MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2. 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: 8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2
SHA3-384 hash: 76b3ae86dfdbff0f6fdf4dc0c11e35e092bac097d0bcb3bf3d0a42eb323493c56c266748ccf3d2bb945dcb786362ce77
SHA1 hash: 61b8f9acafbf8a62b68e818ab8494acd66b27918
MD5 hash: 950096192dcd7934566ad65dd09af192
humanhash: fix-monkey-oven-oscar
File name:nwfaiehg4ewijfgriehgirehaughrarg.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:41'916 bytes
First seen:2025-12-06 19:40:59 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:2q6H1Y2jiF1D/2hsOjH/1pDrKYT46e0l4ZA8VslyIpxx07q2:YVNq2hsOjH9thT46xl0V2/HOq2
TLSH T1B813E1B502A62478C428CA7DC46E5300ED77083661E36B5F427376AFACE358F3634AD5
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) :41'916 bytes
File size (de-compressed) :85'792 bytes
Format:linux/amd64
Unpacked file: 4a3eb597358d6660f285fe7c8edddc2002b3c90db234ed6c80b8ea2b0b23801a

Intelligence

File Origin
# of uploads :
1
# of downloads :
33
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/cfaf9b8f-d6b3-4e87-8b1f-7950ae040bdb/
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/693486f5bba50eaf042487c3/reports/c87f280c-b4a1-4a50-a228-b58d22b99e14/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-12-06T17:52:00Z UTC
Last seen:
2025-12-06T21:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b7a62cd-514a-4cbc-8352-39176ee5e40a
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1828119
Signature
Deletes system log files
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-06 19:41:39 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnam4bcsiwbnyeuhwnriiemy3a6zznieuvhd43b2ynh5vtetfgza._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251206-yea95syrfm/
Behaviour
Reads runtime system information
Changes its process name
Deletes log files
Enumerates running processes
Deletes Audit logs
Deletes journal logs
Deletes system logs
Mirai
Mirai family
Malware Config
C2 Extraction:
frohncrop77.duckdns.org
catelcro.duckdns.org
fishertriv.duckdns.org
lizadesm.duckdns.org
yukivela.duckdns.org
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/496c8b91-204e-4e15-8a19-7de401f0a21b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.26
Link:
https://yomi.yoroi.company/submissions/8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2

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 8b40ce04524582dc1287b362841198d83d9cb504a54e3e6c3ac34fdacc9329b2

(this sample)

Mirai

elf 4a3eb597358d6660f285fe7c8edddc2002b3c90db234ed6c80b8ea2b0b23801a

  
URLhaus
https://urlhaus.abuse.ch/url/3728089/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4a3eb597358d6660f285fe7c8edddc2002b3c90db234ed6c80b8ea2b0b23801a
  
Dropping
MD5 bfa8b1bdaed3a06fe7bbb9ab2d3e7626

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