MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508
SHA3-384 hash: df50d960f231ca139936617563925c539d4bea45b148c20f7061720fb55178a5385db2b66cb5f393d88d30f26955b6e7
SHA1 hash: ea630890113ad56d7fd8ef2ef327194d6e587ad5
MD5 hash: af82423d9fc42f2fd606b0935a356188
humanhash: four-ack-finch-victor
File name:x86
Download: download sample
Signature Mirai
Create hunting rule
File size:65'240 bytes
First seen:2025-12-31 00:17:55 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:r2a7oa4LGwR8ViRZBoZCkx/dXv52AhTfTFVZtQmV0Hnouy8HyF:xoa478gRZegkND2AhT7FnaPHoutq
TLSH T1C2530225E4FE0A5DFE137634477CAD28E800A26F176121F56EC4623208D3F7D7E2566A
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika unknown
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :65'240 bytes
File size (de-compressed) :163'204 bytes
Format:linux/i386
Unpacked file: 4966619fd0c1b5660b96235a51b4845042cc7cc980c68697ea6ea1d6b3c8c355

Intelligence

File Origin
# of uploads :
1
# of downloads :
42
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/37922037-02d8-4b13-a305-f114a64ab966/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-30T21:24:00Z UTC
Last seen:
2025-12-30T22:35:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c3e75bf8-7713-473e-8d98-d2016526fd27
Behavior Graph:
Download SVG
%3 guuid=96b60984-1900-0000-982f-c5526d0b0000 pid=2925 /usr/bin/sudo guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931 /tmp/sample.bin net write-config write-file guuid=96b60984-1900-0000-982f-c5526d0b0000 pid=2925->guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=c9ee0889-1900-0000-982f-c552760b0000 pid=2934 /usr/bin/dash guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->guuid=c9ee0889-1900-0000-982f-c552760b0000 pid=2934 execve guuid=d433f68a-1900-0000-982f-c5527c0b0000 pid=2940 /usr/bin/dash guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->guuid=d433f68a-1900-0000-982f-c5527c0b0000 pid=2940 execve guuid=34253190-1900-0000-982f-c552850b0000 pid=2949 /tmp/sample.bin guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->guuid=34253190-1900-0000-982f-c552850b0000 pid=2949 clone guuid=f24d83bd-1a00-0000-982f-c5528a0d0000 pid=3466 /tmp/sample.bin guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->guuid=f24d83bd-1a00-0000-982f-c5528a0d0000 pid=3466 clone guuid=dd1c87bd-1a00-0000-982f-c5528b0d0000 pid=3467 /tmp/sample.bin dns net send-data zombie guuid=55b65a87-1900-0000-982f-c552730b0000 pid=2931->guuid=dd1c87bd-1a00-0000-982f-c5528b0d0000 pid=3467 clone guuid=c81c8389-1900-0000-982f-c552780b0000 pid=2936 /usr/bin/systemctl guuid=c9ee0889-1900-0000-982f-c552760b0000 pid=2934->guuid=c81c8389-1900-0000-982f-c552780b0000 pid=2936 execve guuid=2cc52f8b-1900-0000-982f-c5527d0b0000 pid=2941 /usr/bin/systemctl guuid=d433f68a-1900-0000-982f-c5527c0b0000 pid=2940->guuid=2cc52f8b-1900-0000-982f-c5527d0b0000 pid=2941 execve guuid=fd2d5e11-1a00-0000-982f-c5526b0c0000 pid=3179 /tmp/sample.bin guuid=34253190-1900-0000-982f-c552850b0000 pid=2949->guuid=fd2d5e11-1a00-0000-982f-c5526b0c0000 pid=3179 clone guuid=1ace6411-1a00-0000-982f-c5526c0c0000 pid=3180 /tmp/sample.bin guuid=34253190-1900-0000-982f-c552850b0000 pid=2949->guuid=1ace6411-1a00-0000-982f-c5526c0c0000 pid=3180 clone guuid=dd1c87bd-1a00-0000-982f-c5528b0d0000 pid=3467->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 54d92a3b-1447-55af-b534-047898c60c8d 1.1.1.1:53 guuid=dd1c87bd-1a00-0000-982f-c5528b0d0000 pid=3467->54d92a3b-1447-55af-b534-047898c60c8d send: 72B 55e75a70-5f0f-5401-b0ef-995451b8fb69 teamc2.duckdns.org:12121 guuid=dd1c87bd-1a00-0000-982f-c5528b0d0000 pid=3467->55e75a70-5f0f-5401-b0ef-995451b8fb69 send: 8B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/954c5547-ae5c-4ba1-916c-d16e3303ac71
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1842425
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1842425 Sample: x86.elf Startdate: 31/12/2025 Architecture: LINUX Score: 68 31 169.254.169.254, 80 USDOSUS Reserved 2->31 33 teamc2.duckdns.org 151.242.30.13, 12121, 60898 RASANAIR Iran (ISLAMIC Republic Of) 2->33 35 daisy.ubuntu.com 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Gafgyt 2->41 43 Sample is packed with UPX 2->43 8 x86.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 file5 29 /usr/local/bin/infinitd, ELF 8->29 dropped 13 x86.elf sh 8->13         started        15 x86.elf sh 8->15         started        17 x86.elf 8->17         started        19 2 other processes 8->19 process6 process7 21 sh systemctl 13->21         started        23 sh systemctl 15->23         started        25 x86.elf 17->25         started        27 x86.elf 17->27         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-31 00:18:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqg5dac5hyzclhsf6iatxv4wkkylbsydfiy4avsfz5jgabt6euea._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/251231-al2tnsam5w/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
UPX packed file
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/cd0e651c-23a3-4e2a-bc7d-b15dee82c5d7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508

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 640dd1805d3e32259e45f2013bd79652b0b0cb032a31c05645cf5260067e2508

(this sample)

Mirai

elf 4966619fd0c1b5660b96235a51b4845042cc7cc980c68697ea6ea1d6b3c8c355

  
URLhaus
https://urlhaus.abuse.ch/url/3722799/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4966619fd0c1b5660b96235a51b4845042cc7cc980c68697ea6ea1d6b3c8c355
  
Dropping
MD5 55af3ff187034e78746be7d24b2d9fd7
  
URLhaus
https://urlhaus.abuse.ch/url/3719326/
  
URLhaus
https://urlhaus.abuse.ch/url/3722813/

Comments