MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee
SHA3-384 hash: c2f2b6a7333909ca031159102dea09e8c77e2bc943815a22c88636fc627b8855da967ca1accea4e4b66812f4760fd5c8
SHA1 hash: 670d6b2a893c07ce543ef380026eb0fec7d78d59
MD5 hash: 10a52c8c35753a8205dada2366cac582
humanhash: timing-jupiter-alanine-cold
File name:debug
Download: download sample
Signature Mirai
Create hunting rule
File size:78'788 bytes
First seen:2025-12-09 18:58:28 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:n/EUQDvUTB98sjFacxoTowTjSkhbL3mfhCv8JOYIOzjME+BAvRITHnouy8Hy/:n/ERDvi8wmjTjS43WwUJyOzQjiRIDoum
TLSH T1D373020888D983E1C4346179D8FEF6669C35A15BE664E33B8BBC22712DE0FC9E55C522
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) :78'788 bytes
File size (de-compressed) :213'348 bytes
Format:linux/i386
Unpacked file: db72cdb5ae27046822e32a6fbc41cf200c1df177ab3b94a367f7ae7a5094d6e2

Intelligence

File Origin
# of uploads :
1
# of downloads :
43
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/5f111bd6-a9a7-4957-a166-1179efa30d1e/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Kills processes
Launching a process
Sends data to a server
Receives data from a server
Creating a file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Opens a port
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/693871811eac7b9b76a231d7/reports/7dd56ae6-9184-458e-9d97-932e9815b1b7/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-09T15:52:00Z UTC
Last seen:
2025-12-10T09:50:00Z UTC
Hits:
~10
Detections:
HEUR:Exploit.Linux.Mvpower.a HEUR:Exploit.Linux.CVE-2018-10561.a HEUR:Exploit.Linux.Netgear.a HEUR:Exploit.Linux.DLink.b HEUR:Exploit.Linux.CVE-2017-17215.a HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Exploit.Linux.Vacron.a HEUR:Exploit.Linux.CVE-2014-8361.a HEUR:Backdoor.Linux.Gafgyt.cn HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Exploit.Linux.Netgear.b HEUR:Exploit.Linux.DLink.a HEUR:Backdoor.Linux.Mirai.ii HEUR:Backdoor.Linux.Mirai.h
Link:
https://opentip.kaspersky.com/fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/082907a0-5c80-4ea4-92f6-13fae81890a7
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1829790
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using cron
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1829790 Sample: debug.elf Startdate: 09/12/2025 Architecture: LINUX Score: 100 47 191.134.10.79, 52869, 80, 8080 TIMSABR Brazil 2->47 49 142.7.191.248, 23 UNIFIEDLAYER-AS-1US Canada 2->49 51 99 other IPs or domains 2->51 57 Malicious sample detected (through community Yara rule) 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 Yara detected Gafgyt 2->61 63 3 other signatures 2->63 9 debug.elf 2->9         started        12 dash rm 2->12         started        14 dash rm 2->14         started        16 python3.8 dpkg 2->16         started        signatures3 process4 file5 45 /usr/Bin), ELF 9->45 dropped 18 debug.elf 9->18         started        20 debug.elf sh 9->20         started        22 debug.elf 9->22         started        24 4 other processes 9->24 process6 process7 26 debug.elf 18->26         started        28 debug.elf 18->28         started        30 debug.elf 18->30         started        38 117 other processes 18->38 32 sh crontab 20->32         started        36 sh 20->36         started        file8 43 /var/spool/cron/crontabs/tmp.b41xjP, ASCII 32->43 dropped 53 Sample tries to persist itself using cron 32->53 55 Executes the "crontab" command typically for achieving persistence 32->55 40 sh crontab 36->40         started        signatures9 process10 signatures11 65 Executes the "crontab" command typically for achieving persistence 40->65
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-09 18:59:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7og4p5tctkf5iuidd2njiswrw5y7ddkmdnrobwvwwkxezgqyupxa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/251209-xm5y2scm3y/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
UPX packed file
Creates a large amount of network flows
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Contacts a large (3360) amount of remote hosts
Mirai
Mirai family
Malware Config
C2 Extraction:
draft22.duckdns.org
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/f82f1304-9c9b-4725-8816-d73eee1a09c5
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee

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 fb8dc7f6629a8bd451031e9a944ad1b771f18d4c1b62e0dab6b2ae4c9a18a3ee

(this sample)

Mirai

elf db72cdb5ae27046822e32a6fbc41cf200c1df177ab3b94a367f7ae7a5094d6e2

  
URLhaus
https://urlhaus.abuse.ch/url/3727049/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 db72cdb5ae27046822e32a6fbc41cf200c1df177ab3b94a367f7ae7a5094d6e2
  
Dropping
MD5 565f09cb89104b9daed096358e942cf4
  
URLhaus
https://urlhaus.abuse.ch/url/3727059/

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