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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5
SHA3-384 hash: 54fe3a1331acc9758d34bfc3c0c467bb31736ef33260637b1c6348d61fff4e5482f75140d5e1591c72390c7a91e56939
SHA1 hash: 136c25268fd60d5255e662d2664349e9e4c6f996
MD5 hash: 65504589fc6e968e8d20714053ab7504
humanhash: jersey-missouri-music-sweet
File name:armv7l
Download: download sample
Signature Mirai
Create hunting rule
File size:153'580 bytes
First seen:2025-08-01 23:15:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:DESReILBmG6ycmMgvnK4icwY/6QBuG/vtDxNamRmwplWh94MNgI7XqnIiqlmTi:DESReILBmGUmMoicwYxR/FVNaSlplWhw
TLSH T13BE3075AFD42AF00D5D626FAFA0E428973670B6CE3FE71129E245F2527CA91B0F36501
telfhash t1c311cb309f08186cabe5d0a6d1fea63676ac71da62011158ac6e93434a73cc6301c80d
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
29
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Creating a file
Runs as daemon
Sets a written file as executable
Kills processes
Sends data to a server
Connection attempt
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/688d4accdc44c87d077a7858/reports/402225d0-40b5-4794-aca1-e6a39712d229/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
157
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5
Behaviour
Persistence
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1c28b518-60fa-4ad9-9fe6-dff5d9d13969
Behavior Graph:
Download SVG
%3 guuid=5465acdd-1900-0000-8994-44da040d0000 pid=3332 /usr/bin/sudo guuid=cff3afe0-1900-0000-8994-44da0c0d0000 pid=3340 /tmp/sample.bin guuid=5465acdd-1900-0000-8994-44da040d0000 pid=3332->guuid=cff3afe0-1900-0000-8994-44da0c0d0000 pid=3340 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fa1aa89f-e5dd-433a-90bf-9c5bd5f40d45
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1748847
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Sample deletes itself
Sample tries to kill multiple processes (SIGKILL)
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1748847 Sample: armv7l.elf Startdate: 02/08/2025 Architecture: LINUX Score: 88 34 92.113.21.114, 5060, 58262, 58264 UKRTELNETUA Ukraine 2->34 36 Antivirus detection for dropped file 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 Yara detected Mirai 2->40 9 armv7l.elf 2->9         started        11 gnome-session-binary sh gsd-print-notifications 2->11         started        13 systemd journalctl 2->13         started        15 56 other processes 2->15 signatures3 process4 process5 17 armv7l.elf 9->17         started        19 gsd-print-notifications 11->19         started        process6 21 armv7l.elf 17->21         started        25 gsd-print-notifications gsd-printer 19->25         started        file7 30 /var/main, ELF 21->30 dropped 32 /etc/init.d/xs.main, POSIX 21->32 dropped 42 Sample tries to set files in /etc globally writable 21->42 44 Drops files in suspicious directories 21->44 46 Sample deletes itself 21->46 27 armv7l.elf 21->27         started        signatures8 process9 signatures10 48 Sample tries to kill multiple processes (SIGKILL) 27->48
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-01 23:16:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zvzrx2gpbgnhqoblya52p2mouzvtqyzuxl5oknz6ffnnl3itmtkq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/250801-289xcahj5s/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Modifies init.d
Deletes itself
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b456fb86-5c97-477e-822a-900c27be9613
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/cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 cd731be8cf099a78382bc03ba7e98ea66b386334bafae5373e295ad5ed1364d5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3593726/
  
Delivery method
Distributed via web download

Comments