MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92
SHA3-384 hash: c924967862390c7764810ad2aa686a7a61f3d4c1e5fa07e4828b7729ab45970f2d6462eb24f27cf162ded73e3d0e3fc2
SHA1 hash: 8c283a377d17c7593e260ed381a0a819bbad9b2f
MD5 hash: 0e7b58c42c252f00aae7987081ba6492
humanhash: gee-idaho-texas-comet
File name:arm.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:246'192 bytes
First seen:2025-09-23 02:19:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:hGhzTcA6R79GJCcgWZEwxDLfly+6jFJKHRA:yMXt8JCcga3y+6jfKHRA
TLSH T158343A55BC928E9ACAC467B7FB6EC389371717B8D2EA7103CD145760328B41B0E7B981
telfhash t18811c060c94c19ecf9e09469d1ffb5262a2d62a93e1274542eefec8a89329c4341052c
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
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:
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm rust
Link:
https://www.filescan.io/uploads/68d203d8b4f22678f762a5e9/reports/2d6904d6-d76e-484f-84ff-2d41ead10e35/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
90
Number of processes launched:
10
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92
Behaviour
Anti-VM
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-23T00:46:00Z UTC
Last seen:
2025-09-23T00:46:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/369f2e11-4ee7-420b-b4e9-8a4f8cb2ab2b
Behavior Graph:
Download SVG
%3 guuid=dd06b1f3-1800-0000-5b84-d1f330120000 pid=4656 /usr/bin/sudo guuid=85db22f6-1800-0000-5b84-d1f33d120000 pid=4669 /tmp/sample.bin guuid=dd06b1f3-1800-0000-5b84-d1f330120000 pid=4656->guuid=85db22f6-1800-0000-5b84-d1f33d120000 pid=4669 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1b13d62f-9445-432e-9e3e-fd4e65c61b61
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1782353
Signature
Antivirus / Scanner detection for submitted sample
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1782353 Sample: arm.urbotnetisass.elf Startdate: 23/09/2025 Architecture: LINUX Score: 100 66 94.154.35.153, 43212 SELECTELRU Ukraine 2->66 68 109.202.202.202, 80 INIT7CH Switzerland 2->68 70 3 other IPs or domains 2->70 72 Antivirus / Scanner detection for submitted sample 2->72 74 Multi AV Scanner detection for submitted file 2->74 76 Yara detected Gafgyt 2->76 78 Yara detected Mirai 2->78 11 arm.urbotnetisass.elf 2->11         started        15 udisksd dumpe2fs 2->15         started        17 udisksd dumpe2fs 2->17         started        19 482 other processes 2->19 signatures3 process4 file5 58 /root/.bashrc, ASCII 11->58 dropped 60 /etc/rc.local, POSIX 11->60 dropped 62 /etc/profile, ASCII 11->62 dropped 64 /etc/crontab, ASCII 11->64 dropped 82 Sample tries to persist itself using /etc/profile 11->82 84 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 11->84 86 Sample tries to persist itself using cron 11->86 88 Sample tries to persist itself using System V runlevels 11->88 21 arm.urbotnetisass.elf 11->21         started        signatures6 process7 file8 50 /memfd:/usr/lib/librt.so.1 (deleted), ELF 21->50 dropped 52 /memfd:/usr/lib/libpthread.so.0 (deleted), ELF 21->52 dropped 54 /memfd:/usr/lib/libm.so.6 (deleted), ELF 21->54 dropped 56 41 other malicious files 21->56 dropped 80 Writes identical ELF files to multiple locations 21->80 25 arm.urbotnetisass.elf 21->25         started        27 arm.urbotnetisass.elf 21->27         started        29 arm.urbotnetisass.elf 21->29         started        31 arm.urbotnetisass.elf 21->31         started        signatures9 process10 process11 33 arm.urbotnetisass.elf 25->33         started        36 arm.urbotnetisass.elf 27->36         started        38 arm.urbotnetisass.elf 29->38         started        40 arm.urbotnetisass.elf 31->40         started        file12 46 /tmp/.taunt, POSIX 33->46 dropped 48 /tmp/.mock, POSIX 33->48 dropped 42 arm.urbotnetisass.elf 33->42         started        process13 process14 44 arm.urbotnetisass.elf 42->44         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-23 02:20:26 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=rq4nursblyagk45r6nd466u7hxscpmrcid3swescz7yfv6kzh2ja._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/250923-csry6aej7v/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/dadda02d-a99f-4bf1-a62e-55754f7145ab
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/8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92

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_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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 8c38da46415e006573b1f347cf7a9f3de427b22240f72b1242cff05af9593e92

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618222/
  
Delivery method
Distributed via web download

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