MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f
SHA3-384 hash: e94b7058f2965446cc77793cdecb1101df6a1fbaf4f525112b57445ac19db9ee04c90e594f7891f1fe4e18c8bade0b1c
SHA1 hash: 4d1242f714e3c6600df4aacf75665b6591a8d7eb
MD5 hash: 5d1f1cd8235761fe3af47df04a6bf1ae
humanhash: network-lamp-ohio-sink
File name:x86
Download: download sample
Signature Mirai
Create hunting rule
File size:62'248 bytes
First seen:2025-12-30 00:03:56 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:iDxXcR4c2huRMDjZhR8xO18cM9d+VSyvLNDPfnouy8HyR:iDmR2uRMvZh2x68wDDRPoutG
TLSH T152530195C2A6CEB5D82B44B8DEBE75834051820D6B6DA0D73FEA10362D4FF11B7085A7
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) :62'248 bytes
File size (de-compressed) :154'052 bytes
Format:linux/i386
Unpacked file: 4a4535ace7b7a0c90a5e27e6cb1c6918436676dc5b473e31abdbfa37270cc464

Intelligence

File Origin
# of uploads :
1
# of downloads :
41
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/354fc673-207e-407b-be90-87a484589d9e/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/69531712127d6a14e0c75f1d/reports/fd68ebcf-0ca6-48d1-85f9-026d0d712ad2/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-29T21:11:00Z UTC
Last seen:
2025-12-29T22:10:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw
Link:
https://opentip.kaspersky.com/b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/421f6726-562e-4568-b31e-ffebdb71cd3e
Behavior Graph:
Download SVG
%3 guuid=800b68d6-1900-0000-0b94-cc860f080000 pid=2063 /usr/bin/sudo guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069 /tmp/sample.bin net write-config write-file guuid=800b68d6-1900-0000-0b94-cc860f080000 pid=2063->guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=b54e93d9-1900-0000-0b94-cc861a080000 pid=2074 /usr/bin/dash guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->guuid=b54e93d9-1900-0000-0b94-cc861a080000 pid=2074 execve guuid=b5c4abdd-1900-0000-0b94-cc8621080000 pid=2081 /usr/bin/dash guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->guuid=b5c4abdd-1900-0000-0b94-cc8621080000 pid=2081 execve guuid=b6f834e0-1900-0000-0b94-cc8626080000 pid=2086 /tmp/sample.bin guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->guuid=b6f834e0-1900-0000-0b94-cc8626080000 pid=2086 clone guuid=2cb9f70c-1b00-0000-0b94-cc86dd0a0000 pid=2781 /tmp/sample.bin guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->guuid=2cb9f70c-1b00-0000-0b94-cc86dd0a0000 pid=2781 clone guuid=5f7d040d-1b00-0000-0b94-cc86de0a0000 pid=2782 /tmp/sample.bin dns net send-data zombie guuid=d3ef6ed8-1900-0000-0b94-cc8615080000 pid=2069->guuid=5f7d040d-1b00-0000-0b94-cc86de0a0000 pid=2782 clone guuid=78912cda-1900-0000-0b94-cc861c080000 pid=2076 /usr/bin/systemctl guuid=b54e93d9-1900-0000-0b94-cc861a080000 pid=2074->guuid=78912cda-1900-0000-0b94-cc861c080000 pid=2076 execve guuid=1c27fadd-1900-0000-0b94-cc8622080000 pid=2082 /usr/bin/systemctl guuid=b5c4abdd-1900-0000-0b94-cc8621080000 pid=2081->guuid=1c27fadd-1900-0000-0b94-cc8622080000 pid=2082 execve guuid=4e5a43e0-1900-0000-0b94-cc8627080000 pid=2087 /tmp/sample.bin guuid=b6f834e0-1900-0000-0b94-cc8626080000 pid=2086->guuid=4e5a43e0-1900-0000-0b94-cc8627080000 pid=2087 clone guuid=215047e0-1900-0000-0b94-cc8629080000 pid=2089 /tmp/sample.bin net send-data zombie guuid=b6f834e0-1900-0000-0b94-cc8626080000 pid=2086->guuid=215047e0-1900-0000-0b94-cc8629080000 pid=2089 clone guuid=215047e0-1900-0000-0b94-cc8629080000 pid=2089->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 54d92a3b-1447-55af-b534-047898c60c8d 1.1.1.1:53 guuid=215047e0-1900-0000-0b94-cc8629080000 pid=2089->54d92a3b-1447-55af-b534-047898c60c8d send: 185B 55e75a70-5f0f-5401-b0ef-995451b8fb69 teamc2.duckdns.org:12121 guuid=215047e0-1900-0000-0b94-cc8629080000 pid=2089->55e75a70-5f0f-5401-b0ef-995451b8fb69 send: 8B guuid=5f7d040d-1b00-0000-0b94-cc86de0a0000 pid=2782->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=5f7d040d-1b00-0000-0b94-cc86de0a0000 pid=2782->54d92a3b-1447-55af-b534-047898c60c8d send: 36B guuid=5f7d040d-1b00-0000-0b94-cc86de0a0000 pid=2782->55e75a70-5f0f-5401-b0ef-995451b8fb69 send: 10B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/237c3f70-b1c5-409c-b916-1f0fad737628
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1841853
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: 1841853 Sample: x86.elf Startdate: 30/12/2025 Architecture: LINUX Score: 68 31 169.254.169.254, 80 USDOSUS Reserved 2->31 33 teamc2.duckdns.org 151.242.30.13, 12121, 49858, 49860 RASANAIR Iran (ISLAMIC Republic Of) 2->33 35 2 other IPs or domains 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/b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-30 00:04:34 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=w4nrvhcb2gdkldoech7noqrgmnpu4cmqdy64rqnbcg3ian2xx2pq._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/251230-act3gavkfm/
Behaviour
Reads runtime system information
Changes its process name
UPX packed file
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/41dc63f1-808f-450e-9398-3788f70d7703
Please note that we are no longer able to provide a coverage score for Virus Total.

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 b71b1a9c41d186a58dc411fed74226635f4e09901e3dc8c1a111b6803757be9f

(this sample)

Mirai

elf 4a4535ace7b7a0c90a5e27e6cb1c6918436676dc5b473e31abdbfa37270cc464

  
Dropping
SHA256 4a4535ace7b7a0c90a5e27e6cb1c6918436676dc5b473e31abdbfa37270cc464
  
Dropping
MD5 13ae79ab0b18aba6af785baef020688e
  
URLhaus
https://urlhaus.abuse.ch/url/3722813/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3719326/
  
URLhaus
https://urlhaus.abuse.ch/url/3722799/

Comments