MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7. 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

BitRAT

Vendor detections: 16

Intelligence 16 IOCs YARA 17 File information Comments

SHA256 hash:	f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7
SHA3-384 hash:	c6112cbfdd9c6159f9e924169a416457df23209fa51d8985c08d7d0c22cea9beab02bd787de24eb8a4838c38d2ad62e6
SHA1 hash:	b02b8b4c0ee1f8b850e420d754ef1f398c1ebf4d
MD5 hash:	4443b57c1262fbc156765ba2a9019391
humanhash:	kentucky-lake-cat-april
File name:	stub.exe
Download:	download sample
Signature	BitRAT Create hunting rule
File size:	3'943'424 bytes
First seen:	2024-03-26 17:48:04 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	71955ccbbcbb24efa9f89785e7cce225 (57 x BitRAT)
ssdeep	98304:d77Pmq33rE/JDLPWZADUGer7B6iY74M/emlwXVZ4FB:5+R/eZADUXR
TLSH	T10606CF02FA46C562D2170230E96E77BA053CF9354B2085C3B3946E6C59B66D17A3BF3B
TrID	40.3% (.EXE) Win64 Executable (generic) (10523/12/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter	e24111111111111
Tags:	BitRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

309

Origin country :

Vendor Threat Intelligence

Malware family:

bitrat

ID:

File name:

BitRAT.exe

Verdict:

Malicious activity

Analysis date:

2024-02-16 16:01:37 UTC

Tags:

bitrat

Link:

https://app.any.run/tasks/7d4ba328-1c34-4b53-bf60-7e4a8b67c2b5

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Setting a global event handler

Connection attempt

Modifying an executable file

Launching a process

Moving a file to the Program Files subdirectory

Replacing files

Sending an HTTP GET request

Forced system process termination

Moving of the original file

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Setting a global event handler for the keyboard

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug anti-vm fingerprint lolbin mikey remote shell32

Link:

https://www.filescan.io/uploads/66030a96f1c80c2d4d5891c1/reports/8a236cb6-602b-4fe8-a1ec-845d5780f9b6/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7

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:

BitRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9024d5e2-2545-415d-8c1b-810182ddcf99

Result

Threat name:

BitRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1416029

Signature

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Contains functionality to hide a thread from the debugger

Contains functionality to inject code into remote processes

Creates files in alternative data streams (ADS)

Found malware configuration

Hides threads from debuggers

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Opens the same file many times (likely Sandbox evasion)

Yara detected BitRAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7/

Threat name:

Win32.Backdoor.ParalaxRat

Status:

Malicious

First seen:

2024-02-16 19:05:10 UTC

File Type:

PE (Exe)

AV detection:

32 of 37 (86.49%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6zrrzmfzbwwvaq3oktqwe3lgqs5udcfekhorc2hhfx24uz2yhl3q._file

Verdict:

malicious

Result

Malware family:

bitrat

Score:

10/10

Tags:

family:bitrat persistence trojan

Link:

https://tria.ge/reports/240326-wdgz7aga55/

Behaviour

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of NtSetInformationThreadHideFromDebugger

Adds Run key to start application

BitRAT

Malware Config

C2 Extraction:

103.153.182.247:6161

Unpacked files

SH256 hash:

f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7

MD5 hash:

4443b57c1262fbc156765ba2a9019391

SHA1 hash:

b02b8b4c0ee1f8b850e420d754ef1f398c1ebf4d

Detections:

BitRat

win_bit_rat_auto

MALWARE_Win_BitRAT

Link:

https://www.unpac.me/results/047d0ea5-9556-4d60-bf54-dec6d0d72276/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f6631cb0b90d/report/overview.html

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/f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7

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:	bitrat_unpacked Create hunting rule
Author:	jeFF0Falltrades
Description:	Experimental rule to detect unpacked BitRat payloads on disk or in memory, looking for a combination of strings and decryption/decoding patterns
Reference:	https://krabsonsecurity.com/2020/08/22/bitrat-the-latest-in-copy-pasted-malware-by-incompetent-developers/

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

Rule name:	DebuggerCheck__MemoryWorkingSet Create hunting rule
Author:	Fernando Mercês
Description:	Anti-debug process memory working set size check
Reference:	http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/

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

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MALWARE_Win_BitRAT Create hunting rule
Author:	ditekSHen
Description:	Detects BitRAT RAT

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

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

Rule name:	Windows_Trojan_Bitrat_54916275 Create hunting rule
Author:	Elastic Security

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

File information

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

Web download

BitRAT

exe f6631cb0b90dad50436e54e1626d6684bb4188a451dd1168e72df5ca67583af7

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2793183/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2793598/

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

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.DLL::CreateRemoteThread KERNEL32.DLL::CreateProcessW KERNEL32.DLL::CreateProcessA KERNEL32.DLL::OpenProcess KERNEL32.DLL::VirtualAllocEx KERNEL32.DLL::WriteProcessMemory
WIN_BASE_API	Uses Win Base API	KERNEL32.DLL::CreateFiber KERNEL32.DLL::TerminateProcess KERNEL32.DLL::LoadLibraryA KERNEL32.DLL::LoadLibraryW KERNEL32.DLL::LoadLibraryExW KERNEL32.DLL::LoadLibraryExA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.DLL::WinExec KERNEL32.DLL::WriteConsoleW KERNEL32.DLL::ReadConsoleA KERNEL32.DLL::ReadConsoleW KERNEL32.DLL::SetConsoleCtrlHandler KERNEL32.DLL::SetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.DLL::CopyFileA KERNEL32.DLL::CreateDirectoryW KERNEL32.DLL::CreateDirectoryExW KERNEL32.DLL::CreateFileW KERNEL32.DLL::CreateFileA KERNEL32.DLL::DeleteFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.DLL::GetComputerNameW KERNEL32.DLL::QueryDosDeviceW

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample