MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d. 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:	7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d
SHA3-384 hash:	af1b772d32c237c0a279efc7b873cb2855fac5f6bd24b6e3644aedd7662d699b9ce803942ff15180aed12260f0283ee8
SHA1 hash:	0aec013b46abde733174c5a5abca01640b33b7cb
MD5 hash:	6d1b8cf3d8c8411f6710eab0c6346867
humanhash:	april-nitrogen-mobile-eight
File name:	Quote-SA05537809567875351061-24_pdf.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	1'132'480 bytes
First seen:	2025-02-24 22:18:31 UTC
Last seen:	2025-03-03 09:51:13 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	d4b94e8ee3f620a89d114b9da4b31873 (92 x GuLoader, 18 x njrat, 9 x RemcosRAT)
ssdeep	24576:EQYne7k84uW9gRaFsjq5c3SddFDykNTwdQG9ik:qneo8QgRkl5kSdzDPwZi
TLSH	T1733523D0B671C075C8C1DA78D826EAFA1AB23E60D190AA13B3847F6D747F042953EF95
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	threatcat_ch
Tags:	exe NjRAT signed

Code Signing Certificate

Organisation:	Unflourishing
Issuer:	Unflourishing
Algorithm:	sha256WithRSAEncryption
Valid from:	2024-03-25T11:28:58Z
Valid to:	2025-03-25T11:28:58Z
Serial number:	7cdedea2fb638afb734988936478133d7ff21cfc
Thumbprint Algorithm:	SHA256
Thumbprint:	5b3eb0da7a28f9ec4a48c0e10200dc48d9e6587a4903d9373c9f48628b4cd47b
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

122

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Gen.Variant.Nemesis.40410.12412.18159.UNOFFICIAL

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67bcf06228ab76d43a5ced7d

Tags:

underscore nsis

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a file in the %AppData% subdirectories

Creating a file in the %temp% directory

Searching for the window

Creating a file

Delayed reading of the file

Unauthorized injection to a recently created process

Restart of the analyzed sample

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

adaptive-context blackhole installer masquerade microsoft_visual_cc obfuscated overlay signed

Link:

https://www.filescan.io/uploads/67bcf0603afc3763bec4bdca/reports/a9294757-fca5-4595-a10a-cbfcde94a87b/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/f8a0cb7b-328c-405b-8ba9-b6f1a951ca41

Result

Threat name:

Discord Token Stealer, GuLoader

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1623169

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

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

Initial sample is a PE file and has a suspicious name

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

Tries to detect virtualization through RDTSC time measurements

Tries to harvest and steal Bitcoin Wallet information

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

Tries to steal Mail credentials (via file / registry access)

Uses dynamic DNS services

Yara detected AntiVM3

Yara detected Costura Assembly Loader

Yara detected Discord Token Stealer

Yara detected Generic Stealer

Yara detected GuLoader

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d/

Threat name:

Win32.Trojan.GuLoader

Status:

Malicious

First seen:

2025-02-24 04:40:15 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 38 (57.89%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=pumamhtihi7bmuceu7k36usqi2e3x4sawsmcgahl4ltbhg3ilfwq._file

Result

Malware family:

guloader

Score:

10/10

Tags:

family:guloader collection discovery downloader spyware stealer

Link:

https://tria.ge/reports/250224-18hbna1jy2/

Behaviour

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Browser Information Discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Accesses Microsoft Outlook profiles

Legitimate hosting services abused for malware hosting/C2

Loads dropped DLL

Reads WinSCP keys stored on the system

Reads user/profile data of web browsers

Guloader family

Guloader,Cloudeye

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/984c0eec-2bb0-41a0-84f5-8b73f14526a9

Unpacked files

SH256 hash:

7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d

MD5 hash:

6d1b8cf3d8c8411f6710eab0c6346867

SHA1 hash:

0aec013b46abde733174c5a5abca01640b33b7cb

Link:

https://www.unpac.me/results/71192e50-59cb-45ad-ae99-25cc405a7f4e/

SH256 hash:

e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

MD5 hash:

ee260c45e97b62a5e42f17460d406068

SHA1 hash:

df35f6300a03c4d3d3bd69752574426296b78695

Link:

https://www.unpac.me/results/71192e50-59cb-45ad-ae99-25cc405a7f4e/

Malware family:

GuLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/7d18061e683a/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/7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d

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.

Malspam

njrat

exe 7d18061e683a3e165044a7d5bf52504689bbf240b4982300ebe2e6139b68596d

(this sample)

Delivery method

Distributed via e-mail attachment

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

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