MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea
SHA3-384 hash: deecb6999e13c65e274f33773a2a12ceb889466f8dbe9256f401a81fcb0b9f6bc3f93ab811948c99851fb91cf08093a7
SHA1 hash: d6ad81bf6c9c5155bd3e92f5c8acb8c8a1dd0b72
MD5 hash: ef852fcaff21caa49449295535a56bef
humanhash: apart-utah-freddie-pluto
File name:aarch64
Download: download sample
Signature Mirai
Create hunting rule
File size:126'860 bytes
First seen:2026-01-02 01:29:31 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:kOPFh+KjD6d6f9nB7vec+GExImgbc4EfjLtn5UPz:jFYRonBi9GQtEmPg7
TLSH T182C312DCA81B642AF1C66777859E4BBDE992C73F9B8B1307AC8CF6CC2E440144E65117
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 UPX
File size (compressed) :126'860 bytes
File size (de-compressed) :297'216 bytes
Format:linux/arm64
Unpacked file: 3163c78f178aa5cc394efc4a067c4d7296a9800d7480eb58e50d6a450d4b32d2

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b124771d-b7b0-451a-9bc0-6f898c170d7d/
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/69571fa42fb7bb52ca84596b/reports/1b406848-9be3-44a4-a403-612eb5c02a53/overview
Verdict:
Unknown
File Type:
elf.64.le
First seen:
2026-01-01T19:55:00Z UTC
Last seen:
2026-01-01T20:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b253807c-13cb-4907-baa8-080d3d3cc96a
Behavior Graph:
Download SVG
%3 guuid=b03a1b9f-1600-0000-91cc-36cdbf0c0000 pid=3263 /usr/bin/sudo guuid=7eadd8a1-1600-0000-91cc-36cdca0c0000 pid=3274 /tmp/sample.bin guuid=b03a1b9f-1600-0000-91cc-36cdbf0c0000 pid=3263->guuid=7eadd8a1-1600-0000-91cc-36cdca0c0000 pid=3274 execve
Malware family:
Gafgyt
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9afc96d6-aa8e-422f-93cb-5b9f87001328
Result
Threat name:
n/a
Detection:
suspicious
Classification:
evad
Score:
22 / 100
Link:
https://www.joesandbox.com/analysis/1843395
Signature
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1843395 Sample: aarch64.elf Startdate: 02/01/2026 Architecture: LINUX Score: 22 14 169.254.169.254, 80 USDOSUS Reserved 2->14 16 91.92.240.38, 37746, 443 THEZONEBG Bulgaria 2->16 18 4 other IPs or domains 2->18 20 Sample is packed with UPX 2->20 6 dash rm 2->6         started        8 dash rm 2->8         started        10 python3.8 dpkg 2->10         started        12 aarch64.elf 2->12         started        signatures3 process4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea/
Threat name:
Linux.Backdoor.DarkDDoSer
Create hunting rule
Status:
Suspicious
First seen:
2026-01-02 01:30:10 UTC
File Type:
ELF64 Little (SO)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ws2kzksn5vboewlx22yrysal74ywtpkv3illnbisn52dfnjl73va._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/260102-bw2r4asncx/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/189e8679-66d9-4d44-adbf-336af8d3cffb
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/b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea

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 b4b4acaa4ded42e25977d6b11c480bff3169bd55da16b685126f7432b52bfeea

(this sample)

Mirai

elf 3163c78f178aa5cc394efc4a067c4d7296a9800d7480eb58e50d6a450d4b32d2

  
URLhaus
https://urlhaus.abuse.ch/url/3748050/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 3163c78f178aa5cc394efc4a067c4d7296a9800d7480eb58e50d6a450d4b32d2
  
Dropping
MD5 74b87e9677b43920288dc1f0e453367b

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