MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61. 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

RustyStealer

Vendor detections: 9

Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash:	62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61
SHA3-384 hash:	2164218dcde43a3294a0f9bdef78aa64c790000be95874cc01193242928d67f4cc9c7baeea7408f55f31943acbd3901a
SHA1 hash:	db18519ddb134f39ae311bcc148f2677f62b34a4
MD5 hash:	9f632d69a52c4076934ce5f569a675bd
humanhash:	louisiana-cold-blossom-uniform
File name:	SecuriteInfo.com.Win64.TrojanX-gen.14614.17747
Download:	download sample
Signature	RustyStealer Create hunting rule
File size:	2'821'120 bytes
First seen:	2024-04-03 01:24:38 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	3e15aa248ffd863c4d280e6e314baf7c (4 x RustyStealer, 1 x XWorm)
ssdeep	49152:UJrXDFN+9iEXvLqbWOqUCAu4Om/+zspq7uCsJRH:UdgQvNCsJRH
TLSH	T19BD52911BB4E9DADC15AC470C2478B626A7170CA0B35BAFF45D486383E69AF51F3C398
TrID	44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter	SecuriteInfoCom
Tags:	exe RustyStealer

Intelligence

File Origin

# of uploads :

# of downloads :

339

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61.exe

Verdict:

Malicious activity

Analysis date:

2024-04-03 01:25:14 UTC

Tags:

remote xworm

Link:

https://app.any.run/tasks/89768472-b44d-495d-b172-4d741da02db0

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Connection attempt

Sending a custom TCP request

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Launching a process

Moving a file to the Program Files subdirectory

Replacing files

Sending an HTTP GET request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug

Link:

https://www.filescan.io/uploads/660caff0391c61c47913efb1/reports/b5465012-42e2-487e-a9ce-d9047b892c24/overview

Verdict:

Suspicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61

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/0abfe545-f2b0-4136-ada8-46414c2e01cf

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1419113

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found malware configuration

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Snort IDS alert for network traffic

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

Verdict:

Benign

File Type:

Link:

https://malprob.io/report/62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61/

Threat name:

Win64.Trojan.Smokeloader

Status:

Malicious

First seen:

2024-04-02 22:53:15 UTC

File Type:

PE+ (Exe)

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ml234fw46kfon532ou4ypbbpyr5wze43jtaw52463a7j53jsx5qq._file

Verdict:

unknown

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/240403-bsyk9sbh22/

Unpacked files

SH256 hash:

62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61

MD5 hash:

9f632d69a52c4076934ce5f569a675bd

SHA1 hash:

db18519ddb134f39ae311bcc148f2677f62b34a4

Link:

https://www.unpac.me/results/ad37d2bb-3c5c-475b-af96-32f5df237303/

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

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

Rule name:	reverse_http Create hunting rule
Author:	CD_R0M_
Description:	Identify strings with http reversed (ptth)

Rule name:	Rustyloader_mem_loose Create hunting rule
Author:	James_inthe_box
Description:	Corroded buerloader
Reference:	https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24

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

File information

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

Web download

RustyStealer

exe 62f5be16dcf28ae6f77a753987842fc47b6c939b4cc16eeb9ed83e9eed32bf61

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2799440/

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_DLL_CHARACTERISTICS	Missing dll Security Characteristics (FORCE_INTEGRITY)	high

Reviews

ID	Capabilities	Evidence
SS_API	Uses SS API	secur32.dll::AcceptSecurityContext secur32.dll::AcquireCredentialsHandleA secur32.dll::ApplyControlToken secur32.dll::DecryptMessage secur32.dll::DeleteSecurityContext secur32.dll::QueryContextAttributesW
WIN32_PROCESS_API	Can Create Process and Threads	kernel32.dll::WriteProcessMemory kernel32.dll::CloseHandle kernel32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryA kernel32.dll::GetSystemInfo
WIN_BASE_EXEC_API	Can Execute other programs	kernel32.dll::WriteConsoleW kernel32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	ntdll.dll::NtCreateFile ntdll.dll::NtDeviceIoControlFile kernel32.dll::FindFirstFileW
WIN_BCRYPT_API	Can Encrypt Files	bcrypt.dll::BCryptGenRandom
WIN_CRYPT_API	Uses Windows Crypt API	crypt32.dll::CertAddCertificateContextToStore crypt32.dll::CertDuplicateCertificateChain crypt32.dll::CertDuplicateCertificateContext crypt32.dll::CertDuplicateStore crypt32.dll::CertEnumCertificatesInStore crypt32.dll::CertFreeCertificateChain
WIN_REG_API	Can Manipulate Windows Registry	advapi32.dll::RegOpenKeyExW advapi32.dll::RegQueryValueExW
WIN_SOCK_API	Uses Network to send and receive data	ws2_32.dll::bind ws2_32.dll::closesocket ws2_32.dll::connect ws2_32.dll::freeaddrinfo ws2_32.dll::getaddrinfo ws2_32.dll::getpeername

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