MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca. 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

Mirai

Vendor detections: 13

Intelligence 13 IOCs YARA 30 File information Comments

SHA256 hash:	837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca
SHA3-384 hash:	fd6a0bd31ed2a9f8f79de6d7ad70ab936472e523bf835997e0f22f1f5a6ee198dd9ed849d3147d87a52532819b64b5d5
SHA1 hash:	68e8cedd3373db55ad8f4ab3777d45e489850efa
MD5 hash:	237e77d0c05cf9c6520ceace58eebc17
humanhash:	undress-lake-sink-music
File name:	ssh
Download:	download sample
Signature	Mirai Create hunting rule
File size:	154'205 bytes
First seen:	2025-07-11 23:05:51 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	3072:8QtM6BgpO9RofRxL5qwGm01EUMAG8nHOD1lHCsy2Q6mmFA8hNhDlLgNU:wVkfmEJMzRDrdmmFA8hNhDlLgNU
TLSH	T16AE3CA2AF1428777D193427022DDEE626C316EE4379AB01B33B07AB46DB74872D15E8D
telfhash	t1f0315611943546142fb39928acbd56b315221b2323586f716f25c5cc49260e1e93dd0f
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 :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL

Sanesecurity.Malware.29052.TSource.UNOFFICIAL

Unix.Trojan.Gafgyt-6981154-0

Unix.Dropper.Mirai-7135944-0

Unix.Dropper.Mirai-7136018-0

Unix.Dropper.Mirai-7136031-0

Unix.Dropper.Mirai-7139229-0

Unix.Dropper.Mirai-7540662-0

Verdict:

Clean

Score:

84.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=687198f7900df8e7f86a022dlinux22vpnfull_triage

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sends data to a server

Creating a file

Sets a written file as executable

Launching a process

Deleting a recently created file

Connection attempt

Kills processes

DNS request

Substitutes an application name

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

gcc lolbin obfuscated remote

Link:

https://www.filescan.io/uploads/687198e980b46be06ea0af8c/reports/7dc0d1b7-979e-44f4-806d-bee8e717888c/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

Packer:

not packed

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

true

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca

Behaviour

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/2690ae93-9f4a-4c02-880c-bb46b8d25966

Behavior Graph:

Download SVG

Malware family:

Gafgyt

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/88769a11-b4e1-49a3-9aff-8b7ed7afd0b8

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca/

Threat name:

Linux.Backdoor.Gafgyt

Status:

Malicious

First seen:

2025-07-11 23:06:15 UTC

File Type:

ELF64 Little (Exe)

AV detection:

17 of 24 (70.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=qn6pbs76vvnsuj4un7we3cwbinmbdfeo33igz5xjyryztyhqrhfa._file

Result

Malware family:

gafgyt

Score:

10/10

Tags:

family:gafgyt defense_evasion discovery linux

Link:

https://tria.ge/reports/250711-23hkxahn9z/

Behaviour

Enumerates kernel/hardware configuration

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:

trojan gafgyt mirai Unix.Trojan.Gafgyt-6981154-0

YARA:

Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_a6a2adb9 Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_f3d83a74 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_e0673a90 Linux_Trojan_Gafgyt_a0a4de11 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_09c3070e Linux_Trojan_Gafgyt_46eec778 Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_d0c57a2e Linux_Trojan_Gafgyt_656bf077 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_dd0d6173 Linux_Trojan_Gafgyt_779e142f Linux_Trojan_Gafgyt_cf84c9f2 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_862c4e0e Linux_Trojan_Gafgyt_32eb0c81 Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_3fe3c668 Linux_Trojan_Mirai_637f2c04 elf_bashlite_auto Linux_Gafgyt_May_2024

Link:

https://app.threat.zone/submission/520f2200-70f8-4216-9474-0e7beacfa458

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/837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca

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 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:	elf_bashlite_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects elf.bashlite.

Rule name:	Linux_Gafgyt_Generic Create hunting rule
Author:	albertzsigovits
Description:	Generic Approach to Mirai/Gafgyt samples

Rule name:	Linux_Trojan_Gafgyt_09c3070e Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_0cd591cd Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_28a2fe0c Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_32eb0c81 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_33b4111a Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_46eec778 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_620087b9 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_656bf077 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_779e142f Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_807911a2 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_862c4e0e Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_9e9530a7 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_a0a4de11 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_a33a8363 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_a6a2adb9 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_cf84c9f2 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d0c57a2e Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d4227dbf Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d996d335 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_dd0d6173 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_e0673a90 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_f3d83a74 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_3fe3c668 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_637f2c04 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 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

Mirai

elf 837cf0cbfead5b2a27946fec4d8ac1435811948eded06cf6e9c47199e0f089ca

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3576535/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

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