MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3b3881061a223d64937333071ff1f6c1f27c33ac0290381913df100bff85c7b6. 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
| SHA256 hash: | 3b3881061a223d64937333071ff1f6c1f27c33ac0290381913df100bff85c7b6 |
|---|---|
| SHA3-384 hash: | 235149ab48ea0066698e3da2cec6246acd99bf5b71156e8f95eaf525b5bf6bb16fbd87d4b201703dc68cb7cc6589940e |
| SHA1 hash: | e323a815afd6fe2ad438a9a37c3c004689e3b96f |
| MD5 hash: | a097293efe56b5ad6dbbe5bdbc9105cc |
| humanhash: | uncle-august-ohio-tennis |
| File name: | a097293efe56b5ad6dbbe5bdbc9105cc.exe |
| Download: | download sample |
| Signature | njrat |
| File size: | 168'960 bytes |
| First seen: | 2022-04-19 15:10:40 UTC |
| Last seen: | 2022-04-20 09:48:36 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 3072:GLbK/jHmDRv/yuB2plf/ob0dDEpeB3HfubFHrDf4C:GLVyuLQyy2bFXwC |
| Threatray | 770 similar samples on MalwareBazaar |
| TLSH | T120F3285A778A8B10D8BC1D7190EB593003F0DEC76532E68A3FC4769E8A122D75D48BDA |
| TrID | 48.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 20.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 8.6% (.SCR) Windows screen saver (13101/52/3) 6.9% (.EXE) Win64 Executable (generic) (10523/12/4) 4.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) |
| Reporter |  abuse_ch |
| Tags: | exe NjRAT RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 184.82.74.94:9160 | https://threatfox.abuse.ch/ioc/521650/ |
Intelligence
File Origin
# of uploads :
8
# of downloads :
437
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Sending an HTTP GET request
Moving a file to the %temp% directory
Enabling the 'hidden' option for recently created files
Creating a window
Deleting a recently created file
Searching for the window
Сreating synchronization primitives
Launching a tool to kill processes
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm autorun barys bladabindi cmd.exe control.exe eventvwr.exe explorer.exe greyware keylogger njrat obfuscated packed rat replace.exe schtasks.exe update.exe wscript.exe
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:
Njrat
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2022-04-17 13:39:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
34 of 41 (82.93%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 760 additional samples on MalwareBazaar
Result
Malware family:
njrat
Score:
10/10
Tags:
family:njrat persistence suricata trojan
Behaviour
Creates scheduled task(s)
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Unpacked files
SH256 hash:
3b3881061a223d64937333071ff1f6c1f27c33ac0290381913df100bff85c7b6
MD5 hash:
a097293efe56b5ad6dbbe5bdbc9105cc
SHA1 hash:
e323a815afd6fe2ad438a9a37c3c004689e3b96f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | AgentTesla |
|---|---|
| Author: | Harish Kumar P |
| Description: | Yara Rule to Detect AgentTesla |
| Rule name: | BAZT_B5_NOCEXInvalidStream |
|---|
| Rule name: | NETDIC208_NOCEX |
|---|
| Rule name: | NETDIC208_NOCEX_NOREACTOR |
|---|
| Rule name: | NETDIC_208 |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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