MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60
SHA3-384 hash: fee3e5cadb4800b22f86f62a61c22989b41e29b26e4a508b96a629502d38c7ecc61dffc22d900a94539a49c1880d6db4
SHA1 hash: 23e304256297e1eb86b1d3d17403da942c5994fa
MD5 hash: 95df257330a09f4873f7af16063ac6df
humanhash: mississippi-snake-spaghetti-rugby
File name:arm7.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:321'552 bytes
First seen:2025-09-19 09:31:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:wVEx8/u4+4JH7K7JRKHvQicRicFm3xf9MmSaPdg8T5G4P3e1sZCgQYdYRAM/:Svm54JHSSvuRizPSalg8T5G4P3/cgBdh
TLSH T1CC644B56EC51CA56D5D526FABBBEC28933532BB8C3FA3012CD105F60238A59B0F77A41
telfhash t12e21125c0c2c58a8f2e59dece09e991439291db57b1631a61cff91cea322cf428f1c2d
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
31
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Deletes a file
Changes the time when the file was created, accessed, or modified
Changes owner for a written file
Deleting a recently created file
Collects information on the network activity
Creating a file in the %temp% directory
Sends data to a server
Receives data from a server
Connection attempt
Kills processes
Unmounts file systems
Creating a file
Sets a written file as executable
Launching a process
Mounts file systems
Runs as daemon
Manages services
Changes access rights for a written file
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Deletes a system binary file
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm gcc rust
Link:
https://www.filescan.io/uploads/68cd231773af424b47e753aa/reports/84b99454-e8ce-41da-86aa-a6e1c2026db5/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-19T06:38:00Z UTC
Last seen:
2025-09-19T06:38:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/bc7e614e-9a28-4944-ad70-22493243981c
Behavior Graph:
Download SVG
%3 guuid=7f38b715-1700-0000-68b8-d7d78e0c0000 pid=3214 /usr/bin/sudo guuid=822b0818-1700-0000-68b8-d7d7930c0000 pid=3219 /tmp/sample.bin guuid=7f38b715-1700-0000-68b8-d7d78e0c0000 pid=3214->guuid=822b0818-1700-0000-68b8-d7d7930c0000 pid=3219 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3d133d65-712d-4c79-8d7f-c93ee72bb1c7
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1780631
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Writes identical ELF files to multiple locations
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1780631 Sample: arm7.urbotnetisass.elf Startdate: 19/09/2025 Architecture: LINUX Score: 100 95 94.154.35.153, 43212, 55188 SELECTELRU Ukraine 2->95 99 Antivirus detection for dropped file 2->99 101 Antivirus / Scanner detection for submitted sample 2->101 103 Multi AV Scanner detection for submitted file 2->103 105 Yara detected Mirai 2->105 12 arm7.urbotnetisass.elf 2->12         started        16 udisksd dumpe2fs 2->16         started        18 udisksd dumpe2fs 2->18         started        20 30 other processes 2->20 signatures3 process4 file5 91 /etc/profile, ASCII 12->91 dropped 93 /etc/crontab, ASCII 12->93 dropped 131 Sample tries to persist itself using /etc/profile 12->131 133 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 12->133 135 Sample tries to persist itself using cron 12->135 137 Sample tries to persist itself using System V runlevels 12->137 22 arm7.urbotnetisass.elf 12->22         started        signatures6 process7 file8 79 /usr/bin/uraskid, ELF 22->79 dropped 81 /root/.bashrc, ASCII 22->81 dropped 83 /root/.bash_profile, ASCII 22->83 dropped 85 47 other malicious files 22->85 dropped 123 Sample tries to set files in /etc globally writable 22->123 125 Writes identical ELF files to multiple locations 22->125 127 Drops files in suspicious directories 22->127 129 2 other signatures 22->129 26 arm7.urbotnetisass.elf sh 22->26         started        28 arm7.urbotnetisass.elf sh 22->28         started        30 arm7.urbotnetisass.elf sh 22->30         started        32 8 other processes 22->32 signatures9 process10 file11 36 sh cp 26->36         started        39 sh crontab 28->39         started        42 sh 28->42         started        44 sh cp 30->44         started        77 /etc/sedfsUoHK, POSIX 32->77 dropped 97 Sample tries to persist itself using System V runlevels 32->97 46 arm7.urbotnetisass.elf 32->46         started        48 sh cp 32->48         started        50 sh systemctl 32->50         started        52 3 other processes 32->52 signatures12 process13 file14 107 Writes identical ELF files to multiple locations 36->107 109 Drops invisible ELF files 36->109 111 Drops files in suspicious directories 36->111 87 /var/spool/cron/crontabs/tmp.niNF6Z, ASCII 39->87 dropped 113 Sample tries to persist itself using cron 39->113 115 Executes the "crontab" command typically for achieving persistence 39->115 54 sh crontab 42->54         started        57 sh grep 42->57         started        89 /usr/bin/.sh, ELF 44->89 dropped 117 Sample reads /proc/mounts (often used for finding a writable filesystem) 46->117 119 Deletes system log files 46->119 59 arm7.urbotnetisass.elf 46->59         started        61 arm7.urbotnetisass.elf 46->61         started        63 arm7.urbotnetisass.elf 46->63         started        67 8 other processes 46->67 65 systemctl systemd-sysv-install 50->65         started        signatures15 process16 signatures17 121 Executes the "crontab" command typically for achieving persistence 54->121 69 systemd-sysv-install update-rc.d 65->69         started        71 systemd-sysv-install getopt 65->71         started        73 systemd-sysv-install update-rc.d 65->73         started        process18 process19 75 update-rc.d systemctl 69->75         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60/
Verdict:
Malicious
Threat:
Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-19 09:32:46 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vi3tju74acy3uwbntmv2eug3e4zu4wyjjuoeb3tcendbjl5pzzqa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/250919-lhklrsgn6t/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/db206727-b5ac-4be6-9812-3a302e3faaf4
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/aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Mirai

elf aa3734d3fc00b1ba582d9b2ba250db27334e5b094d1c40ee62234614afafce60

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618219/
  
Delivery method
Distributed via web download

Comments