MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
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SHA256 hash: ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9
SHA3-384 hash: 617cb37c3f65e6c230798618b880735dc2fb59920d4c5b0007200a128b56f12753f0a86313964f81cad7c9c45176f3f9
SHA1 hash: b43cda35dba36c753ceb32f841fb01bc2336cbf7
MD5 hash: 12c79380469a3d1080a00e0bb22d720d
humanhash: yankee-steak-batman-yellow
File name:morte.spc
Download: download sample
Signature Mirai
Create hunting rule
File size:88'680 bytes
First seen:2025-07-03 16:29:13 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:cbgPQOLhGwkG7pus65N31rBdtfWTNd5JLAtUWYctkLqK:41J31H5CNvJLgSx
TLSH T149836C21F979193BC8D4A47B62F34336F1F6478A24AC8B0E7D710E8EBF2561026476B5
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
10
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Trojan.Mirai-7135916-0
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Unix.Dropper.Mirai-7136016-0
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Unix.Trojan.Mirai-8025795-0
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Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6866afe2c9eb97473765e932linux22vpnfull_triage
Tags:
ransomware
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/6866aff4ee5b1c8f3d268746/reports/fd5e8c53-0f2a-4ab3-885b-7e4a27a09252/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b4b06e4d-da18-4512-820b-3211cfda6d46
Behavior Graph:
Download SVG
%3 guuid=a013c77c-1b00-0000-afa0-c5c02b0d0000 pid=3371 /usr/bin/sudo guuid=fbebd27e-1b00-0000-afa0-c5c0320d0000 pid=3378 /tmp/sample.bin guuid=a013c77c-1b00-0000-afa0-c5c02b0d0000 pid=3371->guuid=fbebd27e-1b00-0000-afa0-c5c0320d0000 pid=3378 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/353c590d-9ff4-4a02-88ef-312079752f39
Result
Threat name:
Mirai, Xmrig
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Detection:
malicious
Classification:
spre.troj.mine
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1728144
Signature
Antivirus / Scanner detection for submitted sample
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1728144 Sample: morte.spc.elf Startdate: 03/07/2025 Architecture: LINUX Score: 84 28 izumisv1.cc 160.187.246.23, 12121, 55020 OCNNTTCommunicationsCorporationJP unknown 2->28 30 daisy.ubuntu.com 2->30 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected Mirai 2->38 40 Yara detected Xmrig cryptocurrency miner 2->40 8 morte.spc.elf 2->8         started        11 gvfsd-fuse fusermount 2->11         started        13 systemd dbus-daemon 2->13         started        15 10 other processes 2->15 signatures3 process4 signatures5 42 Found strings related to Crypto-Mining 8->42 17 morte.spc.elf 8->17         started        20 morte.spc.elf 8->20         started        44 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->44 22 sh xkbcomp 15->22         started        24 sh xkbcomp 15->24         started        process6 signatures7 32 Sample tries to kill multiple processes (SIGKILL) 17->32 26 morte.spc.elf 17->26         started        process8
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9/
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2025-07-03 16:29:20 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54ctdvb3ftpdul6f7ct6cam3dlsqp4hru4djtsjvxsah3ygcmleq._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/250703-tzdhsafp5v/
Gathering data
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/ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf ef0531d43b2cde3a2fc5f8a7e1019b1ae507f0f1a70699c935bc807de0c262c9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3570549/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3575583/

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