MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c
SHA3-384 hash: a6e5a7b81cfe2bac491c7f80b225b499b5a033d75945c8869d146b5544f873a560bded83610e798cfe27b5f3132f291f
SHA1 hash: 5a3bfaa52d67e901e997a4e60ec70114247d9f45
MD5 hash: 3fc1576d5dbda6b06d30293af7b5b2ce
humanhash: burger-spaghetti-mobile-speaker
File name:debug
Download: download sample
Signature Mirai
Create hunting rule
File size:45'964 bytes
First seen:2025-11-13 22:40:56 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:7Q6cqyJG2MwJ3i1Rr+D36hf+fGc1buQtVoIpptC5c9x2g/BBlI2acNIUQes3kRou:74fJvnV8rhhfIGIlDg5Y2wB5a8ukRokR
TLSH T15C2301F3D2C74B4DC8B214B2AC5BB14B0529EA135A90988199D6F4E4CF4767AEE390D3
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) :45'964 bytes
File size (de-compressed) :103'700 bytes
Format:linux/i386
Unpacked file: 873c279f4ab0f28fd1bd48bdc7380beae9467f42714db57a539dc32215cc779b

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Sends data to a server
Receives data from a server
Changes access rights for a file
Opens a port
DNS request
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/69165e9f219b4496562a7796/reports/b4a47046-5ca5-40a2-868a-610f2ad9fda9/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
4
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-13T20:00:00Z UTC
Last seen:
2025-11-14T10:24:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/770e5ac3-a39d-4e59-8ded-7ad625d8d1c2
Behavior Graph:
Download SVG
%3 guuid=25408d37-1900-0000-4892-75959f080000 pid=2207 /usr/bin/sudo guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214 /tmp/sample.bin net send-data guuid=25408d37-1900-0000-4892-75959f080000 pid=2207->guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 775B a4e02df3-c7fa-5be2-b410-afe687812c07 41.216.189.108:80 guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214->a4e02df3-c7fa-5be2-b410-afe687812c07 send: 4B guuid=17a4e075-1900-0000-4892-759515090000 pid=2325 /tmp/sample.bin dns net send-data guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214->guuid=17a4e075-1900-0000-4892-759515090000 pid=2325 clone guuid=1af782a2-1a00-0000-4892-7595ab0b0000 pid=2987 /tmp/sample.bin guuid=7607a039-1900-0000-4892-7595a6080000 pid=2214->guuid=1af782a2-1a00-0000-4892-7595ab0b0000 pid=2987 clone guuid=17a4e075-1900-0000-4892-759515090000 pid=2325->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 31B 01bb915c-71c6-57a6-bd5f-3cb536b9a274 vr3b.ddns.net:12121 guuid=17a4e075-1900-0000-4892-759515090000 pid=2325->01bb915c-71c6-57a6-bd5f-3cb536b9a274 send: 10B guuid=cb10a176-1900-0000-4892-759516090000 pid=2326 /tmp/sample.bin guuid=17a4e075-1900-0000-4892-759515090000 pid=2325->guuid=cb10a176-1900-0000-4892-759516090000 pid=2326 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2937d8e3-c8f7-4c1c-9d82-464dceeec5b3
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1813869
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1813869 Sample: debug.elf Startdate: 14/11/2025 Architecture: LINUX Score: 56 18 vr3b.ddns.net 2->18 20 169.254.169.254, 80 USDOSUS Reserved 2->20 22 5 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Sample is packed with UPX 2->26 8 debug.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 28 Uses dynamic DNS services 18->28 process4 process5 12 debug.elf 8->12         started        14 debug.elf 8->14         started        process6 16 debug.elf 12->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-13 22:42:30 UTC
File Type:
ELF32 Little (Exe)
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56n6mzhc4mipxvmnrwd3yta3ngqpgjpq4gfk5te5wbeetj6mxiwa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251113-2mcdysxngk/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai family
Mirai
Malware Config
C2 Extraction:
vr3b.ddns.net
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7bd5dbba-1593-4056-8ae1-b2e5881b9197
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.74
Link:
https://yomi.yoroi.company/submissions/ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c

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 ef9be664e2e310fbd58d8d87bc4c1b69a0f325f0e18aaecc9db04849a7ccba2c

(this sample)

Mirai

elf 873c279f4ab0f28fd1bd48bdc7380beae9467f42714db57a539dc32215cc779b

  
URLhaus
https://urlhaus.abuse.ch/url/3704789/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 873c279f4ab0f28fd1bd48bdc7380beae9467f42714db57a539dc32215cc779b
  
Dropping
MD5 23f8e97ab1869019176034d9effa7bca

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