MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a436db126bb838e2f597d72f95cb6bde47b18bcd4e1279eba3feeadee6fd25b. 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 15 File information Comments

SHA256 hash: 7a436db126bb838e2f597d72f95cb6bde47b18bcd4e1279eba3feeadee6fd25b
SHA3-384 hash: 07ffe6f457beed6058bca2191f4aa0d5c76effe9c965d840724c48bd04c30cd1ed99da4421e0230ec6d61455ec4bf0e9
SHA1 hash: 820cb858b00e39a0fe4358378be1be0765255f78
MD5 hash: 64f1a6e50b68fe2609f7102a5f38d9d9
humanhash: lake-sweet-quiet-solar
File name:ciubuc_mpsl
Download: download sample
Signature Mirai
File size:3'141'480 bytes
First seen:2026-05-02 18:49:11 UTC
Last seen:2026-05-02 21:40:16 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:GP9xXLFQhkqKOtoHmirNEopz2DqqViDFWJDcJRK+tRyOp6vPXw:2X53RbW5+tRhp6Xw
TLSH T114E52A156F500FFBD86FCC3346E90B12258DA50662D53F3AB478D914FA9BA0E4AD3878
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
2
# of downloads :
65
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Kills processes
Opens a port
Changes access rights for a written file
Sends data to a server
Removes directories
Changes access rights for a file
Sets a written file as executable
Creating a file
Deleting a recently created file
Connection attempt
Accesses SSH
Traces processes
Deletes a system binary file
Substitutes an application name
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-05-02T15:55:00Z UTC
Last seen:
2026-05-03T03:46:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=4f40bf34-1700-0000-7126-e692c90e0000 pid=3785 /usr/bin/sudo guuid=ae483b36-1700-0000-7126-e692d50e0000 pid=3797 /tmp/sample.bin guuid=4f40bf34-1700-0000-7126-e692c90e0000 pid=3785->guuid=ae483b36-1700-0000-7126-e692d50e0000 pid=3797 execve
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-05-02 18:49:46 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes Audit logs
Deletes itself
Deletes journal logs
Modifies Watchdog functionality
Traces itself
Contacts a large (116287) amount of remote hosts
Creates a large amount of network flows
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_Yakuza
Author:NDA0E
Description:Yakuza botnet
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Author:Elastic Security
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information


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

Web download

Mirai

elf 7a436db126bb838e2f597d72f95cb6bde47b18bcd4e1279eba3feeadee6fd25b

(this sample)

  
Delivery method
Distributed via web download

Comments