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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983
SHA3-384 hash: fe52ceb8c412debf7895b6099a54eed526d579c01f5778946426486906b668d5d6cd93d7050d2ca4dd8b38de28a48a43
SHA1 hash: 4b053019766c9f026d51c094fc3d0b63519a4315
MD5 hash: 5c122bbff09f9086870a7b35b07200aa
humanhash: mississippi-floor-nevada-cat
File name:obn2b6lh
Download: download sample
Signature Mirai
Create hunting rule
File size:79'516 bytes
First seen:2026-09-03 05:39:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:vF4SbZ1vu/eImqiN68C3B9ISwjQw6iXLaFvRpdyTJtYTovN7UKKvm/4rz:xbZ1vu/eImo8+Bg6iXLiQJiMv99oz
TLSH T105732989AEA10FDBC46FCE70475F430725EC4D9E82E2633A117CDC4872AE64586E3D88
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sets a written file as executable
Creating a file
Sends data to a server
Creating a file in the %temp% directory
Runs as daemon
Opens a port
Launching a process
Mounts file systems
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6a990849be0a082c4e5d8df0/reports/a4d608ac-66de-4f86-af13-c337b95d0f5e/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-09-01T13:52:00Z UTC
Last seen:
2026-09-03T00:16:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/bae4180e-bf30-478a-8ab9-ebec2226f5f0
Behavior Graph:
Download SVG
%3 guuid=2f8196f6-1900-0000-9b4d-5339070a0000 pid=2567 /usr/bin/sudo guuid=205289f9-1900-0000-9b4d-5339100a0000 pid=2576 /tmp/sample.bin guuid=2f8196f6-1900-0000-9b4d-5339070a0000 pid=2567->guuid=205289f9-1900-0000-9b4d-5339100a0000 pid=2576 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d0f6a933-df4e-4a21-a5c0-e239ecc9fb6b
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1967796
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops invisible ELF files
Executes itself again with its parent PID as an argument (indicative of hampering debugging)
Multi AV Scanner detection for submitted file
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1967796 Sample: obn2b6lh.elf Startdate: 03/09/2026 Architecture: LINUX Score: 76 53 212.53.40.43, 3478, 37060 TARIORU Russia 2->53 55 5.39.72.109, 3478, 55659 OVHFR France 2->55 57 11 other IPs or domains 2->57 59 Antivirus detection for dropped file 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 Multi AV Scanner detection for submitted file 2->63 10 obn2b6lh.elf 2->10         started        12 udisksd dumpe2fs 2->12         started        14 udisksd dumpe2fs 2->14         started        signatures3 process4 process5 16 obn2b6lh.elf 10->16         started        process6 18 obn2b6lh.elf sh 16->18         started        20 obn2b6lh.elf sh 16->20         started        22 obn2b6lh.elf 16->22         started        24 7 other processes 16->24 signatures7 27 sh cp 18->27         started        31 sh rm 18->31         started        33 sh cp 20->33         started        35 sh rm 20->35         started        37 obn2b6lh.elf sh 22->37         started        65 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 24->65 39 sh chmod 24->39         started        41 sh chmod 24->41         started        43 sh rm 24->43         started        45 8 other processes 24->45 process8 file9 49 /root/.cling, ELF 27->49 dropped 67 Writes identical ELF files to multiple locations 27->67 69 Drops invisible ELF files 27->69 51 /usr/local/bin/.cling, ELF 33->51 dropped 71 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 37->71 47 sh mount 37->47         started        signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-09-02 02:52:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrhhidohtssmthth2pgpamfbzymiap6mgdkjjao6e76spkhs3gbq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery persistence
Link:
https://tria.ge/reports/260903-gc194saq6w/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Write file to user bin folder
File and Directory Permissions Modification
Modifies Watchdog functionality
Please note that we are no longer able to provide a coverage score for Virus Total.

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_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 8c4e740dc79ca4c99e67d3ccf030a1ce18803fcc30d49481de27fd27a8f2d983

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3911791/
  
Delivery method
Distributed via web download

Comments