MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe
SHA3-384 hash: e1efb55d8f5c9b40e942f5586f788584eda8e0b87a7cda28940c208f84bed21fce57b611be88d1a783544e84ee9dff60
SHA1 hash: 8502766e4524019e92867f8c1b9b5d3aa272562b
MD5 hash: 5e7d2a42811a2ededc1a8634a32aa376
humanhash: oklahoma-snake-twelve-spaghetti
File name:bot.x86_64
Download: download sample
Signature Gafgyt
Create hunting rule
File size:48'096 bytes
First seen:2026-02-20 05:34:04 UTC
Last seen:2026-02-21 12:37:21 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:yjvEedUeFn2JatWZaHYZLY/TBktncrcLuv8aq6FYBvTrIIii:yge+Vw4ZLATBk1cgO8xjTrIm
TLSH T14023E1B7838BE375DC3D6BB71A2A8144ADE9A917B2811F1F081EB09F4C64B603465B46
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 adliwahid
Tags:gafgyt UPX
File size (compressed) :48'096 bytes
File size (de-compressed) :131'552 bytes
Format:linux/amd64
Unpacked file: c12dd3159caeec7b5566e005e25348710050901e899a371ccc1b5d246cdf93d3

Intelligence

File Origin
# of uploads :
5
# of downloads :
46
Origin country :
NL NL
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/def73b50-e7f1-4d7d-a059-1dad64c6a7a7/
Detection(s):
SecuriteInfo.com.Linux.DDoS.2637.3226.32138.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Sends data to a server
DNS request
Connection attempt
Substitutes an application name
Deleting of the original file
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7648375f-0364-42e4-be64-669d2794f666
Behavior Graph:
Download SVG
%3 guuid=93c66c58-1900-0000-423b-dafcf5070000 pid=2037 /usr/bin/sudo guuid=764cce5a-1900-0000-423b-dafcf8070000 pid=2040 /tmp/sample.bin mprotect-exec guuid=93c66c58-1900-0000-423b-dafcf5070000 pid=2037->guuid=764cce5a-1900-0000-423b-dafcf8070000 pid=2040 execve guuid=8166c45b-1900-0000-423b-dafcf9070000 pid=2041 /tmp/sample.bin zombie guuid=764cce5a-1900-0000-423b-dafcf8070000 pid=2040->guuid=8166c45b-1900-0000-423b-dafcf9070000 pid=2041 clone guuid=0988cd5b-1900-0000-423b-dafcfa070000 pid=2042 /tmp/sample.bin delete-file dns net send-data zombie guuid=8166c45b-1900-0000-423b-dafcf9070000 pid=2041->guuid=0988cd5b-1900-0000-423b-dafcfa070000 pid=2042 clone 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=0988cd5b-1900-0000-423b-dafcfa070000 pid=2042->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 1386B 1568d235-c854-5b36-b60d-a6f724b0d55e xnsjs.myddns.me:7080 guuid=0988cd5b-1900-0000-423b-dafcfa070000 pid=2042->1568d235-c854-5b36-b60d-a6f724b0d55e send: 574B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e2bbd59-b85e-4e52-953f-57c6ab0be0b3
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe/
Verdict:
Malicious
Threat:
Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Suspicious
First seen:
2026-02-20 06:13:22 UTC
AV detection:
5 of 38 (13.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wr3mzp6nqh3w4dbjgztwihh3qx7tda34apfcdhj4zjvy4m2yx7a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery linux upx
Link:
https://tria.ge/reports/260220-f9mmjsay8h/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes itself
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe

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: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 f5a3b665fe6c0fbb706149b33b20e7dc2ff98c1be01e510ce9e6535c719ac5fe

(this sample)

Mirai

elf c12dd3159caeec7b5566e005e25348710050901e899a371ccc1b5d246cdf93d3

  
Dropping
SHA256 c12dd3159caeec7b5566e005e25348710050901e899a371ccc1b5d246cdf93d3
  
Dropping
MD5 347fa6b07b5648fcb4413dafb2b4a9e8
  
URLhaus
https://urlhaus.abuse.ch/url/3781627/
  
Delivery method
Distributed via web download

Comments