MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
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SHA256 hash: c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2
SHA3-384 hash: 4ed2a5b361d6deb69a15a3ee425f230b33fab58a2fe1f63ae55b583529cf2ea8066ad44a4be06d397bfda61e85ddd5c4
SHA1 hash: c364b95183aee9ae0516b74df649effd85cb7f87
MD5 hash: fda177f60e3fc9ce78d1e2e0f1547ddd
humanhash: shade-pasta-utah-enemy
File name:klogd
Download: download sample
Signature Gafgyt
Create hunting rule
File size:134'703 bytes
First seen:2025-07-12 23:05:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:Ikt2q4R4npWj195TsW+nTAZKyQg3mu40lQh1UDh7jjNb:vzMj1TsWAAZKlimu40lQh1UDh7jjNb
TLSH T11ED30941E944472BC2D227FBE79E439D3B361E9857D733116938BDB02BE17982E39920
telfhash t1d1317522943446152fb3a928acfc56b311222a2323597f71af26c5cc44360f1e93dd0f
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 :
15
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
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Unix.Dropper.Mirai-7135944-0
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Unix.Dropper.Mirai-7136018-0
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Unix.Dropper.Mirai-7136031-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Trojan.Tsunami-9396652-0
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Unix.Trojan.Mirai-10033529-0
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Unix.Trojan.Mirai-10035004-0
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Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6872ea2ec9eb97473768a4f7linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
gcc rust
Link:
https://www.filescan.io/uploads/6872ea47a15b22faa8afcea8/reports/fc9ad565-eb0f-4fdf-9449-c9ab6d51a199/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9f3d5c5d-3756-42a4-b24b-05682e4b1a18
Behavior Graph:
Download SVG
%3 guuid=3e74c874-1900-0000-3360-bff76d100000 pid=4205 /usr/bin/sudo guuid=eb055976-1900-0000-3360-bff773100000 pid=4211 /tmp/sample.bin guuid=3e74c874-1900-0000-3360-bff76d100000 pid=4205->guuid=eb055976-1900-0000-3360-bff773100000 pid=4211 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/25f69710-5347-4133-8ae3-69d5492ac667
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1734978
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Sample tries to kill multiple processes (SIGKILL)
Terminates several processes with shell command 'killall'
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1734978 Sample: klogd.elf Startdate: 13/07/2025 Architecture: LINUX Score: 80 38 206.123.128.67, 43162, 65481 LEASEWEB-USA-NYC-11US United States 2->38 40 gay.energy 2->40 42 daisy.ubuntu.com 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Yara detected Gafgyt 2->48 50 Connects to many ports of the same IP (likely port scanning) 2->50 9 klogd.elf 2->9         started        signatures3 process4 signatures5 54 Opens /proc/net/* files useful for finding connected devices and routers 9->54 12 klogd.elf 9->12         started        process6 signatures7 56 Sample tries to kill multiple processes (SIGKILL) 12->56 15 klogd.elf sh 12->15         started        17 klogd.elf sh 12->17         started        19 klogd.elf sh 12->19         started        21 59 other processes 12->21 process8 process9 23 sh killall 15->23         started        26 sh killall 17->26         started        28 sh killall 19->28         started        30 sh killall 21->30         started        32 sh killall 21->32         started        34 sh killall 21->34         started        36 56 other processes 21->36 signatures10 52 Terminates several processes with shell command 'killall' 23->52
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2/
Threat name:
Linux.Trojan.Gafgyt
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Status:
Malicious
First seen:
2025-07-12 23:05:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zghih5wzezpfoq3wuz23n33vm5ywq7f6nuaorn2enzjuyf35slza._file
Result
Malware family:
gafgyt
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Score:
  10/10
Tags:
family:gafgyt defense_evasion discovery
Link:
https://tria.ge/reports/250712-23gzdawset/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads CPU attributes
Reads system network configuration
Enumerates running processes
Reads system routing table
File and Directory Permissions Modification
Executes dropped EXE
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135944-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7d9a838c-ac1c-475d-a0d0-53f4124bf07f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2

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:botnet_plaintext_c2
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Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:Linux_Gafgyt_Generic
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Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
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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 c98e83f6d9265e574376a675b6ef756771687cbe6d00e8b7446e534c177d92f2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576533/
  
Delivery method
Distributed via web download

Comments