MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe. 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: 15


Intelligence 15 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe
SHA3-384 hash: ea89603c4561efcb290b842e988cf4b96302de36041219471a47561df461fc00d0614b5f24408a4d6670b758a36f4372
SHA1 hash: e4f45af546acc0b2d9d7bfb0deafa656bddb4b9e
MD5 hash: b4b19d78dc58f23e2ecb410af891a9a9
humanhash: skylark-harry-beryllium-fix
File name:b4b19d78dc58f23e2ecb410af891a9a9.exe
Download: download sample
Signature njrat
Create hunting rule
File size:496'037 bytes
First seen:2025-02-18 03:15:09 UTC
Last seen:2025-02-18 04:26:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b1c5b1beabd90d9fdabd1df0779ea832 (11 x CoinMiner, 10 x QuasarRAT, 8 x AsyncRAT)
ssdeep 12288:QLMEalqxXblqoRX5qbfphLxaO3qX+t4+K:cqaXNabfphLxa4w+K
TLSH T152B48D09E7E909F8E0B7F67899624902E7773C4A0371968F13AC165B1F63790DE3A721
TrID 76.9% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
3.0% (.EXE) Win64 Executable (generic) (10522/11/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
0.5% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
147.185.221.25:44311

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
147.185.221.25:44311 https://threatfox.abuse.ch/ioc/1414531/

Intelligence

File Origin
# of uploads :
2
# of downloads :
740
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
b4b19d78dc58f23e2ecb410af891a9a9.exe
Verdict:
Malicious activity
Analysis date:
2025-02-18 03:16:02 UTC
Tags:
rat njrat bladabindi remote backdoor
Link:
https://app.any.run/tasks/7bcb650c-0e83-4f10-a94e-949a70bf1078

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.2597.7182.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67b3fc2fa0fd713c335b85fb
Tags:
bladabindi dropper virus shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a process with a hidden window
Connection attempt to an infection source
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm bladabindi clipbanker fingerprint microsoft_visual_cc obfuscated overlay packed packer_detected
Link:
https://www.filescan.io/uploads/67b3fb43633d733362896913/reports/b06856aa-9d8a-42a6-84b2-9d6eeadb27a5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe
Result
Verdict:
UNKNOWN
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/a69d28f5-e880-42e7-82bf-7c81123c4ca1
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1617607
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
73%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2025-02-15 02:49:50 UTC
File Type:
PE+ (Exe)
Extracted files:
20
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zkis23dwcuqzfxiodtsdn7zsrlrjs45zckizzozzrxd67vas5t7a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250218-drywrawqdn/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Executes dropped EXE
Verdict:
Malicious
Tags:
bladabindi njrat
YARA:
n/a
Link:
https://app.threat.zone/submission/76fd62bf-738a-410e-a627-bf0825719d38
Unpacked files
SH256 hash:
ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe
MD5 hash:
b4b19d78dc58f23e2ecb410af891a9a9
SHA1 hash:
e4f45af546acc0b2d9d7bfb0deafa656bddb4b9e
Link:
https://www.unpac.me/results/74f83f91-7757-4057-b95e-0f10d8b43aef/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca912d6c7615/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/ca912d6c76152192dd0e1ce436ff328ae29973b912919cbb398dc7efd412ecfe

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

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 (FORCE_INTEGRITY)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

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