MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601. 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: b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601
SHA3-384 hash: cf5da6d9867694db5aa2ea0cbf97ecc5f45f691ced1ff244dee843b87b5b664c38b8f7b0a50edeef160f8439874714f0
SHA1 hash: 5dd4542ccd4cc1a98e494a37a106881c98b35c6b
MD5 hash: 760cff6c4eefe06648f57af94d4af002
humanhash: coffee-edward-violet-moon
File name:morte.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:43'456 bytes
First seen:2025-09-15 15:17:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:VA6I8dloZrq+MJ/QV7lW2Zcl1tawDZ0Yf2c90iDNgehBS5HJgGlzDpbuR1JC1:VA6I8OW+MJ/QVI2Zcl1I4/nxeVJuc1
TLSH T14913F17B850343DDE6BB69BF06F08A8135194E61A403DD2D3E02FBE69E5610C6D03EE5
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) :43'456 bytes
File size (de-compressed) :111'008 bytes
Format:linux/mips
Unpacked file: 042aca85b7dcc5d85050e85d169481e44640a63b2a189df1a9d045855a329497

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
no reply from clamd
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
Runs as daemon
Sets a written file as executable
Opens a port
Launching a process
Deletes a file
Connection attempt
Substitutes an application name
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/68c82e4373287948292a9c75/reports/db860378-b95e-4cca-a2a5-1ccd490ebe10/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
145
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-15T16:04:00Z UTC
Last seen:
2025-09-15T16:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6ad37cc0-ed37-413a-b489-db3ea459ff32
Behavior Graph:
Download SVG
%3 guuid=98c2e054-1900-0000-16a1-cd1bd7100000 pid=4311 /usr/bin/sudo guuid=cea90557-1900-0000-16a1-cd1bdf100000 pid=4319 /tmp/sample.bin guuid=98c2e054-1900-0000-16a1-cd1bd7100000 pid=4311->guuid=cea90557-1900-0000-16a1-cd1bdf100000 pid=4319 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3744d263-a208-44c8-ba70-e9afdfc2fb83
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1777872
Signature
Drops files in suspicious directories
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1777872 Sample: morte.mips.elf Startdate: 15/09/2025 Architecture: LINUX Score: 88 28 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->28 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected Mirai 2->38 40 Yara detected Xmrig cryptocurrency miner 2->40 42 Sample is packed with UPX 2->42 10 morte.mips.elf 2->10         started        signatures3 process4 signatures5 46 Found strings related to Crypto-Mining 10->46 13 morte.mips.elf 10->13         started        process6 process7 15 morte.mips.elf 13->15         started        file8 26 /etc/init.d/sysd, POSIX 15->26 dropped 30 Sample tries to set files in /etc globally writable 15->30 32 Drops files in suspicious directories 15->32 34 Sample tries to persist itself using System V runlevels 15->34 19 morte.mips.elf 15->19         started        22 morte.mips.elf sh 15->22         started        signatures9 process10 signatures11 44 Sample deletes itself 19->44 24 sh cp 22->24         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-09-15 15:18:36 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wrbzzaokpxyivs7vj2tm5sdvt4lgb4nmotuf6b7tlrabdariyyaq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery persistence upx
Link:
https://tria.ge/reports/250915-spwe6s1xdw/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Deletes itself
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b535528e-5157-40ba-b77c-192090204177
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/b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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

elf b4439c81ca7df08acbf54ea6cec8759f1660f1ac74e85f07f35c40118228c601

(this sample)

Mirai

elf 042aca85b7dcc5d85050e85d169481e44640a63b2a189df1a9d045855a329497

  
URLhaus
https://urlhaus.abuse.ch/url/3621210/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 042aca85b7dcc5d85050e85d169481e44640a63b2a189df1a9d045855a329497
  
Dropping
MD5 c2b812962be48553df7da7b7c8a8a27a

Comments