MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13. 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: b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13
SHA3-384 hash: fcf6fe876aa86c94d4d47fd2455980930d65ae2523e87dc4a7daa61377038b8c7011bfdae2a025512a94ee82e24808f4
SHA1 hash: 98b4597c453b6a0b6d0f1fe1d8daf3698091f519
MD5 hash: 4eeb7bdd25748b6e0b746783048c9e5b
humanhash: river-oklahoma-indigo-lion
File name:top1miku.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:64'472 bytes
First seen:2025-07-13 11:04:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:+3WCp2jqR5rXehb1QTLHLONaHjwTUoEUKv1aGXd7SAcfJ5kAFF6QgMVKZi/QYdRD:eWy2j8eh16qyMEULkWAePkU6bYdRD
TLSH T10D53021DB779B8CECC494479208E91E76A8934D8E1C94F4FF796880467A66CCB45CCBC
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) :64'472 bytes
File size (de-compressed) :206'572 bytes
Format:linux/mipsel
Unpacked file: 1787a6f9063aead27692ff0c6772549f068dc4f7302857b0c89e9d40e73f07cd

Intelligence

File Origin
# of uploads :
1
# of downloads :
19
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6873930bc9eb97473768ab5flinux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Opens a port
Connection attempt
Runs as daemon
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8a80c15b-e332-4efb-9538-f482a39543be
Behavior Graph:
Download SVG
%3 guuid=4c335cf4-1900-0000-3d45-728bc10a0000 pid=2753 /usr/bin/sudo guuid=930db6f6-1900-0000-3d45-728bc30a0000 pid=2755 /tmp/sample.bin guuid=4c335cf4-1900-0000-3d45-728bc10a0000 pid=2753->guuid=930db6f6-1900-0000-3d45-728bc30a0000 pid=2755 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/cd48111c-6e55-4e73-8b7d-0749e273c2a7
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1735176
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1735176 Sample: top1miku.mpsl.elf Startdate: 13/07/2025 Architecture: LINUX Score: 72 26 top1miku.duckdns.org 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 4 other IPs or domains 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected Gafgyt 2->36 38 Sample is packed with UPX 2->38 8 dash rm top1miku.mpsl.elf 2->8         started        10 dash rm 2->10         started        12 dash head 2->12         started        14 8 other processes 2->14 signatures3 40 Uses dynamic DNS services 26->40 process4 process5 16 top1miku.mpsl.elf 8->16         started        18 top1miku.mpsl.elf 8->18         started        20 top1miku.mpsl.elf 8->20         started        process6 22 top1miku.mpsl.elf 16->22         started        24 top1miku.mpsl.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-13 11:05:34 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwu6o4h3byk5fasnncypkpblkz35zl3qtzf2ez3i53vyg7ie7yjq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250713-m6yc7szpx2/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/89e45ffb-a2d5-4d85-b74c-88ce2f1d5665
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/b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13

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 b5a9e770fb0e15d2824d68b0f53c2b5677dcaf709e4ba26768eeeb837d04fe13

(this sample)

Mirai

elf 1787a6f9063aead27692ff0c6772549f068dc4f7302857b0c89e9d40e73f07cd

  
URLhaus
https://urlhaus.abuse.ch/url/3581188/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 1787a6f9063aead27692ff0c6772549f068dc4f7302857b0c89e9d40e73f07cd
  
Dropping
MD5 b073c72a6ecfb309954f3e877e72dc55

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments