MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 155854758b79cdee58f7df5c1a4a07d3b19b3d64a0a58b2e8faf6d8b67042f3c. 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: 17
| SHA256 hash: | 155854758b79cdee58f7df5c1a4a07d3b19b3d64a0a58b2e8faf6d8b67042f3c |
|---|---|
| SHA3-384 hash: | 75a5c1e042b177daaf2420a86459130408411b2575efc8ab99f07980e224b8446c23140c4104f61038546c2cf89dc460 |
| SHA1 hash: | 071c5791d9ca1c2382450c6ef09432e12e8b3ca2 |
| MD5 hash: | 76969acc42256771162be6f285de947c |
| humanhash: | rugby-oscar-stairway-queen |
| File name: | file |
| Download: | download sample |
| Signature | njrat |
| File size: | 286'720 bytes |
| First seen: | 2025-01-02 19:08:14 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'754 x AgentTesla, 19'663 x Formbook, 12'252 x SnakeKeylogger) |
| ssdeep | 6144:U5nFOwQLKFIkwMs+OZBH/5kA5wJEGrNTxhd:UJFOZKFIk2ZBf5kA+JE6h |
| Threatray | 56 similar samples on MalwareBazaar |
| TLSH | T17154E07EF245AE91C65D8A7384D7E83613B5DCAE8593E34E30E8353105B33EA0046E9B |
| TrID | 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| File icon (PE): |  |
| dhash icon | 9288ce8c2a868f92 (89 x Tinba, 7 x AsyncRAT, 6 x Dridex) |
| Reporter |  jstrosch |
| Tags: | .NET exe MSIL NjRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
398
Origin country :
CAVendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2025-01-02 19:12:30 UTC
Tags:
java rat asyncrat remote stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
94.9%
Tags:
emotet keylog packed word
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
DNS request
Creating a window
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected smartassembly smart_assembly
Verdict:
Malicious
Labled as:
Lazy.Generic
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:
Malicious
Result
Threat name:
DcRat, JasonRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Potentially Suspicious Malware Callback Communication
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected DcRat
Yara detected JasonRAT
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Exploit.Generic
Status:
Malicious
First seen:
2025-01-02 19:09:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
15 of 38 (39.47%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 46 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat discovery persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
AsyncRat
Asyncrat family
Verdict:
Malicious
Tags:
Win.Packed.Lazy-10036699-0
YARA:
n/a
Unpacked files
SH256 hash:
155854758b79cdee58f7df5c1a4a07d3b19b3d64a0a58b2e8faf6d8b67042f3c
MD5 hash:
76969acc42256771162be6f285de947c
SHA1 hash:
071c5791d9ca1c2382450c6ef09432e12e8b3ca2
Malware family:
DCRat
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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: | INDICATOR_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| Rule name: | pe_imphash |
|---|
| Rule name: | RansomPyShield_Antiransomware |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP) |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
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_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
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