MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781. 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

Stealc

Vendor detections: 17

Intelligence 17 IOCs YARA 12 File information Comments

SHA256 hash:	4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781
SHA3-384 hash:	4d780802a69bc22b33269515fc69d83c14b051edd8ff3c37a365d0f4eec769890ff2d46443be509d35abd68cd5950f8d
SHA1 hash:	3d0f99791c09c488032e39afc6d43b9765b34dd0
MD5 hash:	0556103eb32caf02871e270abfa8fd9f
humanhash:	bluebird-lithium-quebec-papa
File name:	0556103eb32caf02871e270abfa8fd9f.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	2'713'600 bytes
First seen:	2024-05-28 17:34:55 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e8127062b67061bfab110b596325ca10 (1 x Stealc)
ssdeep	49152:XQzIzMiqCNwRJtTF+TxMoxc1TU+j+dAzGwlrh:XY598AtIuoITsdZ
Threatray	40 similar samples on MalwareBazaar
TLSH	T186C59E26B193C53BD472163C4D7BA29888557E233E28DC5A7AF80B4D0A356417F3D2BB
TrID	63.1% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58) 24.9% (.EXE) Win32 Executable Borland Delphi 6 (262638/61) 5.4% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 3.9% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 1.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
File icon (PE):
dhash icon	3c64ccfcecf8e8ec (17 x Stealc, 3 x Vidar, 1 x ArkeiStealer)
Reporter	abuse_ch
Tags:	exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

343

Origin country :

Vendor Threat Intelligence

Malware family:

vidar

ID:

File name:

4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781.exe

Verdict:

Malicious activity

Analysis date:

2024-05-28 17:35:21 UTC

Tags:

vidar

Link:

https://app.any.run/tasks/26e21b16-5605-4f47-ba67-90c91e2d2ab9

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.25433.727.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=665615d45721c8e52717841cwin7simulatehigh_evasion

Tags:

Banker Static Infostealer Dexter

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a window

Searching for synchronization primitives

Creating a file in the %temp% directory

Creating a process from a recently created file

Behavior that indicates a threat

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Using the Windows Management Instrumentation requests

Running batch commands

Creating a process with a hidden window

Launching a process

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

fingerprint hacktool infostealer keylogger

Link:

https://www.filescan.io/uploads/665615ca458fabe8a95c91b9/reports/3018cbfd-847c-4360-abea-cb823d186f74/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

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.

Malware family:

Vidar

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/88883dc5-5733-45d2-a307-c344e02ade85

Result

Threat name:

CryptOne, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1448856

Signature

AI detected suspicious sample

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to inject code into remote processes

Found malware configuration

Found many strings related to Crypto-Wallets (likely being stolen)

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Opens network shares

Sample uses process hollowing technique

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal Bitcoin Wallet information

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Crypto Currency Wallets

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected CryptOne packer

Yara detected Powershell download and execute

Yara detected Vidar

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781/

Threat name:

Win32.Spyware.Stealc

Status:

Malicious

First seen:

2024-05-28 17:35:11 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

17 of 24 (70.83%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jw5tpf5jk2jsh5tjfaa2dhip7zkz5zdungmg44p367k3v7acw6aq._file

Verdict:

malicious

Stealc

4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

Stealc

6696728008399e456f469a267ee65dc5e5ba68a2b84a1772a458f2ee7e8bdec2

Stealc

6efd90bc5941feb14ded5c431bf7c1cf179f28c449a848cb7c1434cc4fae1ede

Stealc

8341fb2716f2fc1fd17f640022928c378f66732f2f1afbc9a1ca8aa2af1a28fb

Stealc

+ 30 additional samples on MalwareBazaar

Result

Malware family:

vidar

Score:

10/10

Tags:

family:stealc family:vidar discovery spyware stealer

Link:

https://tria.ge/reports/240528-v51e6sef57/

Behaviour

Checks processor information in registry

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Checks installed software on the system

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Downloads MZ/PE file

Detect Vidar Stealer

Stealc

Vidar

Malware Config

C2 Extraction:

https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f0fccea8-2aa9-42ed-b467-08ce662b5e32

Unpacked files

SH256 hash:

bda228ef3b7a74abb8164bb69c6d9d78189e77b87dc65f7650ea115dacf39c4f

MD5 hash:

232a1c0c39a486bf80c00ff33f5bb178

SHA1 hash:

78186855340981661ac5aeda8c112a1bbc1b0b16

Detections:

VidarStealer

win_stealc_a0

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Link:

https://www.unpac.me/results/ffdaf76b-a9b0-4c01-94b2-80ce9037456b/

SH256 hash:

4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

MD5 hash:

0556103eb32caf02871e270abfa8fd9f

SHA1 hash:

3d0f99791c09c488032e39afc6d43b9765b34dd0

Link:

https://www.unpac.me/results/ffdaf76b-a9b0-4c01-94b2-80ce9037456b/

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

Threat name:

Stealc

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

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

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

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

Rule name:	Check_Dlls Create hunting rule

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

Rule name:	EXE_Vidar_May_2024 Create hunting rule
Author:	NDA0E
Description:	Detects Vidar payload

Rule name:	has_telegram_urls Create hunting rule
Author:	Aaron DeVera<aaron@backchannel.re>
Description:	Detects Telegram URLs

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing potential Windows Defender anti-emulation checks

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	Windows_Generic_Threat_c374cd85 Create hunting rule
Author:	Elastic Security

File information

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

Web download

Stealc

exe 4dbb3797a9569323f6692801a19d0ffe559ee47469986e71fbf7d5bafc02b781

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2854733/

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_AUTHENTICODE	Missing Authenticode	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
COM_BASE_API	Can Download & Execute components	ole32.dll::CoCreateInstance
WIN32_PROCESS_API	Can Create Process and Threads	kernel32.dll::CloseHandle kernel32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryExA kernel32.dll::LoadLibraryA kernel32.dll::GetSystemInfo kernel32.dll::GetStartupInfoA kernel32.dll::GetDiskFreeSpaceA kernel32.dll::GetCommandLineA
WIN_BASE_IO_API	Can Create Files	kernel32.dll::CreateFileA kernel32.dll::DeleteFileA kernel32.dll::FindFirstFileA kernel32.dll::GetTempPathA version.dll::GetFileVersionInfoSizeA version.dll::GetFileVersionInfoA
WIN_REG_API	Can Manipulate Windows Registry	advapi32.dll::RegCreateKeyExA advapi32.dll::RegDeleteKeyA advapi32.dll::RegOpenKeyExA advapi32.dll::RegQueryInfoKeyA advapi32.dll::RegQueryValueExA advapi32.dll::RegSetValueExA
WIN_USER_API	Performs GUI Actions	user32.dll::ActivateKeyboardLayout user32.dll::CreateMenu user32.dll::FindWindowA user32.dll::PeekMessageA user32.dll::CreateWindowExA

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