MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e
SHA3-384 hash: 8912b5a51b2bcc584418b2c76b1241284af03c7c81eba1425c89a635af36d9fc0f2ba16d0ae02c7e3edb5f4c48ede4c4
SHA1 hash: d0aa942c9cf08f73f3aae88de1684e2aef65c7c9
MD5 hash: 36fb057f5bebfe93905d659ac64298d7
humanhash: cup-high-kitten-eleven
File name:top1miku.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:38'572 bytes
First seen:2025-07-14 17:59:58 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:hzSK1dswYA8cwjv2sYveUm5fGYb4CHCWZxnyaz5qHfsHz9s3UozD:hvsg8cwb2sYvL7XCHbxyCY+AzD
TLSH T12D03E11CA3181916D5E248392D3D8EC566015FC8E2E374251CB688BC7FCE952BBFD6E1
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) :38'572 bytes
File size (de-compressed) :84'872 bytes
Format:linux/arm
Unpacked file: e1d901e0a092176ad9af812e78ede96c8ed2db0682c6ac8df85c1ae2bea826ee

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/687545d58a7d628a81ae2365/reports/31c7cb69-39e4-45bf-9f8d-c761111eaa94/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a1ed40cd-4936-44d6-a183-2321ba622a3b
Behavior Graph:
Download SVG
%3 guuid=1aad4dfa-1800-0000-5e11-4fbbeb090000 pid=2539 /usr/bin/sudo guuid=dc6209fd-1800-0000-5e11-4fbbec090000 pid=2540 /tmp/sample.bin guuid=1aad4dfa-1800-0000-5e11-4fbbeb090000 pid=2539->guuid=dc6209fd-1800-0000-5e11-4fbbec090000 pid=2540 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/90e19ba0-18fa-4ef1-a476-c11e71c55d85
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1736405
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1736405 Sample: top1miku.arm.elf Startdate: 14/07/2025 Architecture: LINUX Score: 76 17 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->17 19 daisy.ubuntu.com 2->19 21 Malicious sample detected (through community Yara rule) 2->21 23 Multi AV Scanner detection for submitted file 2->23 25 Yara detected Okiru 2->25 27 2 other signatures 2->27 7 top1miku.arm.elf 2->7         started        9 python3.8 dpkg 2->9         started        signatures3 process4 process5 11 top1miku.arm.elf 7->11         started        13 top1miku.arm.elf 7->13         started        15 top1miku.arm.elf 7->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-07-14 18:00:41 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsc6k4yefzuphkztrari27rexbn2mblyd7c5556cs2uzwiyy52ha._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250714-wlmkmswsct/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
top1miku.duckdns.org
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a1029042-d12b-4a7c-adaa-3ca27072983e
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/8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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 8c85e573042e68f3ab3388228d7e24b85ba605781fc5def7c296a99b2318ee8e

(this sample)

Mirai

elf e1d901e0a092176ad9af812e78ede96c8ed2db0682c6ac8df85c1ae2bea826ee

  
Dropping
SHA256 e1d901e0a092176ad9af812e78ede96c8ed2db0682c6ac8df85c1ae2bea826ee
  
Dropping
MD5 9976d6c1ecd3f3d747122a43904496de
  
URLhaus
https://urlhaus.abuse.ch/url/3581121/
  
Delivery method
Distributed via web download

Comments