MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317
SHA3-384 hash: be6714b9e5abb1f05c737d88642b39a9ba445d711ec2798f085ba855224e12456ebfbd8401be637555b04293eec6a506
SHA1 hash: a26c32e391dfd50c09cd62f6d4f352ea6eb04932
MD5 hash: e01631928eaffaaa4b0bef035dd5ff6a
humanhash: winter-hydrogen-video-golf
File name:Orbt.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:53'296 bytes
First seen:2025-10-20 06:39:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:1GqPHnztF43ng6qrHKRWikTVGa0jwnK4P35Ninouy8Hyq:xt6g6qbfFVGaM9E5Aoutl
TLSH T1A233F1B59E5FAC5BE2B645B12BAC710D18D0AE3C624F8DB6EA84B50C3130A6C139C6D5
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
DNS request
Runs as daemon
Sends data to a server
Connection attempt
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed threat upx
Link:
https://www.filescan.io/uploads/68f5d9d3c85c5c56972ea57c/reports/c451cc87-05c0-46ce-b1a6-30f8cdbd3df7/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-19T21:35:00Z UTC
Last seen:
2025-10-20T10:13:00Z 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/ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1572e0bb-1e69-4e06-b5d8-06710c1b4ce4
Behavior Graph:
Download SVG
%3 guuid=186239dc-1900-0000-9357-ef1d370a0000 pid=2615 /usr/bin/sudo guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622 /tmp/sample.bin net guuid=186239dc-1900-0000-9357-ef1d370a0000 pid=2615->guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a89f97df-1900-0000-9357-ef1d420a0000 pid=2626 /tmp/sample.bin guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622->guuid=a89f97df-1900-0000-9357-ef1d420a0000 pid=2626 clone guuid=f268140c-1b00-0000-9357-ef1d4a0c0000 pid=3146 /tmp/sample.bin guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622->guuid=f268140c-1b00-0000-9357-ef1d4a0c0000 pid=3146 clone guuid=ddfe190c-1b00-0000-9357-ef1d4b0c0000 pid=3147 /tmp/sample.bin net send-data zombie guuid=8086cade-1900-0000-9357-ef1d3e0a0000 pid=2622->guuid=ddfe190c-1b00-0000-9357-ef1d4b0c0000 pid=3147 clone guuid=4b1da2df-1900-0000-9357-ef1d430a0000 pid=2627 /tmp/sample.bin guuid=a89f97df-1900-0000-9357-ef1d420a0000 pid=2626->guuid=4b1da2df-1900-0000-9357-ef1d430a0000 pid=2627 clone guuid=859fa7df-1900-0000-9357-ef1d440a0000 pid=2628 /tmp/sample.bin dns net send-data zombie guuid=a89f97df-1900-0000-9357-ef1d420a0000 pid=2626->guuid=859fa7df-1900-0000-9357-ef1d440a0000 pid=2628 clone guuid=859fa7df-1900-0000-9357-ef1d440a0000 pid=2628->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 45B 0ecf02bb-0e2c-5ebd-8166-f09908e50581 mirailoversddos.duckdns.org:69 guuid=859fa7df-1900-0000-9357-ef1d440a0000 pid=2628->0ecf02bb-0e2c-5ebd-8166-f09908e50581 send: 10B guuid=ddfe190c-1b00-0000-9357-ef1d4b0c0000 pid=3147->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1380B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=ddfe190c-1b00-0000-9357-ef1d4b0c0000 pid=3147->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2a9ad700-283c-4e6b-ae08-4e6a55c8f734
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1798094
Signature
Malicious sample detected (through community Yara rule)
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: 1798094 Sample: Orbt.x86.elf Startdate: 20/10/2025 Architecture: LINUX Score: 64 22 mirailoversddos.duckdns.org 2->22 24 mirailoversddos.duckdns.org 144.172.109.62, 42680, 69 PONYNETUS United States 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Sample is packed with UPX 2->32 8 Orbt.x86.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Orbt.x86.elf 8->12         started        14 Orbt.x86.elf 8->14         started        16 Orbt.x86.elf 8->16         started        process6 18 Orbt.x86.elf 12->18         started        20 Orbt.x86.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-20 00:36:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54b2egbips6es657d4nnv6lx6vwuduwmnbvf7an33xx3mz6zymlq._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/251020-hgdkaagm6y/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
mirailoversddos.duckdns.org
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f043f49e-719e-4dc0-af0b-2d74f8cf25a1
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317

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

sh 4ea30e2466ac21c67873e946bc93b824d154a224ee8a2fe76f314f49e1b6446a

Mirai

elf ef03a218287cbc497bbf1f1adaf977f56d41d2cc686a5f81bbddefb667d9c317

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3682108/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 4ea30e2466ac21c67873e946bc93b824d154a224ee8a2fe76f314f49e1b6446a
  
Dropped by
MD5 21f76baf5a73eba37fdb9d6e5e7ef21f
  
URLhaus
https://urlhaus.abuse.ch/url/3681120/

Comments