MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e. 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: 11


Intelligence 11 IOCs YARA 11 File information Comments
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SHA256 hash: 618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e
SHA3-384 hash: 69ff5ce261c8c8ff6a1422482294f6af33f44fa3aa8d072925d64bb3278498fbb5419bba557afb5fb0843fd171035664
SHA1 hash: 24eef6b327ed12c571f0334f1fa1759284d592d5
MD5 hash: 6238fec11bd49e8c6b7630c1e0764a86
humanhash: mississippi-nitrogen-dakota-wisconsin
File name:x-3.2-.Sakura
Download: download sample
Signature Gafgyt
Create hunting rule
File size:304'053 bytes
First seen:2025-06-30 10:42:20 UTC
Last seen:2025-07-01 01:45:13 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:WbR9ZTFtAYn1mUHLsn709J5wGtwifI9jZ+SsZjgKGSNnMawCq79g0DY:WlxthQWAS5wGtwFjASsZjgKGSNnMawCl
TLSH T1E6546E46E203C5F3CC420EF1225BBFA90522BB3A4D2B9986FB197DB0AB504C57219FD5
telfhash t108a16355983d49e9af634d29987d6bf31597a02522a2be28ff26ccc0449f01df514e0f
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 mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
80
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30395.LC.UNOFFICIAL
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SecuriteInfo.com.Linux.Siggen.2205.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30420.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32134.LX.BOT.UNOFFICIAL
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Unix.Trojan.Gafgyt-6981154-0
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Unix.Trojan.Tsunami-6981155-0
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Unix.Trojan.Gafgyt-6981156-0
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Unix.Trojan.Tsunami-6981163-0
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Unix.Trojan.Gafgyt-6981165-0
Create hunting rule

Unix.Trojan.Mirai-6981169-0
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Unix.Dropper.Mirai-7135935-0
Create hunting rule

Unix.Dropper.Mirai-7135940-0
Create hunting rule

Unix.Dropper.Mirai-7135945-0
Create hunting rule

Unix.Dropper.Mirai-7135968-0
Create hunting rule

Unix.Dropper.Mirai-7136072-0
Create hunting rule

Unix.Dropper.Mirai-7136105-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Dropper.Mirai-7139232-0
Create hunting rule

Unix.Trojan.Gafgyt-7643791-0
Create hunting rule

Unix.Proxy.Mirai-7844054-0
Create hunting rule

Unix.Trojan.Gafgyt-9396656-0
Create hunting rule

Unix.Dropper.Gafgyt-9762292-0
Create hunting rule

Unix.Trojan.Gafgyt-9762295-0
Create hunting rule

Unix.Trojan.Gafgyt-9809564-0
Create hunting rule

Unix.Trojan.Mirai-9847812-0
Create hunting rule

Unix.Trojan.Mirai-9864781-0
Create hunting rule

Unix.Trojan.Mirai-9943729-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
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Unix.Trojan.Mirai-5607483-0
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Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686272e937c343677947b476linux22vpnfull_triage
Tags:
gafgyt mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Connection attempt
Manages services
Kills processes
Sets a written file as executable
Launching a process
Collects information on the CPU
Changes the time when the file was created, accessed, or modified
Collects information on the OS
Writes files to system directory
Replaces system binary files
Substitutes an application name
Deletes a system binary file
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
2
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
type:Gafgyt 38.34.15.2:21451
UDP botnet C2(s):
not identified
Malware family:
Gafgyt
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6751bcca-b666-4f34-ba65-8e0fd5aa1941
Result
Threat name:
Gafgyt, Mirai
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Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1725431
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains symbols with names commonly found in malware
Drops files in suspicious directories
Drops invisible ELF files
Malicious sample detected (through community Yara rule)
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Opens /proc/net/* files useful for finding connected devices and routers
Protects files from modification
Sample deletes itself
Uses dynamic DNS services
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1725431 Sample: x-3.2-.Sakura.elf Startdate: 30/06/2025 Architecture: LINUX Score: 100 46 btorgbds.duckdns.org 2->46 48 btorgbds.duckdns.org 38.34.15.2, 21451, 44424, 44426 COGENT-174US United States 2->48 50 daisy.ubuntu.com 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for dropped file 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 60 3 other signatures 2->60 8 x-3.2-.Sakura.elf 2->8         started        signatures3 58 Uses dynamic DNS services 46->58 process4 file5 40 /usr/lib/.tqlq8uqu, ELF 8->40 dropped 42 /root/.bashrc, ASCII 8->42 dropped 44 /root/.bash_profile, ASCII 8->44 dropped 70 Drops invisible ELF files 8->70 72 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 8->72 74 Opens /proc/net/* files useful for finding connected devices and routers 8->74 12 x-3.2-.Sakura.elf sh 8->12         started        14 x-3.2-.Sakura.elf sh 8->14         started        16 x-3.2-.Sakura.elf sh 8->16         started        18 64 other processes 8->18 signatures6 process7 process8 20 sh cp 12->20         started        24 sh cp 14->24         started        26 sh cp 16->26         started        28 sh dd 18->28         started        30 sh dd 18->30         started        32 sh dd 18->32         started        34 59 other processes 18->34 file9 36 /usr/sbin/init, ELF 20->36 dropped 62 Writes identical ELF files to multiple locations 20->62 64 Drops files in suspicious directories 20->64 38 /usr/bin/systemctl, ELF 26->38 dropped 66 Protects files from modification 34->66 68 Sample deletes itself 34->68 signatures10
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-06-30 11:37:28 UTC
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mghrovrxqhcvdiv4ne7yspjhi25hbyg5bah7ujl253l54ume7zha._file
Result
Malware family:
gafgyt
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Score:
  10/10
Tags:
family:gafgyt botnet credential_access defense_evasion discovery linux persistence privilege_escalation rootkit
Link:
https://tria.ge/reports/250630-nr7trsdl3v/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Reads CPU attributes
Modifies Bash startup script
Creates/modifies environment variables
Enumerates running processes
Write file to user bin folder
Writes file to system bin folder
File and Directory Permissions Modification
Executes dropped EXE
Loads a kernel module
OS Credential Dumping
Unexpected DNS network traffic destination
Detected Gafgyt variant
Gafgyt family
Gafgyt/Bashlite
Malware Config
C2 Extraction:
239.255.255.250:1900
Verdict:
Malicious
Tags:
botnet trojan gafgyt tsunami Unix.Trojan.Gafgyt-6981154-0
YARA:
botnet_dayzddos Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Tsunami_0fa3a6e9 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/726d204c-3f00-44f6-975e-8bf222a7c8d4
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
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Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:botnet_dayzddos
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Author:NDA0E
Description:dayzddos botnet
Rule name:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Gafgyt_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Tsunami_0fa3a6e9
Create hunting rule
Author:Elastic Security
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
Create hunting rule
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

Gafgyt

elf 618f17563781c551a2bc693f893d2746ba70e0dd080ffa257aeed7de5184fe4e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3571108/
  
Delivery method
Distributed via web download

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