-1d00-0000-0461-5ae3750e0000 pid=3701 clone guuid=8ece9803-1d00-0000-0461-5ae3770e0000 pid=3703 /tmp/sample.bin dns net send-data zombie guuid=e340e0d8-1b00-0000-0461-5ae34d0c0000 pid=3149->guuid=8ece9803-1d00-0000-0461-5ae3770e0000 pid=3703 clone guuid=a37f05d9-1b00-0000-0461-5ae3510c0000 pid=3153 /tmp/sample.bin guuid=9b50fed8-1b00-0000-0461-5ae34f0c0000 pid=3151->guuid=a37f05d9-1b00-0000-0461-5ae3510c0000 pid=3153 clone guuid=789808d9-1b00-0000-0461-5ae3520c0000 pid=3154 /tmp/sample.bin dns net send-data zombie guuid=9b50fed8-1b00-0000-0461-5ae34f0c0000 pid=3151->guuid=789808d9-1b00-0000-0461-5ae3520c0000 pid=3154 clone guuid=789808d9-1b00-0000-0461-5ae3520c0000 pid=3154->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 38B 852eada3-51ac-5275-909a-778490b5e6b0 play.mclighthouse.ir:6742 guuid=789808d9-1b00-0000-0461-5ae3520c0000 pid=3154->852eada3-51ac-5275-909a-778490b5e6b0 send: 6B guuid=8ece9803-1d00-0000-0461-5ae3770e0000 pid=3703->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 38B guuid=8ece9803-1d00-0000-0461-5ae3770e0000 pid=3703->852eada3-51ac-5275-909a-778490b5e6b0 send: 6B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f76de846-614f-41d5-9b20-43a5385c0be3
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1843048
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1843048 Sample: m9x7k2v8b3.x86_64.elf Startdate: 01/01/2026 Architecture: LINUX Score: 64 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 8 m9x7k2v8b3.x86_64.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 m9x7k2v8b3.x86_64.elf 8->16         started        18 m9x7k2v8b3.x86_64.elf 8->18         started        20 m9x7k2v8b3.x86_64.elf 8->20         started        process6 22 m9x7k2v8b3.x86_64.elf 16->22         started        24 m9x7k2v8b3.x86_64.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-01 08:07:22 UTC
File Type:
ELF64 Little (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j3257lfiifais6aw66p4rgmkkmuasilfpmh3r5ksxsoblvnaim2q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/260101-jzn96sek7t/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_6a77af0f Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/91bb3cd4-3f72-469a-b7d5-dbb8c4f0d267
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ef5dfaca841/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335

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: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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
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 c032550cc344c3f14b7c564ea58a3c5159ed4e8edb4266f59bfc3e7e8a13ea9e

Mirai

elf 4ef5dfaca84140897816f79fc8998a53280921657b0fb8f552bc9c15d5a04335

(this sample)

  
Dropped by
SHA256 c032550cc344c3f14b7c564ea58a3c5159ed4e8edb4266f59bfc3e7e8a13ea9e
  
URLhaus
https://urlhaus.abuse.ch/url/3747887/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 f00652dc89beaae9e8aea560bfd24931

Comments