MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54. 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

njrat

Vendor detections: 12

Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash:	22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54
SHA3-384 hash:	8ad8b80d435adeadc912b7d5f03522de48a4a474f8db70ab5ee072001f7771b245689b612e81cf51cd527d12454ededb
SHA1 hash:	3777b881bbc8600ef7c75f261aa94f81da7b4329
MD5 hash:	9a27c336030fddb50d91fb340de1553d
humanhash:	twenty-nuts-aspen-double
File name:	22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54
Download:	download sample
Signature	njrat Create hunting rule
File size:	1'160'192 bytes
First seen:	2025-03-10 11:37:08 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	d4b94e8ee3f620a89d114b9da4b31873 (92 x GuLoader, 18 x njrat, 9 x RemcosRAT)
ssdeep	24576:64uMl4MktAMRoFsjq5c3SddFDykNTwdQG9ikz:4MQ6Iml5kSdzDPwZi8
TLSH	T14F3523A1B632C464D8E1843EC052E1F61A611E63D4E4EE23B742BF3EB477017991AF96
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
dhash icon	593463627171414d (18 x njrat)
Reporter	adrian__luca
Tags:	exe NjRAT signed

Code Signing Certificate

Organisation:	Subfastigiated
Issuer:	Subfastigiated
Algorithm:	sha256WithRSAEncryption
Valid from:	2024-08-30T01:27:08Z
Valid to:	2025-08-30T01:27:08Z
Serial number:	49e6a8fc08feaf74eed38e87a3122b4818191634
Thumbprint Algorithm:	SHA256
Thumbprint:	df19ae62ce43c77324962fe32ffb44055837dcf584d5f6d409bc4c6c03ab1a30
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

213

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54

Verdict:

Malicious activity

Analysis date:

2025-03-10 14:24:40 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/e6f187b1-b5d1-4389-bdf0-f7e543418f45

Note:

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

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67ced72f1f777fe30608979e

Tags:

injection injector virus

Result

Verdict:

Clean

Maliciousness:

Behaviour

Searching for the window

Creating a file in the %AppData% subdirectories

Creating a file in the %temp% directory

Creating a file

Delayed reading of the file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

adaptive-context blackhole guloader installer microsoft_visual_cc overlay signed

Link:

https://www.filescan.io/uploads/67cecef33c5f644bd94b1c31/reports/220cf152-41ab-4c77-9d53-f9b549d7d4a5/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/aca6da8b-17bb-4f39-9b9c-3e5e55d4fa5c

Result

Threat name:

GuLoader

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1634784

Signature

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

.NET source code contains potential unpacker

AI detected suspicious PE digital signature

Antivirus / Scanner detection for submitted sample

Joe Sandbox ML detected suspicious sample

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

Tries to detect virtualization through RDTSC time measurements

Uses dynamic DNS services

Yara detected Costura Assembly Loader

Yara detected GuLoader

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54/

Threat name:

Win32.Trojan.GuLoader

Status:

Malicious

First seen:

2025-02-24 02:07:59 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

28 of 38 (73.68%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=elhnq4n4kwfml44p3c4wswppmjqiofk4hdzri7pvfanvf7ggz5ka._file

Result

Malware family:

guloader

Score:

10/10

Tags:

family:guloader discovery downloader

Link:

https://tria.ge/reports/250310-nq9xqssrz2/

Behaviour

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Legitimate hosting services abused for malware hosting/C2

Loads dropped DLL

Guloader family

Guloader,Cloudeye

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/d19943c4-3eb1-4659-93e3-5eeacd482024

Unpacked files

SH256 hash:

22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54

MD5 hash:

9a27c336030fddb50d91fb340de1553d

SHA1 hash:

3777b881bbc8600ef7c75f261aa94f81da7b4329

Link:

https://www.unpac.me/results/321273c1-e0a9-47ec-9d28-bc4a3a6ad1b6/

SH256 hash:

e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

MD5 hash:

ee260c45e97b62a5e42f17460d406068

SHA1 hash:

df35f6300a03c4d3d3bd69752574426296b78695

Link:

https://www.unpac.me/results/321273c1-e0a9-47ec-9d28-bc4a3a6ad1b6/

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

Threat name:

NJRat

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/22ced871bc558ac5f38fd8b96959ef626087155c38f3147df5281b52fcc6cf54

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:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

No further information available

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_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
COM_BASE_API	Can Download & Execute components	ole32.dll::CoCreateInstance
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::SetFileSecurityW
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW ADVAPI32.dll::OpenProcessToken KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDiskFreeSpaceW KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::MoveFileW KERNEL32.dll::MoveFileExW
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuW USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::OpenClipboard USER32.dll::PeekMessageW USER32.dll::CreateWindowExW

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