MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4f84b1945a67c1a29771588da2fc1e3701abdff504c0f0b436e38918393d356. 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: 10


Intelligence 10 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4f84b1945a67c1a29771588da2fc1e3701abdff504c0f0b436e38918393d356
SHA3-384 hash: 6353c7721b2138a726d6947588b12310c2e7de2e79be485625cda3c1d7ef6d2b7059e26711c72d5eddd6fe639ee55a88
SHA1 hash: 9c09b4681167fdcf39d8533eec60b55214e474de
MD5 hash: 8d87e1c868fa4074219cf55d5d69e0ea
humanhash: xray-berlin-december-bakerloo
File name:morte.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:108'016 bytes
First seen:2025-12-03 22:40:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:hvCulDl79bmjmpLbNxln7yrXCjYBrixA:h6ulR7RmCp7gSWix
TLSH T191B34CC4E653D4F9EC0621342137FB379E76E1BF2329DE83D7A499366C92942C409A9C
telfhash t17731c7f9a7b60cd4abe09902f21e9721cc0d6b3b246476a70af65450736654343bfe3d
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 57faeb07f191524e8a4f5a07571e246e2a202cefef04932a252385e6faa8958c
File size (compressed) :44'708 bytes
File size (de-compressed) :108'016 bytes
Format:linux/i386
Packed file: 57faeb07f191524e8a4f5a07571e246e2a202cefef04932a252385e6faa8958c

Intelligence

File Origin
# of uploads :
1
# of downloads :
29
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/3653f19e-a500-4ee0-b1e0-8401da9364f5/
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Runs as daemon
Deleting a recently created file
Launching a process
Removes directories
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/6930bc8dbba50eaf041ff067/reports/c44bd722-0822-444b-82b8-efb22507686e/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/44497466-d730-4f8a-8402-28d45b166c31
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1825917
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1825917 Sample: morte.x86.elf Startdate: 03/12/2025 Architecture: LINUX Score: 88 39 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->39 41 54.217.10.153, 443, 49576 AMAZON-02US United States 2->41 43 54.247.62.1, 443 AMAZON-02US United States 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Yara detected Mirai 2->49 10 morte.x86.elf 2->10         started        12 xfce4-panel wrapper-2.0 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 9 other processes 2->16 signatures3 process4 process5 18 morte.x86.elf 10->18         started        20 wrapper-2.0 xfpm-power-backlight-helper 12->20         started        process6 22 morte.x86.elf 18->22         started        file7 37 /etc/init.d/sysd, POSIX 22->37 dropped 51 Sample tries to set files in /etc globally writable 22->51 53 Drops files in suspicious directories 22->53 55 Sample tries to persist itself using System V runlevels 22->55 26 morte.x86.elf 22->26         started        28 morte.x86.elf sh 22->28         started        signatures8 process9 process10 30 morte.x86.elf 26->30         started        33 morte.x86.elf 26->33         started        35 sh cp 28->35         started        signatures11 57 Manipulation of devices in /dev 30->57 59 Deletes system log files 30->59 61 Sample tries to kill multiple processes (SIGKILL) 33->61
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d4f84b1945a67c1a29771588da2fc1e3701abdff504c0f0b436e38918393d356
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d4f84b1945a67c1a29771588da2fc1e3701abdff504c0f0b436e38918393d356/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 22:41:23 UTC
File Type:
ELF32 Little (Exe)
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2t4ewgkfuz6buklxcwenul6b4nybvpp7kbga6c2dny4jda4t2nla._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd defense_evasion discovery linux persistence
Link:
https://tria.ge/reports/251203-2n3yashm5x/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Modifies init.d
Modifies rc script
Deletes Audit logs
Deletes journal logs
Deletes system logs
Malware Config
C2 Extraction:
b3ry.bounceme.net
Please note that we are no longer able to provide a coverage score for Virus Total.

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_804f8e7c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_93fc3657
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_a68e498c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
Create hunting rule
Author:Elastic Security
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 57faeb07f191524e8a4f5a07571e246e2a202cefef04932a252385e6faa8958c

Mirai

elf d4f84b1945a67c1a29771588da2fc1e3701abdff504c0f0b436e38918393d356

(this sample)

  
Dropped by
SHA256 57faeb07f191524e8a4f5a07571e246e2a202cefef04932a252385e6faa8958c
  
URLhaus
https://urlhaus.abuse.ch/url/3720181/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 c56b84a2f8b5317203262c138ad311c1

Comments