MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0. 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

CoinMiner

Vendor detections: 9

Intelligence 9 IOCs YARA 24 File information Comments

SHA256 hash:	f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0
SHA3-384 hash:	41cffed6ecff7a6ae268a30bc21acf09a2bb7c949900552ad0d39c3d8bd84c9d955884ecac7ab503c8b0bcbdf5b5743f
SHA1 hash:	90f9419691ef4f1caceed152073ed1f8a1661075
MD5 hash:	ffbc702a796884567b4133a09e6dc27d
humanhash:	juliet-one-chicken-massachusetts
File name:	28e0c4d5bc6675537ba47c6529877a3194a29585fb86477f66bf13c79252d2f0
Download:	download sample
Signature	CoinMiner Create hunting rule
File size:	22'347'911 bytes
First seen:	2026-09-26 18:26:23 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	393216:B0/mXGavQtMKsRPsLjm2Kqd5RTEdLs0OCKo2gQtMu2Kqd5RTEdH:S/myeRKHNEdXtY0NEdH
TLSH	T11E37CF53F8D60C90C4FDC2B199798226E971785D0B7923DB56A0B7302F337E16A7AB84
telfhash	t1ea72cd714a7c74b1a6a6d960f37374b4e53318b167f834b00063ada2efd1e851caac27
gimphash	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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:	CoinMiner elf upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 28e0c4d5bc6675537ba47c6529877a3194a29585fb86477f66bf13c79252d2f0

UPX unpacked

This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.

File size (compressed) :	16'604'752 bytes
File size (de-compressed) :	22'347'911 bytes
Format:	linux/amd64
Packed file:	28e0c4d5bc6675537ba47c6529877a3194a29585fb86477f66bf13c79252d2f0

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/22cb0053-164c-4207-a227-6129d058b345/

Detection(s):

Unix.Trojan.Generic-9910178-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creates directories

Runs as daemon

Deleting a recently created file

Launching a process

Changes the time when the file was created, accessed, or modified

Collects information on the RAM

Connection attempt

Creating a file in the %temp% subdirectories

Sets a written file as executable

Creates or modifies symbolic links

Receives data from a server

Creating a file in the %temp% directory

Manages services

Collects information on the OS

Collects information on the CPU

Sends data to a server

Changes owner for a written file

Deletes a file

Removes directories

Collects information on the network activity

Kills processes

Changes access rights for a written file

Creating a process from a recently created file

Creates directories in a temporary directory

Creating a file

Accesses SSH

Writes files to system subdirectory

Writes files to system directory

Substitutes an application name

Deleting of the original file

Performs a bruteforce attack in the network

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

anti-vm crypto expand golang lolbin obfuscated packed upx

Link:

https://www.filescan.io/uploads/6ab80e840cd9be2513a3133e/reports/8bd7e843-5b78-4142-a074-35001c5d10a5/overview

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2026-09-12T08:46:00Z UTC

Last seen:

2026-09-12T09:28:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/fb6c1dea-7b50-4c21-b93f-1e0162d009ae

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0

Gathering data

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6m7xbha5wgzffw6k4mrlenak7aopu4xzyyxgbq34k7xu6dmbkhia._file

Result

Malware family:

xmrig_linux

Score:

10/10

Tags:

family:xmrig_linux antivm command_and_control credential_access defense_evasion discovery execution lateral_movement linux miner persistence privilege_escalation upx

Link:

https://tria.ge/reports/260926-w3v84szakg/

Behaviour

GoLang User-Agent

Writes file to tmp directory

Writes file to shm directory

System Network Configuration Discovery

Reads runtime system information

Enumerates kernel/hardware configuration

Reads CPU attributes

Creates a desktop entry file

Checks CPU configuration

Changes its process name

UPX packed file

Modifies Bash startup script

Adds a user to the system

Creates/modifies Cron job

Creates/modifies environment variables

Enumerates running processes

Modifies systemd

Reads list of loaded kernel modules

Removes the immutable protection flag from a file

Write file to user bin folder

Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Renames itself

OS Credential Dumping

Modifies sudoers policy

Executes dropped EXE

Deletes itself

File and Directory Permissions Modification

Outbound SSH connection to private host

Modifies password files for system users/ groups

Adds new SSH keys

XMRig Miner payload

Family: xmrig

Malware family:

UPX

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f33f709c1db1/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.12

Link:

https://yomi.yoroi.company/submissions/f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0

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:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	Detect_Go_GOMAXPROCS Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata

Rule name:	DIICOT_2026_kit_garble Create hunting rule
Author:	eFeSpain
Description:	DIICOT/Mexals 2026 kit - garble package names shared by the bot and the loader
Reference:	https://blog.efespain.com/en/chapter-27/

Rule name:	enterpriseapps2 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Enterprise apps

Rule name:	enterpriseunix2 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Enterprise UNIX

Rule name:	F01_s1ckrule Create hunting rule
Author:	s1ckb017

Rule name:	GoBinTest Create hunting rule

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

Rule name:	golang_duffcopy_amd64 Create hunting rule

Rule name:	Golang_Find_CSC846 Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	Golang_Find_CSC846_Simple Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	LIN_Sample_Unique_4c099562 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (elf, etat binaire)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

Rule name:	TH_Generic_MassHunt_Linux_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Linux malware mass-hunt rule - 2026
Reference:	https://cyfare.net/

Rule name:	unixredflags3 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Hunts for UNIX red flags

Rule name:	upx_packed_elf_v1 Create hunting rule
Author:	RandomMalware

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

File information

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

CoinMiner

elf 28e0c4d5bc6675537ba47c6529877a3194a29585fb86477f66bf13c79252d2f0

CoinMiner

elf f33f709c1db1b252dbcae322b2340af81cfa72f9c62e60c37c57ef4f0d8151d0

(this sample)

Dropped by

SHA256 28e0c4d5bc6675537ba47c6529877a3194a29585fb86477f66bf13c79252d2f0

Dropped by

MD5 d6c5e0e4369dffa2af8a695f99e3a4ac

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