MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36. 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: 81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36
SHA3-384 hash: 65ed0fa9b10255d3263eda89b4c6f6a353765de212194480704f666e096ddd0f0291f3c3fee31b26c37003ca721fb08c
SHA1 hash: c30483ee0ea0c750f1fab25f166b6fd3c47bec29
MD5 hash: c3c5a63f76d6113054b587487582d24d
humanhash: papa-pizza-football-berlin
File name:boatnet.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:54'992 bytes
First seen:2026-01-09 00:40:44 UTC
Last seen:2026-01-09 13:01:00 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:wox7fAC7X/Rnuzg28U94fhXoxgHC8lQPVJu0:woxLlb//UqfLHC/PVQ0
TLSH T1FF33F2C52B2241F9E58590BF569066D038180E97A543EF1CB123B9BB9F535CB21F3E8D
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) :54'992 bytes
File size (de-compressed) :190'644 bytes
Format:linux/mips
Unpacked file: 497401394b2183f92e98968f7063b2004b0404d636d1d14c11140586b5bd7ce4

Intelligence

File Origin
# of uploads :
2
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e1611a91-89b7-418d-a41c-9dde825ecd77/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/69604ec507ef5fa68e81f761/reports/88ad7895-f9bb-476e-91b4-af4ec3315c82/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-08T22:55:00Z UTC
Last seen:
2026-01-09T00:24:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/21b4d0e7-83c1-4367-9a0e-687b011f8cb6
Behavior Graph:
Download SVG
%3 guuid=0c6107be-1a00-0000-638c-4904520b0000 pid=2898 /usr/bin/sudo guuid=3e7145c1-1a00-0000-638c-4904580b0000 pid=2904 /tmp/sample.bin guuid=0c6107be-1a00-0000-638c-4904520b0000 pid=2898->guuid=3e7145c1-1a00-0000-638c-4904580b0000 pid=2904 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a3335761-1480-427b-a464-9cc6cda94fef
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1846985
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1846985 Sample: boatnet.mips.elf Startdate: 09/01/2026 Architecture: LINUX Score: 72 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 178.16.54.217, 36608, 3778 DUSNET-ASDE Germany 2->26 28 3 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Mirai 2->34 36 Sample is packed with UPX 2->36 7 boatnet.mips.elf 2->7         started        9 xfce4-panel wrapper-2.0 2->9         started        11 xfce4-panel wrapper-2.0 2->11         started        13 10 other processes 2->13 signatures3 process4 process5 15 boatnet.mips.elf 7->15         started        18 boatnet.mips.elf 7->18         started        20 boatnet.mips.elf 7->20         started        22 wrapper-2.0 xfpm-power-backlight-helper 9->22         started        signatures6 38 Sample tries to kill multiple processes (SIGKILL) 15->38
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-09 00:41:50 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=qhfr5a62duh3idq5lnvasztlsyx2tlk2qk3fkwzkjtnjxknqdq3a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/260109-a1t3dagv6f/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e60b6f3a-44f1-4986-b89b-88b3cc8a9e51
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/81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36

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 81cb1e83da1d0fb40e1d5b6a09666b962fa9ad5a82b6555b2a4cda9ba9b01c36

(this sample)

Mirai

elf 497401394b2183f92e98968f7063b2004b0404d636d1d14c11140586b5bd7ce4

  
URLhaus
https://urlhaus.abuse.ch/url/3665464/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 497401394b2183f92e98968f7063b2004b0404d636d1d14c11140586b5bd7ce4
  
Dropping
MD5 0d2c3686e424c53cc1c2e3edad7a2a35

Comments