MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345. 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


Gafgyt


Vendor detections: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345
SHA3-384 hash: 3db0ce040ad53acecad8194074e812473029c0fe3025197bb1ffcf0de1f358d08c46160710dd333f5d3fd635fc0605d4
SHA1 hash: 522d2691212a34cc411d4824a2c7bd20b46f267a
MD5 hash: 1ef2b8070f36d2dce49e376ed5127fdc
humanhash: diet-salami-april-connecticut
File name:a
Download: download sample
Signature Gafgyt
Create hunting rule
File size:42'559 bytes
First seen:2026-04-25 14:52:36 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:G1kNnUB9rSwYp9LimpnQoV04lQDVYbgXCfi8q90HW6big+Dx0Vx:B8Swq9LimpVrvfiH0HWsa+x
TLSH T18513E1D3D7B9EDD5C4B6697404520740AC83F4AB98BF1F7B08A82AFC8ED25132B55B80
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 gafgyt

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b70b2399-48f4-4f57-91d4-69430f6fedde/
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Collects information on the RAM
Kills processes
Sends data to a server
Launching a process
Creating a file in the %temp% directory
Collects information on the CPU
Receives data from a server
Changes access rights for a file
Sets a written file as executable
Runs as daemon
Traces processes
Substitutes an application name
Deleting of the original file
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Gathering data
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
custom
Botnet:
unknown
Number of open files:
16
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-04-24T22:24:00Z UTC
Last seen:
2026-04-26T12:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1d7ebcde-26f7-47fd-a8c5-e734677b4883
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1904653
Signature
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1904653 Sample: a.elf Startdate: 25/04/2026 Architecture: LINUX Score: 76 39 54.39.101.43, 34484, 44388 OVHFR Canada 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Sample is packed with UPX 2->45 10 a.elf 2->10         started        13 gnome-session-binary sh gsd-screensaver-proxy 2->13         started        15 gdm3 Default 2->15         started        17 2 other processes 2->17 signatures3 process4 signatures5 53 Sample deletes itself 10->53 19 a.elf 10->19         started        process6 process7 21 a.elf 19->21         started        file8 37 /etc/init.d/sysd, POSIX 21->37 dropped 47 Sample tries to set files in /etc globally writable 21->47 49 Drops files in suspicious directories 21->49 51 Sample tries to persist itself using System V runlevels 21->51 25 a.elf sh 21->25         started        27 a.elf 21->27         started        signatures9 process10 process11 29 sh cp 25->29         started        31 a.elf 27->31         started        33 a.elf 27->33         started        35 a.elf 27->35         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-04-25 03:15:10 UTC
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4wtbcnbv56jv3xgjewnbh44aexaiidsrtcaanzfqe5e6ublyncq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai antivm botnet credential_access defense_evasion discovery linux persistence upx
Link:
https://tria.ge/reports/260425-r967qsbz2x/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Traces itself
Family: Mirai
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: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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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

Gafgyt

elf 4f2d3089a1af7c9aeee6492cd09f9c012e0420728cc4003725813a4f502bc345

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3831412/
  
Delivery method
Distributed via web download

Comments