MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037
SHA3-384 hash: 8c49810f776d8b2e8ebc5953fa72ecbcfe5c02edbdff4422525b3a6ac82098462e299e5571c41387c3a171ddd0b28340
SHA1 hash: 7c3d3dd043b5ff31aebec14b14be9c498b6679d1
MD5 hash: 42b2d15d32b87dfbab5daf1b76d7ce76
humanhash: beer-island-india-romeo
File name:morte.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:127'760 bytes
First seen:2025-03-23 14:26:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:SaChwt50KbR+qmDVzLC3NKyzVghkeAYUH0fWH8UWs63Q7Ckjcm6l61d6VXW:SPhEdvmDV/KUy5epGWWHuB3y3640X
TLSH T180C37C73CC256E69D664D1B8B070CFB81F53A52481875FBE56AAC2B48047D8DFA093B8
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 :
98
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e195cdbb84e066269e89b3linux22vpnfull_triage
Tags:
mirai
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/67e01a3c195c2ecf47ef9e40/reports/a82027be-4efc-48e9-9820-f919c525b70c/overview
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/83bd703f-7728-49e1-a388-ebf0583a0139
Result
Threat name:
Gafgyt, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1646185
Signature
Multi AV Scanner detection for submitted file
Reads system files that contain records of logged in users
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Yara detected Gafgyt
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1646185 Sample: morte.sh4.elf Startdate: 23/03/2025 Architecture: LINUX Score: 84 77 176.65.142.252, 46292, 7575 WEBTRAFFICDE Germany 2->77 79 109.202.202.202, 80 INIT7CH Switzerland 2->79 81 4 other IPs or domains 2->81 87 Multi AV Scanner detection for submitted file 2->87 89 Yara detected Okiru 2->89 91 Yara detected Gafgyt 2->91 11 systemd gdm3 2->11         started        13 systemd gpu-manager 2->13         started        15 morte.sh4.elf 2->15         started        17 21 other processes 2->17 signatures3 process4 file5 21 gdm3 gdm-session-worker 11->21         started        35 3 other processes 11->35 23 gpu-manager sh 13->23         started        25 gpu-manager sh 13->25         started        27 gpu-manager sh 13->27         started        37 5 other processes 13->37 29 morte.sh4.elf 15->29         started        75 /var/log/wtmp, data 17->75 dropped 83 Sample reads /proc/mounts (often used for finding a writable filesystem) 17->83 85 Reads system files that contain records of logged in users 17->85 31 accounts-daemon language-validate 17->31         started        33 generate-config pkill 17->33         started        signatures6 process7 process8 39 gdm-session-worker gdm-wayland-session 21->39         started        41 sh grep 23->41         started        43 sh grep 25->43         started        45 sh grep 27->45         started        47 morte.sh4.elf 29->47         started        50 morte.sh4.elf 29->50         started        52 language-validate language-options 31->52         started        54 sh grep 37->54         started        56 4 other processes 37->56 signatures9 58 gdm-wayland-session dbus-daemon 39->58         started        61 gdm-wayland-session dbus-run-session 39->61         started        95 Sample tries to kill a massive number of system processes 47->95 97 Sample tries to kill multiple processes (SIGKILL) 47->97 63 language-options sh 52->63         started        process10 signatures11 93 Sample reads /proc/mounts (often used for finding a writable filesystem) 58->93 65 dbus-daemon 58->65         started        67 dbus-run-session dbus-daemon 61->67         started        69 sh locale 63->69         started        71 sh grep 63->71         started        process12 process13 73 dbus-daemon false 65->73         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-03-23 14:12:07 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cmpzgz3a4dll3curozp56y54kwtgr536axugxiu6csxcmuiyya3q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd linux
Link:
https://tria.ge/reports/250323-rsfnfsxl18/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135898-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5bb6f86d-9d95-42dc-ba59-4cb33553f3d0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037

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:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
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 131f936760e0d6bd8a91765fdf63bc55a668f77e05e86ba29e14ae265118c037

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3464809/
  
Delivery method
Distributed via web download

Comments