MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e. 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

MarsStealer

Vendor detections: 15

Intelligence 15 IOCs YARA 31 File information Comments 1

SHA256 hash:	6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e
SHA3-384 hash:	2f415436a91aa87c164c5eb30377ee5957a81520baf0aa9b5955eefc5f6a242a8853c46699a9555b4314b1a7507ed82c
SHA1 hash:	180fa6996f0746cc76b2e74850413c4d4eaee214
MD5 hash:	4b995f50f5078242f3d4f514438069e9
humanhash:	monkey-jupiter-romeo-uniform
File name:	4b995f50f5078242f3d4f514438069e9
Download:	download sample
Signature	MarsStealer Create hunting rule
File size:	24'557'568 bytes
First seen:	2024-10-19 14:28:37 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1aae8bf580c846f39c71c05898e57e88 (131 x LummaStealer, 12 x ValleyRAT, 10 x SalatStealer)
ssdeep	196608:w4nWDsmjQByzWNxY2GRZZbMCj/RotKN7N:trHIzuGpMC7R97N
Threatray	1 similar samples on MalwareBazaar
TLSH	T116370720EA8751B1EB13183654EF712F13356D018B388ACFF78D7A18FB77A960976609
TrID	37.3% (.EXE) Win64 Executable (generic) (10522/11/4) 17.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 15.9% (.EXE) Win32 Executable (generic) (4504/4/1) 7.3% (.ICL) Windows Icons Library (generic) (2059/9) 7.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
File icon (PE):
dhash icon	f3edcdeaaae8ecec (1 x MarsStealer)
Reporter	zbetcheckin
Tags:	32 exe MarsStealer

Intelligence

File Origin

# of uploads :

# of downloads :

396

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

4b995f50f5078242f3d4f514438069e9.exe

Verdict:

Malicious activity

Analysis date:

2024-10-19 14:32:05 UTC

Tags:

antivm stealc stealer

Link:

https://app.any.run/tasks/eb9770a3-1ff1-4e8f-a3d7-ac3ae778e463

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Win32.Evo-gen.12995.30414.UNOFFICIAL

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6713c23834f884d15c8d26dd

Tags:

Infosteal Exploit Hype Onli

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% subdirectories

Launching a process

Сreating synchronization primitives

Connection attempt

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm chacha golang infostealer obfuscated redcap rijndael

Link:

https://www.filescan.io/uploads/6713c232d875ce8b57d5dd59/reports/d8c6dece-8c03-456f-a731-5d1c67af3d26/overview

Verdict:

Malicious

Labled as:

QD:Trojan.GenericQ

Link:

https://www.hybrid-analysis.com/sample/6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e

Result

Verdict:

SUSPICIOUS

Result

Threat name:

Stealc

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1537789

Signature

AI detected suspicious sample

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

Found malware configuration

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Writes to foreign memory regions

Yara detected Powershell download and execute

Yara detected Stealc

Behaviour

Behavior Graph:

Download SVG

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e

Gathering data

Threat name:

Win32.Trojan.Stealerc

Status:

Malicious

First seen:

2024-10-11 18:32:54 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

21 of 38 (55.26%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=npfccavbusq3pkxyvw6r76cjqjnrgi5i3pmzj2k3x3f7rsoolbxa._file

Verdict:

malicious

Label(s):

stealc

MarsStealer

error

MarsStealer

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:s4 discovery stealer

Link:

https://tria.ge/reports/241019-rtkc2a1bnf/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Stealc

Malware Config

C2 Extraction:

http://45.143.167.51

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/ce553413-57b9-4a3e-af21-d9302f58a59f

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/6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e

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:	aix Create hunting rule
Author:	Tim Brown @timb_machine
Description:	AIX binary

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

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	DebuggerCheck__QueryInfo 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:	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:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

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

Rule name:	identity_golang Create hunting rule
Author:	Eric Yocam
Description:	find Golang malware

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

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

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:	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:	test_Malaysia Create hunting rule
Author:	rectifyq
Description:	Detects file containing malaysia string

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

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

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.

Web download

MarsStealer

exe 6bca2102a1a4a1b7aaf8adbd1ff849825b1323a8dbd994e95bbecbf8c9ce586e

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3242968/

URLhaus

https://urlhaus.abuse.ch/url/3244781/

URLhaus

https://urlhaus.abuse.ch/url/3244782/

URLhaus

https://urlhaus.abuse.ch/url/3244784/

URLhaus

https://urlhaus.abuse.ch/url/3244787/

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_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	kernel32.dll::CloseHandle kernel32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryW kernel32.dll::LoadLibraryExW kernel32.dll::GetSystemInfo
WIN_BASE_EXEC_API	Can Execute other programs	kernel32.dll::WriteConsoleW kernel32.dll::SetConsoleCtrlHandler kernel32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	kernel32.dll::GetSystemDirectoryA

Comments

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zbet commented on 2024-10-19 14:28:38 UTC

url : hxxp://web.johnmccrea.com/js/670937d1a5503_CSEasyUnlocker.exe