MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded. 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: 4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded
SHA3-384 hash: cfcb5cec3764ff540f11e1d8d8973068bf86d7fd117d644f5d99bf710637b891b583e3b788761d801c49e2374b92c8f2
SHA1 hash: 1b2f462b0923c8bb15e2577df07a4327df300635
MD5 hash: 232b595022b949c4f246cd876dc750d3
humanhash: butter-apart-asparagus-cola
File name:arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:34'740 bytes
First seen:2025-12-27 22:24:54 UTC
Last seen:2025-12-28 21:59:32 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:s3pLpba4gEur4Gp0ljiM2rfY3DoUhlhFKe+yB798s3Uoza:sxhur4NurfzUV9n95za
TLSH T1CDF2E05460862841CB7164B4DF39CFD24BAB4A6AD3F97770B17183A4F58231672F868F
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) :34'740 bytes
File size (de-compressed) :88'168 bytes
Format:linux/arm
Unpacked file: 883f3a3b8e584acabb9259ab7a13d448988c4b3100904502b6f1edd31cc5f06e

Intelligence

File Origin
# of uploads :
2
# of downloads :
54
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/0776b31a-ec50-4fe0-9419-fe560dd9e187/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/69505cc984afa5547b5ee33f/reports/2538fb53-1616-4723-9450-e9bc7cc038cc/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-27T20:58:00Z UTC
Last seen:
2025-12-27T21:16:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ff007dfa-9136-4079-8f13-34cf794b5f4d
Behavior Graph:
Download SVG
%3 guuid=2fcb3122-1a00-0000-4a1a-a553b10a0000 pid=2737 /usr/bin/sudo guuid=1ed46424-1a00-0000-4a1a-a553b70a0000 pid=2743 /tmp/sample.bin guuid=2fcb3122-1a00-0000-4a1a-a553b10a0000 pid=2737->guuid=1ed46424-1a00-0000-4a1a-a553b70a0000 pid=2743 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/57a9cda2-f933-44ce-bc84-5f12ec16ecbe
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1840526
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-27 22:25:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jntpqy6qivuvp7bhg7kbhnlv5uapvxk52n2wbn3hgcmay2yqpxwq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251227-2c9xgaap9v/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5b2fe0a3-9c4d-40b3-9c98-1024dc50a605
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded

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: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 4b66f863d0456957fc2737d413b575ed00fadd5dd37560b76730980c6b107ded

(this sample)

Mirai

elf 883f3a3b8e584acabb9259ab7a13d448988c4b3100904502b6f1edd31cc5f06e

  
URLhaus
https://urlhaus.abuse.ch/url/3719332/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 883f3a3b8e584acabb9259ab7a13d448988c4b3100904502b6f1edd31cc5f06e
  
Dropping
MD5 ab9c551d2e28dab049ca0001ed7a0ebd

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