MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b
SHA3-384 hash: 4bb7f6fa5ad82bcff3e4380fe8640346c3bef09fac2b15743f3ffa085e73247a40146206e536f76ce87915a6cea2219f
SHA1 hash: 3f55ba0a21bb96511db3c24268d1230f7ec120e3
MD5 hash: 32665ec7ea40367d1928b71a024cb2f8
humanhash: robin-violet-colorado-fourteen
File name:nz.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:43'264 bytes
First seen:2026-05-10 18:02:12 UTC
Last seen:2026-05-18 17:25:12 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:G6/jZfcIpzKgxirQHTDnEjVOWhfuyKQRyNGlcPyTLdx7+Mip073LkJgGlzDpbuRP:9jZ3OxGRWhfTKe6fPylcMip00VJul
TLSH T1D013E1B92D4E6FDAC5FC94B00DA78F711EA80D11FE1AB49E5FB044A91C41AFC246CB90
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) :43'264 bytes
File size (de-compressed) :117'968 bytes
Format:linux/mips
Unpacked file: 6f23573aba8b92713166a2911d2e3663eab13429943b0c0bb3a9393b4aba9c4b

Intelligence

File Origin
# of uploads :
3
# of downloads :
74
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/42f41167-feff-49a0-9110-27e9fb9a8ee8/
Detection(s):
SecuriteInfo.com.Linux.Mirai.9816.12607.1206.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Connection attempt
Opens a port
Runs as daemon
DNS request
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a00c846df14f1cb2acf2e5d/reports/59f4ffd8-7112-4380-872e-7aa2b2346e26/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
37
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-05-10T15:45:00Z UTC
Last seen:
2026-05-11T12:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c647264b-b2bc-41ce-8f9a-f47f947a1cc0
Behavior Graph:
Download SVG
%3 guuid=534f8c67-1c00-0000-719d-9a4af80d0000 pid=3576 /usr/bin/sudo guuid=e325e569-1c00-0000-719d-9a4afd0d0000 pid=3581 /tmp/sample.bin guuid=534f8c67-1c00-0000-719d-9a4af80d0000 pid=3576->guuid=e325e569-1c00-0000-719d-9a4afd0d0000 pid=3581 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/248d7178-382c-44c7-b039-ce58adbffaee
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-05-10 18:05:57 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6s27snfiavk47kcudiiktme6tzgoqj6padf5m6y37tgtylralyfq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/260510-wmq98afx9j/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Family: Mirai
Malware Config
C2 Extraction:
fucker1.duckdns.org
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/f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b

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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 f4b5f934a80555cfa8541a10a9b09e9e4ce827cf00cbd67b1bfccd3c2e205e0b

(this sample)

Mirai

elf 6f23573aba8b92713166a2911d2e3663eab13429943b0c0bb3a9393b4aba9c4b

  
URLhaus
https://urlhaus.abuse.ch/url/3844120/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 6f23573aba8b92713166a2911d2e3663eab13429943b0c0bb3a9393b4aba9c4b
  
Dropping
MD5 82f91b9cf5ef8b50aecd9a7d00bf3b0f

Comments