MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f. 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: a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f
SHA3-384 hash: c13a0ee2ce7f35f440d2b74dd3022223efd43a11e4efeb2b1d91c91e7261d68b68efa00929c1a99b115538ed36240282
SHA1 hash: 7c442c46055ecdb36b9f12b2ceb32390d0c09ad4
MD5 hash: 348cb0d031c9eb9cb415ae2c24902658
humanhash: uniform-finch-three-red
File name:rep.i486
Download: download sample
Signature Gafgyt
Create hunting rule
File size:40'992 bytes
First seen:2025-04-14 21:06:56 UTC
Last seen:2025-04-21 00:33:25 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:1qDhnHBru/5uOawV4M1SC2l6WUi0kFMFBedlb0LUnbcuyD7UoUR8q:InFg5uORVF83l6WUrVVUnouy8z
TLSH T17C03F162DAD58A1ED32F603F517FF96640203909BAD4A2C1FF58253E915322EF65C393
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 :
2
# of downloads :
88
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-10028259-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67fd7f5dd6e7c3effad2ed01linux22vpnfull_triage
Tags:
phishing mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Runs as daemon
Connection attempt
Receives data from a server
Opens a port
DNS request
Sends data to a server
Kills processes
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/67fd78fa90767142c3d3dcdc/reports/ee11c783-ad0a-4c4e-8bcc-ad8822d7250b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
custom
Botnet:
unknown
Number of open files:
17
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f
Behaviour
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ba6f3ad6-6e83-40cc-b935-a22525471538
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1664902
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1664902 Sample: rep.i486.elf Startdate: 14/04/2025 Architecture: LINUX Score: 60 25 37.113.76.84, 23 YAR-ASRU Russian Federation 2->25 27 59.14.103.150, 23 YABESK-AS-KRYABESKKR Korea Republic of 2->27 29 99 other IPs or domains 2->29 33 Malicious sample detected (through community Yara rule) 2->33 35 Multi AV Scanner detection for submitted file 2->35 8 rep.i486.elf 2->8         started        10 gdm3 Default 2->10         started        12 gdm3 Default 2->12         started        14 16 other processes 2->14 signatures3 process4 process5 16 rep.i486.elf 8->16         started        process6 18 rep.i486.elf 16->18         started        21 rep.i486.elf 16->21         started        23 rep.i486.elf 16->23         started        signatures7 31 Sample tries to kill multiple processes (SIGKILL) 18->31
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f/
Threat name:
Linux.Packed.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-04-14 21:07:08 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vapk6s3o5zjwmd33fe6qik2djhz4qdglf3mvbbbntfxbdjcsdkpq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/250414-zycgzs1my5/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Renames itself
Contacts a large (26249) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10028259-0
YARA:
n/a
Link:
https://app.threat.zone/submission/6020d5cf-dda7-4172-9fdb-8e1c63b1bd59
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_antiunpack_elf32
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:UPX Anti-Unpacking technique to magic renamed for ELF32

File information

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

Web download

Gafgyt

elf a81eaf4b6eee53660f7b293d042b4349f3c80ccb2ed950842d996e11a4521a9f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3423333/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3423334/

Comments