MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af
SHA3-384 hash: e0ff4cb5da6b0f08392d2df09c781e3e9f60369836abef56cbb6b0be7fccef3d596cb8a7f0049fc9854191fddf7a40df
SHA1 hash: 30e15b4bc40192f98af5b2cb088b8e2a79af89f2
MD5 hash: c268abdde91ae0e28f2272d2606a3d9b
humanhash: north-nine-hamper-hot
File name:ITB-4422-HG-MR-PKG2-REQMT-SPEC-Rev0.exe
Download: download sample
Signature njrat
Create hunting rule
File size:371'090 bytes
First seen:2024-05-16 17:16:39 UTC
Last seen:2024-05-16 18:32:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e2a592076b17ef8bfb48b7e03965a3fc (385 x GuLoader, 58 x RemcosRAT, 40 x AgentTesla)
ssdeep 6144:FspNjlsoBNb6ClODxve4lHxQ10MI6YI1uv7jQqwmLrvQizxGOLbN70MI:FcACYDDQ10M7cTUftMxJtI
TLSH T1EA84D068FBD08AEDDA730571D836546E565FDC28D6024503233FF6EAB63CC298A0BD94
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
File icon (PE):PE icon
dhash icon 4c82e0cc6c78320e (1 x njrat)
Reporter Anonymous
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
414
Origin country :
US US
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
https://files.fm/u/c5c43m25gn
Verdict:
Malicious activity
Analysis date:
2024-05-15 22:45:16 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/84d5ad36-3b1b-4bdd-9e36-da25d6311b71

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.2058.27123.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Сreating synchronization primitives
Creating a file in the %temp% subdirectories
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/66463fa4d7fb0506c93a285a/reports/5e4371e4-916b-45b9-b9b6-324851e90f0e/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af
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:
Unknown
Link:
https://analyze.intezer.com/analyses/d94a37a0-24f4-43fa-bd42-2ce647dd7316
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1442888
Signature
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 Mail credentials (via file / registry access)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-05-16 02:27:28 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
11 of 24 (45.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yuwg23vc3zeebbekmpoknfdkojbnpiwf7emk7za7e4ogv3htucxq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240516-vtn8rsfb2x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
Link:
https://www.unpac.me/results/b18782de-6d75-4b7f-a437-560114299a50/
SH256 hash:
c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af
MD5 hash:
c268abdde91ae0e28f2272d2606a3d9b
SHA1 hash:
30e15b4bc40192f98af5b2cb088b8e2a79af89f2
Link:
https://www.unpac.me/results/b18782de-6d75-4b7f-a437-560114299a50/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c52c6d6ea2de/report/overview.html
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/c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af

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:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers

File information

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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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