MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb
SHA3-384 hash: 06840a6c565edd2cd3bbf55d324432f9a490422502edde78aedfe926c120e1cdfeadd080825daad41a27f7b4b5b75f19
SHA1 hash: 484225128f2e200aba65b0f3c5c4729fea30bfe2
MD5 hash: a6c4df105e42c5265f4de5cff5f61a06
humanhash: angel-angel-eight-minnesota
File name:boatnet.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:46'624 bytes
First seen:2026-01-17 15:04:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:g/TYCoIxdEk+AxoTZAZHFeq8b3i9q3UELbUXfi6nVMQHI4vcGpvl:gECFd+A6YHAxXLRQZl
TLSH T1CC230261890E9EB124703C76DAD5E39376E02A71C6673013D62C0B3C6FB9B531E57E4A
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) :46'624 bytes
File size (de-compressed) :129'940 bytes
Format:linux/arm
Unpacked file: 71bf36822ea35578f0f0a3828d7238d35cef9b79b5a032ddbee42606b20d2056

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/41ac8bee-6203-4c67-a22a-ef459e8c25ac/
Detection(s):
Unix.Trojan.Mirai-9955244-0
Create hunting rule

Unix.Trojan.Mirai-10030115-0
Create hunting rule

Unix.Trojan.Mirai-10034373-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/696ba503584f1963ad58d6cf/reports/c24bba65-2baa-44cb-b104-4970a464e461/overview
Result
Gathering data
Verdict:
Malicious
File Type:
ELF 32 LE
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7c8d7fcc-d001-4b26-a67d-18546c247f3f
Behavior Graph:
Download SVG
%3 guuid=e991f7b7-1800-0000-de06-51d44a0a0000 pid=2634 /usr/bin/sudo guuid=038538ba-1800-0000-de06-51d4510a0000 pid=2641 /tmp/sample.bin guuid=e991f7b7-1800-0000-de06-51d44a0a0000 pid=2634->guuid=038538ba-1800-0000-de06-51d4510a0000 pid=2641 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4aceb00-733e-4015-98a3-064b0c3ce601
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1852518
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: 1852518 Sample: boatnet.arm7.elf Startdate: 17/01/2026 Architecture: LINUX Score: 72 24 64.89.163.39, 3778, 48020, 48022 DIXIE-NETUS United States 2->24 26 daisy.ubuntu.com 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected Mirai 2->32 34 Sample is packed with UPX 2->34 7 boatnet.arm7.elf 2->7         started        9 xfce4-panel wrapper-2.0 2->9         started        11 xfce4-panel wrapper-2.0 2->11         started        13 7 other processes 2->13 signatures3 process4 process5 15 boatnet.arm7.elf 7->15         started        18 boatnet.arm7.elf 7->18         started        20 boatnet.arm7.elf 7->20         started        22 wrapper-2.0 xfpm-power-backlight-helper 9->22         started        signatures6 36 Sample tries to kill multiple processes (SIGKILL) 15->36
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-17 15:05:47 UTC
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqfxnymyd3i2uvf4oe2pfxitsr2o6nseoq5qvf6mqopbortxs7vq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/260117-sfv32sfw4g/
Behaviour
Reads runtime system information
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9955244-0
YARA:
n/a
Link:
https://app.threat.zone/submission/6aa28d1e-d455-44a2-b841-7c83e5b07e67
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/640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb

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: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 640b76e1981ed1aa54bc7134f2dd139474ef3644743b0a97cc839e17467797eb

(this sample)

Mirai

elf 71bf36822ea35578f0f0a3828d7238d35cef9b79b5a032ddbee42606b20d2056

  
URLhaus
https://urlhaus.abuse.ch/url/3759426/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 71bf36822ea35578f0f0a3828d7238d35cef9b79b5a032ddbee42606b20d2056
  
Dropping
MD5 035075b1fda9fd4c2f2125fdb1ef3dae

Comments