MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63ef1254493c2ee23b9902bcdef303ed8192d109c9aadde7ee35def4b869aaa7. 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 12 File information Comments

SHA256 hash: 63ef1254493c2ee23b9902bcdef303ed8192d109c9aadde7ee35def4b869aaa7
SHA3-384 hash: ad9e312ee16582914284ce1a5a5031840aab4b8cfc682f6ed4eeace7b201b9ec9251662fe3b3f1ec3ae6c79d842b4f71
SHA1 hash: a7a1e499d9a8a7af062dae641f25f738d8777f98
MD5 hash: 90a69ebc3c8119ef7ad5d672b5a4e2e5
humanhash: kitten-three-montana-crazy
File name:fcf5437a7884cdecc7fd0f9b88bf6e33ec02748caedea247732db9ad3993e5fc.elf
Download: download sample
Signature Mirai
File size:232'891 bytes
First seen:2026-08-12 04:29:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:z2mzSDnbOAdujifB2cuxwEa/PLT5F36UQYEHb3IaXrMZLM/R/bDQ3:CfniSueffuxwEa/PLT5F36ZYMbYaIZgC
TLSH T158341B56F6418F13C4D627BAFACF42463333A79493DB730699286BB43BC779A4E12901
telfhash t1a74113b45b2e58155aa1df6cd9fa2772451ec6211b41ef33ef67c8dc140a44ee226c0f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 fcf5437a7884cdecc7fd0f9b88bf6e33ec02748caedea247732db9ad3993e5fc
File size (compressed) :80'512 bytes
File size (de-compressed) :232'891 bytes
Format:linux/arm
Packed file: fcf5437a7884cdecc7fd0f9b88bf6e33ec02748caedea247732db9ad3993e5fc

Intelligence


File Origin
# of uploads :
1
# of downloads :
36
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes the time when the file was created, accessed, or modified
Opens a port
Creating a file
Launching a process
Changes access rights for a file
Connection attempt
Sets a written file as executable
Runs as daemon
Creating a file in the %temp% directory
Kills processes
Changes access rights for a written file
Receives data from a server
Sends data to a server
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expand gcc lolbin mirai rust
Status:
terminated
Behavior Graph:
%3 guuid=f9f4c170-1b00-0000-f429-1e6152090000 pid=2386 /usr/bin/sudo guuid=30aa3873-1b00-0000-f429-1e6158090000 pid=2392 /tmp/sample.bin guuid=f9f4c170-1b00-0000-f429-1e6152090000 pid=2386->guuid=30aa3873-1b00-0000-f429-1e6158090000 pid=2392 execve
Threat name:
Linux.Trojan.Gafgyt
Status:
Malicious
First seen:
2026-08-12 04:30:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Reads system network configuration
Reads process memory
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Modifies Watchdog functionality
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:ach_202503_elf_Mirai
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:botnet_Yakuza
Author:NDA0E
Description:Yakuza botnet
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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

File information


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

Web download

Mirai

elf 63ef1254493c2ee23b9902bcdef303ed8192d109c9aadde7ee35def4b869aaa7

(this sample)

Comments