MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91
SHA3-384 hash: 1ad28fb91c92bd38ade277f09f0bcb28efc8a4c05d32dc9c234495cebc8b624039dd98bdcfd135add32d37e8863a9bc8
SHA1 hash: f046c095a025e5fcf7a3361eb6c737f814f65870
MD5 hash: 6bd3493b7d0433f0cb4dc3d83132bef1
humanhash: football-chicken-snake-hawaii
File name:ntarm7
Download: download sample
Signature Mirai
Create hunting rule
File size:59'660 bytes
First seen:2025-12-23 02:43:32 UTC
Last seen:2025-12-23 05:35:34 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:C/0sDlsr1+g7+82gObxqblYOnfSDLRUMU9ypBhdl1:C8sDlsrkg7AdqblYOILRg9ypZl1
TLSH T1E74301B506C78492C5123CB9E5B90E9D2C240EBD9BFD35636D868BA4DC6C5E0D7CEC82
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 UPX
File size (compressed) :59'660 bytes
File size (de-compressed) :155'471 bytes
Format:linux/arm
Unpacked file: 7ac5f59e82588567a1f4724b203416ea1098813e9b4192ca3e9d6e8ef045a3be

Intelligence

File Origin
# of uploads :
4
# of downloads :
42
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/c9287478-11ad-46d2-bdb4-c4993efc9fae/
Detection(s):
SecuriteInfo.com.Linux.Mirai.1424.20745.30919.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
mirai packed upx
Link:
https://www.filescan.io/uploads/694a0202a7163552ba0401e6/reports/f9a66d0d-b70a-4e5d-8bae-a3f7a44b0497/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-23T00:12:00Z UTC
Last seen:
2025-12-23T12:48:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/484c80d8-6453-4900-886c-2c9bfc66f210
Behavior Graph:
Download SVG
%3 guuid=e047017c-1d00-0000-91dc-8fb27e0c0000 pid=3198 /usr/bin/sudo guuid=45df737e-1d00-0000-91dc-8fb2830c0000 pid=3203 /tmp/sample.bin guuid=e047017c-1d00-0000-91dc-8fb27e0c0000 pid=3198->guuid=45df737e-1d00-0000-91dc-8fb2830c0000 pid=3203 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e8ae54ae-4d2f-47ec-bacc-d893a449551e
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1838022
Signature
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838022 Sample: ntarm7.elf Startdate: 23/12/2025 Architecture: LINUX Score: 64 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 94.156.152.67, 18129, 44162 NET1-ASBG Bulgaria 2->21 23 2 other IPs or domains 2->23 25 Multi AV Scanner detection for submitted file 2->25 27 Yara detected Mirai 2->27 29 Sample is packed with UPX 2->29 8 ntarm7.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 signatures5 31 Sample deletes itself 8->31 13 ntarm7.elf 8->13         started        process6 process7 15 ntarm7.elf 13->15         started        17 ntarm7.elf 13->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 02:44:20 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qgvnprwh4e7gtudvsu4yagyuuahejujwhlpttos6zxnrq5dqt2iq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251223-c8drgavkat/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/08abd83b-60e9-4a76-986e-6509c3aac0be
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/81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf 81aad7c6c7e13e69d0759539801b14a00e44d1363adf39ba5ecddb1874709e91

(this sample)

Mirai

elf 7ac5f59e82588567a1f4724b203416ea1098813e9b4192ca3e9d6e8ef045a3be

  
URLhaus
https://urlhaus.abuse.ch/url/3740746/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 7ac5f59e82588567a1f4724b203416ea1098813e9b4192ca3e9d6e8ef045a3be
  
Dropping
MD5 fc71c3ec3ea3e04f15bce38a7117bd3f

Comments