MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434
SHA3-384 hash: 4872e47aade377ddd485a19c13fe1ee35aaf8fb895de9e8dd32979c4a71bb830091d43be31ca081f3292024c03cf5a1c
SHA1 hash: 303017fa04350e7238e0745b78a14697c32f19d2
MD5 hash: 093ce1e69eb30593146e23856bd2c8ab
humanhash: eleven-artist-music-july
File name:Josho.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:128'047 bytes
First seen:2025-12-23 22:59:27 UTC
Last seen:2025-12-25 04:50:07 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:IZMu4C+u2TLhLRE90bYK5h9T96NOU+5/YtM/9gM/:eMu4C+uURfbYK5hb6J+5/AM/9gM/
TLSH T15AC32A46EA408B13C5D61777FAAF414A3322DB54D3DB330689285BF43F87A9E0E57A06
telfhash t1c121e4b1471a56246665cfec8ddd73aa022c83155386df33df21c4ec640909de535c8f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
42
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/d34665ad-ff0b-4bb9-a38b-c3574f26291e/
Detection(s):
Unix.Dropper.Mirai-7135890-0
Create hunting rule

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

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

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

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

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-23T20:07:00Z UTC
Last seen:
2025-12-24T14:14:00Z UTC
Hits:
~100
Detections:
HEUR:Backdoor.Linux.Mirai.ba HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Mirai.au
Link:
https://opentip.kaspersky.com/d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3d8b8e72-c9c7-4bfd-9934-0cf43db1da6d
Behavior Graph:
Download SVG
%3 guuid=cf5b987c-1a00-0000-68cd-f3018e0a0000 pid=2702 /usr/bin/sudo guuid=eee4667e-1a00-0000-68cd-f301940a0000 pid=2708 /tmp/sample.bin guuid=cf5b987c-1a00-0000-68cd-f3018e0a0000 pid=2702->guuid=eee4667e-1a00-0000-68cd-f301940a0000 pid=2708 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0e78a5cf-6343-4885-901f-08f3d755ab27
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1838539
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838539 Sample: Josho.arm7.elf Startdate: 24/12/2025 Architecture: LINUX Score: 68 48 80.242.166.232 VERSATELDE Germany 2->48 50 210.131.197.154 VECTANTARTERIANetworksCorporationJP Japan 2->50 52 99 other IPs or domains 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 Contains symbols with names commonly found in malware 2->58 10 Josho.arm7.elf 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        16 python3.8 dpkg 2->16         started        signatures3 process4 process5 18 Josho.arm7.elf 10->18         started        20 Josho.arm7.elf 10->20         started        22 Josho.arm7.elf 10->22         started        process6 24 Josho.arm7.elf 18->24         started        26 Josho.arm7.elf 18->26         started        28 Josho.arm7.elf 20->28         started        30 Josho.arm7.elf 20->30         started        32 Josho.arm7.elf 20->32         started        process7 34 Josho.arm7.elf 24->34         started        36 Josho.arm7.elf 24->36         started        38 Josho.arm7.elf 24->38         started        40 Josho.arm7.elf 28->40         started        42 Josho.arm7.elf 28->42         started        process8 44 Josho.arm7.elf 34->44         started        46 Josho.arm7.elf 34->46         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 13:53:45 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2srid6mgkk4f6e6noxwr26v2sgsk7hswgfc75xzici6dbdvvkq2a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:josho defense_evasion discovery
Link:
https://tria.ge/reports/251223-2y9tlaxncv/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Modifies Watchdog functionality
Contacts a large (173300) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135890-0
YARA:
n/a
Link:
https://app.threat.zone/submission/94ea654d-3690-430a-864c-4082e4b11db2
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/d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434

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:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 d4a281f98652b85f13cd75ed1d7aba91a4af9e563145fedf28123c308eb55434

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3741697/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3742540/
  
URLhaus
https://urlhaus.abuse.ch/url/3742563/

Comments