MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009. 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: 10

Intelligence 10 IOCs YARA 41 File information Comments 1

SHA256 hash:	b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009
SHA3-384 hash:	8dbffa4ae4550aa0c932a5d9dbdef1c518f561c7ee62195e4a39f7b3c9f8608d2ce86842cb5ee5f22ce9aeea7b8d8e26
SHA1 hash:	4a29f43809849f7f4bb41e5f893dabf08039c628
MD5 hash:	e618dfd9a95448d12d6c6a850593badd
humanhash:	leopard-robin-april-ohio
File name:	e618dfd9a95448d12d6c6a850593badd
Download:	download sample
Signature	CoinMiner Create hunting rule
File size:	2'320'976 bytes
First seen:	2023-12-10 04:14:13 UTC
Last seen:	2023-12-10 06:19:52 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	a127c49b21e38f0087633caa7a1b221e (1 x CoinMiner)
ssdeep	49152:77UlEPOHsfBqQ6s9rp8S8iyHw/QsYf7XBESuNyrCxDG7DxCC:ZPOYWGN8VwaKSuNyeNGkC
TLSH	T138B53301F208C5D8C2D52870008ACDD59939FC4BD47F7B17327ABDAE7DB672AB65A10A
TrID	66.6% (.EXE) DOS Executable Generic (2000/1) 33.3% (.M) Maple Common Binary file (generic) (1001/2)
File icon (PE):
dhash icon	00000005000f0d16 (1 x CoinMiner)
Reporter	zbetcheckin
Tags:	64 CoinMiner exe signed

Code Signing Certificate

Organisation:	ALBIDANIA PARTNERS PARTICIPACOES LTDA:36740379000113
Issuer:	AC Certisign RFB G5
Algorithm:	sha256WithRSAEncryption
Valid from:	2022-12-15T13:53:03Z
Valid to:	2023-12-15T13:53:03Z
Serial number:	6fb953413d15d608295ed66563c8f12f
Intelligence:	5 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	5c5779d4b4911d96362d04c67f6e445b14bec0217915cc65f3f999503ed0b27e
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

325

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/464151/

Detection(s):

SecuriteInfo.com.Trojan.InjectNET.14.11309.12587.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Searching for analyzing tools

Сreating synchronization primitives

Creating a file

Creating a file in the %temp% directory

Enabling the 'hidden' option for recently created files

Running batch commands

Launching a process

Creating a process from a recently created file

Creating a process with a hidden window

Using the Windows Management Instrumentation requests

Connecting to a non-recommended domain

Sending an HTTP GET request

Searching for synchronization primitives

DNS request

Sending a custom TCP request

Creating a service

Launching a service

Loading a system driver

Enabling autorun for a service

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

explorer lolbin overlay packed shell32

Link:

https://www.filescan.io/uploads/65753b4718cffa73b1e0c0b4/reports/648526aa-1943-486a-8e66-a703482247d3/overview

Verdict:

Malicious

Labled as:

Win64/Packed.Obsidium

Link:

https://www.hybrid-analysis.com/sample/b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/506a40fc-f5ab-477a-8860-2e4e903f4b3b

Result

Threat name:

Xmrig

Detection:

malicious

Classification:

evad.mine

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1357156

Signature

Allocates memory in foreign processes

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Contains functionality to detect virtual machines (IN, VMware)

Detected Stratum mining protocol

Detected unpacking (changes PE section rights)

Found strings related to Crypto-Mining

Hijacks the control flow in another process

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Modifies the context of a thread in another process (thread injection)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

PE file has nameless sections

Query firmware table information (likely to detect VMs)

Sets debug register (to hijack the execution of another thread)

Tries to detect sandboxes and other dynamic analysis tools (window names)

Tries to evade debugger and weak emulator (self modifying code)

Uses schtasks.exe or at.exe to add and modify task schedules

Writes to foreign memory regions

Yara detected Xmrig cryptocurrency miner

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009/

Threat name:

Win64.Spyware.Lummastealer

Status:

Malicious

First seen:

2023-12-09 20:48:50 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

15 of 23 (65.22%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wilsjngnxepsn4zcvntcejaeuuwl7bzpxgfwwzopnaeq4dwfyaeq._file

Verdict:

unknown

Result

Malware family:

xmrig

Score:

10/10

Tags:

family:xmrig miner upx

Link:

https://tria.ge/reports/231210-et8peacadq/

Behaviour

Creates scheduled task(s)

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Suspicious use of SetThreadContext

Checks computer location settings

Executes dropped EXE

UPX packed file

Uses the VBS compiler for execution

XMRig Miner payload

xmrig

Unpacked files

SH256 hash:

b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009

MD5 hash:

e618dfd9a95448d12d6c6a850593badd

SHA1 hash:

4a29f43809849f7f4bb41e5f893dabf08039c628

Link:

https://www.unpac.me/results/49e7742d-2a04-4561-9c18-e7c14feecd8b/

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/b21724b4cdb91f26f322ab66222404a52cbf872fb98b6b65cf68090e0ec5c009

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:	BAZT_B5_NOCEXInvalidStream Create hunting rule

Rule name:	BitcoinAddress Create hunting rule
Author:	Didier Stevens (@DidierStevens)
Description:	Contains a valid Bitcoin address

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

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__ConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Glasses Create hunting rule
Author:	Seth Hardy
Description:	Glasses family

Rule name:	GlassesCode Create hunting rule
Author:	Seth Hardy
Description:	Glasses code features

Rule name:	html_auto_download_b64 Create hunting rule
Author:	Tdawg
Description:	html auto download

Rule name:	ldpreload Create hunting rule
Author:	xorseed
Reference:	https://stuff.rop.io/

Rule name:	MacOS_Cryptominer_Generic_333129b7 Create hunting rule
Author:	Elastic Security

Rule name:	MacOS_Cryptominer_Xmrig_241780a1 Create hunting rule
Author:	Elastic Security

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MALWARE_Win_CoinMiner02 Create hunting rule
Author:	ditekSHen
Description:	Detects coinmining malware

Rule name:	MAL_XMR_Miner_May19_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Monero Crypto Coin Miner
Reference:	https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/

Rule name:	MAL_XMR_Miner_May19_1_RID2E1B Create hunting rule
Author:	Florian Roth
Description:	Detects Monero Crypto Coin Miner
Reference:	https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/

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

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	QbotStuff Create hunting rule
Author:	anonymous

Rule name:	rig_win64_xmrig_6_13_1_xmrig Create hunting rule
Author:	yarGen Rule Generator
Description:	rig_win64 - file xmrig.exe
Reference:	https://github.com/Neo23x0/yarGen

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

Rule name:	Rooter Create hunting rule
Author:	Seth Hardy
Description:	Rooter

Rule name:	RooterStrings Create hunting rule
Author:	Seth Hardy
Description:	Rooter Identifying Strings

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	WHIRLPOOL_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for WhirlPool constants

Rule name:	win_xfilesstealer_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.xfilesstealer.

Rule name:	XMRIG_Monero_Miner Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Monero mining software
Reference:	https://github.com/xmrig/xmrig/releases