MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3e44e40cf250b4ab6cc63eeef6c55044a4cf3c6e71c742f0a05e838193898bc. 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: 18


Intelligence 18 IOCs YARA 12 File information Comments

SHA256 hash: a3e44e40cf250b4ab6cc63eeef6c55044a4cf3c6e71c742f0a05e838193898bc
SHA3-384 hash: 41bf973e73f77a82aa05472381637d6a07ac6130be608b728d793c1da9c5aff6fa5e9b147d013f0091291fa8e32c5718
SHA1 hash: 551e82adee59529e080328de1afffebd34599b80
MD5 hash: 9043e740e123435dc3be1690bd3bef52
humanhash: twelve-charlie-moon-ten
File name:vX8aeZ3r.exe
Download: download sample
Signature njrat
File size:27'136 bytes
First seen:2024-06-01 21:12:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:oLd6haZIVi/dMkt1cpDkjetHzCYe/RY2OzRLTm3yilqr63gbAt1vGf:Ww0IVi/dMc1uT5e/RsEJ1vGf
Threatray 258 similar samples on MalwareBazaar
TLSH T1F4C229593BA08176C2EF6BB406B2DB2102B2E2074A27DB5F4CD844FA5B777C14D81AE5
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter pmelson
Tags:exe NjRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
713
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
a3e44e40cf250b4ab6cc63eeef6c55044a4cf3c6e71c742f0a05e838193898bc.exe
Verdict:
Malicious activity
Analysis date:
2024-06-01 21:15:36 UTC
Tags:
njrat rat bladabindi

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Generic Dropper Njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Creating a window
Connection attempt
Sending a custom TCP request
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2024-06-01 21:13:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:njrat trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Legitimate hosting services abused for malware hosting/C2
njRAT/Bladabindi
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a3e44e40cf250b4ab6cc63eeef6c55044a4cf3c6e71c742f0a05e838193898bc
MD5 hash:
9043e740e123435dc3be1690bd3bef52
SHA1 hash:
551e82adee59529e080328de1afffebd34599b80
Detections:
MALWARE_Win_NjRAT INDICATOR_SUSPICIOUS_EXE_RawPaste_URL CN_disclosed_20180208_c Unknown_Malware_Sample_Jul17_2
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CN_disclosed_20180208_c
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Unknown_Malware_Sample_Jul17_2
Author:Florian Roth (Nextron Systems)
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Unknown_Malware_Sample_Jul17_2_RID326D
Author:Florian Roth
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Windows_Trojan_Njrat_30f3c220
Rule name:Windows_Trojan_Njrat_30f3c220
Author:Elastic Security

File information


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

Web download

njrat

Executable exe a3e44e40cf250b4ab6cc63eeef6c55044a4cf3c6e71c742f0a05e838193898bc

(this sample)

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

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