MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6. 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: fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6
SHA3-384 hash: b54917202f603b24b8c3b23e4c60dd290346f2fdbb10872adce6111da7ccbeba2c206df2f01aeb3eb4f2eef5594a6c59
SHA1 hash: 9c88665bab4a70d8344195a750fe6c333cb40426
MD5 hash: 5b0c9f5b85cbb2976c999857f5cd187f
humanhash: magazine-beer-east-washington
File name:shadow.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:76'888 bytes
First seen:2025-12-30 17:56:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:sYCAbp/gT4k1oWUCGGcS4I+dxvlMdk+19:sYCAbpW4k1oWMvHdxOd9
TLSH T14A73D652B8859103C9D8A2F7F61E119E331513B8D2EB3303AC366F613689D5F0EA7E59
telfhash t137419b2adfb10b5853ec4706c2cda4279bdc315d1b595ca3aa5c2b0bc953392f93e426
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/fc1291e8-be71-463a-bf9c-1f9d276272e9/
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/6954127f127d6a14e0c8cacd/reports/51281c82-d001-417b-9b3d-5d207c501c0d/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/af891a0c-9daf-4af9-891f-20af2506f65f
Behavior Graph:
Download SVG
%3 guuid=f4fbd744-1900-0000-25b9-e06e730f0000 pid=3955 /usr/bin/sudo guuid=3c023d46-1900-0000-25b9-e06e790f0000 pid=3961 /tmp/sample.bin guuid=f4fbd744-1900-0000-25b9-e06e730f0000 pid=3955->guuid=3c023d46-1900-0000-25b9-e06e790f0000 pid=3961 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/85ba26fc-91d7-482f-ba14-d03852d6aa1f
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1842198
Signature
Multi AV Scanner detection for submitted file
Performs DNS TXT record lookups
Sample deletes itself
Sends malformed DNS queries
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1842198 Sample: shadow.arm5.elf Startdate: 30/12/2025 Architecture: LINUX Score: 68 24 H. [malformed] 2->24 26 kurol.io 2->26 28 3 other IPs or domains 2->28 30 Suricata IDS alerts for network traffic 2->30 32 Multi AV Scanner detection for submitted file 2->32 9 dash rm shadow.arm5.elf 2->9         started        12 dash rm 2->12         started        14 dash cut 2->14         started        16 7 other processes 2->16 signatures3 34 Sends malformed DNS queries 24->34 36 Performs DNS TXT record lookups 26->36 process4 signatures5 38 Sample deletes itself 9->38 18 shadow.arm5.elf 9->18         started        process6 process7 20 shadow.arm5.elf 18->20         started        process8 22 shadow.arm5.elf 20->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-30 17:57:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7s7tmxqrx23e3tylrw7ljrqdsvvewlzn42agahkrruifzi4bqxda._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251230-wje3saby5a/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-1
YARA:
n/a
Link:
https://app.threat.zone/submission/497ba978-eb44-4718-a5ed-534c3d98dbb2
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/fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6

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_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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 fcbf365e11beb64dcf0b8dbeb4c603956a4b2f2de680601d518d105ca38185c6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739063/
  
Delivery method
Distributed via web download

Comments