MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6
SHA3-384 hash: 0075a220a51f0c27f751ccf0b38d9286cee3affe9f6e82b187f1ba055863034b8c9615aca75d8e9c32a150e754b94b00
SHA1 hash: e2407588de922ffce0b866734cddfbd5603f4ce7
MD5 hash: 86631f8e30978c644b87a80a948df6ea
humanhash: foxtrot-triple-coffee-kansas
File name:ntsh4
Download: download sample
Signature Mirai
Create hunting rule
File size:63'628 bytes
First seen:2025-12-23 02:43:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:maLwtrmUF1QgBVEvKVQHSKthnIC4QHiSKEs/F:mYFULQgrEyV+thnIECBD
TLSH T19D538D73D8396E84D35941B5BC748BB51B63F58481830EFE1A99C2B99047EACF6093F8
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 :
106
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
a c2 socket address and a scan socket address
Link:
https://research.acce.ciphertechsolutions.com/results/c79508b0-306c-4caa-80fa-ee0750281bcb/
Detection(s):
Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Trojan.Generic-9910199-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/694a0204a7163552ba0401e8/reports/41afe804-8931-4b7c-a163-3201c7484e28/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-23T00:45:00Z UTC
Last seen:
2025-12-24T16:53:00Z UTC
Hits:
~100
Detections:
HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/50f16d15-4349-4775-94b2-55f87b0ce2ed
Behavior Graph:
Download SVG
%3 guuid=ace46ca2-1a00-0000-e102-40d70b0a0000 pid=2571 /usr/bin/sudo guuid=c42c20a5-1a00-0000-e102-40d7120a0000 pid=2578 /tmp/sample.bin guuid=ace46ca2-1a00-0000-e102-40d70b0a0000 pid=2571->guuid=c42c20a5-1a00-0000-e102-40d7120a0000 pid=2578 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0522c6eb-4f6a-4cbe-805c-b1df3d9922e8
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1838028
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838028 Sample: ntsh4.elf Startdate: 23/12/2025 Architecture: LINUX Score: 68 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 94.156.152.67, 18129, 34854 NET1-ASBG Bulgaria 2->21 23 2 other IPs or domains 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected Mirai 2->29 8 ntsh4.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 signatures5 31 Sample deletes itself 8->31 13 ntsh4.elf 8->13         started        process6 process7 15 ntsh4.elf 13->15         started        17 ntsh4.elf 13->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 02:44:15 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=w74ebls2xx4pa6q6zeffqqnh7b24z3c4azcif3xi7e25cl44r6ta._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251223-c7v95avjev/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7136288-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7975c560-d9d5-4449-95a9-48dc87196f0a
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/b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 b7f840ae5abdf8f07a1ec90a5841a7f875ccec5c064482eee8f935d12f9c8fa6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3740740/
  
Delivery method
Distributed via web download

Comments