MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b
SHA3-384 hash: e8975a8b1995ab86a8c46be5c379fbd76d2b48a02de0061ce1577008d2664004c207c7f3dbe1d8068739db6d2daf8f4b
SHA1 hash: bfe37e6240f69ea0c88e339ab0ced133223d5b84
MD5 hash: bd581dc39d35c5b50012d6191766028a
humanhash: mountain-eight-maine-paris
File name:.rsysl
Download: download sample
Signature Mirai
Create hunting rule
File size:167'896 bytes
First seen:2025-08-03 07:20:30 UTC
Last seen:2025-08-20 21:05:24 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:ujrl26xPdRHOirOa+acnJ95z3gfro3tQ6HyIcM/9sFrrf1nHO:Orl2adRu6Oa+acnJ95LgctQ6HynM/9sC
TLSH T160F33B47FB414A13C4D61B7ABA9B42453323AB64D3EB33059928AFF43F8679E0E63505
telfhash t1cb312b7167351228aeb1d864dcec97b2512a87121305ef32df36c08c241e09ae63ac0f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
27
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135925-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Changes access rights for a file
Sets a written file as executable
Receives data from a server
Launching a process
Connection attempt
DNS request
Changes access rights for a written file
Kills processes
Runs as daemon
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc lolbin mirai obfuscated remote
Link:
https://www.filescan.io/uploads/688f0e0132e61090868b8c0d/reports/09d02b46-c0cd-4b93-83c1-b35c1f92f427/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
135
Number of processes launched:
6
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Mirai 196.251.115.36:2004
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fa35f204-51b8-44c6-a5e6-20ddf3bc2074
Behavior Graph:
Download SVG
%3 guuid=ecd80296-1a00-0000-9bf8-50e0170b0000 pid=2839 /usr/bin/sudo guuid=48f33198-1a00-0000-9bf8-50e01d0b0000 pid=2845 /tmp/sample.bin guuid=ecd80296-1a00-0000-9bf8-50e0170b0000 pid=2839->guuid=48f33198-1a00-0000-9bf8-50e01d0b0000 pid=2845 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dca1ed2a-7eb8-4aa6-aa0d-e0f6e7f69b9a
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1749347
Signature
Drops files in suspicious directories
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1749347 Sample: .rsysl.elf Startdate: 03/08/2025 Architecture: LINUX Score: 68 38 top1miku.duckdns.org 2->38 40 top1miku.duckdns.org 196.251.115.36, 2004, 49938, 49942 xneeloZA Seychelles 2->40 42 4 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 10 .rsysl.elf 2->10         started        12 gnome-session-binary sh gsd-rfkill 2->12         started        14 dash rm 2->14         started        16 5 other processes 2->16 signatures3 46 Uses dynamic DNS services 38->46 process4 process5 18 .rsysl.elf 10->18         started        20 .rsysl.elf 10->20         started        process6 22 .rsysl.elf 18->22         started        file7 34 /etc/init.d/sysd, POSIX 22->34 dropped 48 Sample tries to set files in /etc globally writable 22->48 50 Drops files in suspicious directories 22->50 52 Sample tries to persist itself using System V runlevels 22->52 26 .rsysl.elf sh 22->26         started        28 .rsysl.elf 22->28         started        signatures8 process9 process10 30 sh cp 26->30         started        file11 36 /usr/bin/.sh, ELF 30->36 dropped 54 Drops invisible ELF files 30->54 56 Drops files in suspicious directories 30->56 signatures12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-03 05:43:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oono6b6vjseyldlbpxh2ujnej2s5fd3v56vvyfhyqtj3rhbedanq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery execution persistence
Link:
https://tria.ge/reports/250803-h6vj4aak9t/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Malware Config
C2 Extraction:
top1miku.duckdns.org
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135925-0
YARA:
n/a
Link:
https://app.threat.zone/submission/ff2ab659-6c57-4f3b-8cb9-efbc2d5c3872
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/739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b

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: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 739aef07d54c89858d617dcfaa25a44ea5d28f75efab5c14f884d3b89c24181b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3595565/
  
Delivery method
Distributed via web download

Comments