MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2. 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: b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2
SHA3-384 hash: cb1cee09d0ec0e0c91b5a29ee7c92b5adc737967148982e50caccfe5667b0c5f9e6af64b8c2760fffa958ea83a9745cc
SHA1 hash: a4bcf1afed5232b2f52c99d9ac4e6d25197ce593
MD5 hash: ed526b4eb87d1ac97e879b5c5b190712
humanhash: lake-crazy-carbon-lima
File name:top1miku.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:62'564 bytes
First seen:2025-07-15 12:13:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7YAdUqyMzmVRjb0lNcJq3+LdzrQcpHPFX9LnIrIENYNPCg+R:7HUEzm/HUNkquLdPpvFtLnI/NYNPCbR
TLSH T175530286C09FE5B1C1701CFE6A31CDE779020738EDA27933886A836937DC91A5774947
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) :62'564 bytes
File size (de-compressed) :160'692 bytes
Format:linux/arm
Unpacked file: 0863171adbd8ec2b2b0a1faa55437a9b128a13ae8bfa883711ca325136cd0247

Intelligence

File Origin
# of uploads :
1
# of downloads :
23
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/687645e68a7d628a81afebc5/reports/85105909-0ad1-4815-bc5a-e99393b446da/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
47
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/791d3fa4-13f4-46c1-b109-7f6f4180d9f7
Behavior Graph:
Download SVG
%3 guuid=8757c251-1a00-0000-ed32-1ac6d90a0000 pid=2777 /usr/bin/sudo guuid=8b8d1254-1a00-0000-ed32-1ac6dd0a0000 pid=2781 /tmp/sample.bin guuid=8757c251-1a00-0000-ed32-1ac6d90a0000 pid=2777->guuid=8b8d1254-1a00-0000-ed32-1ac6dd0a0000 pid=2781 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b0cd0c2-3586-453a-aebd-e22e38b62996
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1736974
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1736974 Sample: top1miku.arm7.elf Startdate: 15/07/2025 Architecture: LINUX Score: 68 24 109.202.202.202, 80 INIT7CH Switzerland 2->24 26 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->26 28 3 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Mirai 2->34 36 Sample is packed with UPX 2->36 8 top1miku.arm7.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 top1miku.arm7.elf 8->14         started        16 top1miku.arm7.elf 8->16         started        18 top1miku.arm7.elf 8->18         started        process6 20 top1miku.arm7.elf 14->20         started        22 top1miku.arm7.elf 14->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-15 12:13:27 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=ww6oje6qkay3urdaqbzc36zhblwhzf74in4omolshvrxvxvhqtja._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250715-pdv4gsep2v/
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/087aa45e-758d-4af0-a4f9-eb93aed31375
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/b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2

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: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 b5bce493d05031ba446080722dfb270aec7c97fc4378e639723d637adea784d2

(this sample)

Mirai

elf 0863171adbd8ec2b2b0a1faa55437a9b128a13ae8bfa883711ca325136cd0247

  
URLhaus
https://urlhaus.abuse.ch/url/3581126/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 0863171adbd8ec2b2b0a1faa55437a9b128a13ae8bfa883711ca325136cd0247
  
Dropping
MD5 2e5c9df92f0adbcd72e6063290002f9f

Comments