MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 993aae6da26821d44cde30c3f7a1a5d72aecb9084c60aa6894fd1370edfc1675. 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: 16


Intelligence 16 IOCs YARA 15 File information Comments

SHA256 hash: 993aae6da26821d44cde30c3f7a1a5d72aecb9084c60aa6894fd1370edfc1675
SHA3-384 hash: c25a3800003d59bfc957dadc4184cb6df264f8cf1ecdbfa4716a9a9e5def8a87fc3bd1c4e07ab26033f29d440411b0c0
SHA1 hash: d7bfde9b783d09a2b7cd44f38545443aa020092e
MD5 hash: 439647d0f8e3f8e73b252a8d2260d5d2
humanhash: hotel-finch-network-leopard
File name:439647d0f8e3f8e73b252a8d2260d5d2.exe
Download: download sample
Signature njrat
File size:44'032 bytes
First seen:2023-12-08 07:50:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:1ZykIYz/wpa9GP4Uy2vXO2m2EUSlhqzIIij+ZsNO3PlpJKkkjh/TzF7pWnGGgreT:fnIKR4gh2vOV2SwuXQ/ofi+L
TLSH T12713F84DB694E174D5FF8BF1B4A2B2890B71A017A806D30F99F114D94FB3AC09611EE7
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 abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.125.209.94:15872

Intelligence


File Origin
# of uploads :
1
# of downloads :
357
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm bladabindi cmd control greyware keylogger lolbin njrat rat replace schtasks
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1356020 Sample: b3RFyOIZUt.exe Startdate: 08/12/2023 Architecture: WINDOWS Score: 100 32 0.tcp.eu.ngrok.io 2->32 40 Snort IDS alert for network traffic 2->40 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 9 other signatures 2->46 9 b3RFyOIZUt.exe 1 3 2->9         started        12 Server.exe 1 2->12         started        15 Server.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 file5 30 C:\Users\user\AppData\Roaming\Bomber.exe, PE32 9->30 dropped 19 Bomber.exe 1 3 9->19         started        56 Antivirus detection for dropped file 12->56 58 Multi AV Scanner detection for dropped file 12->58 60 Machine Learning detection for dropped file 12->60 signatures6 process7 dnsIp8 34 0.tcp.eu.ngrok.io 18.158.249.75, 15872, 49704, 49709 AMAZON-02US United States 19->34 36 18.192.31.165, 15872, 49815, 49816 AMAZON-02US United States 19->36 38 3.125.223.134, 15872, 49737, 49738 AMAZON-02US United States 19->38 28 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 19->28 dropped 48 Antivirus detection for dropped file 19->48 50 Multi AV Scanner detection for dropped file 19->50 52 Protects its processes via BreakOnTermination flag 19->52 54 2 other signatures 19->54 24 schtasks.exe 1 19->24         started        file9 signatures10 process11 process12 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2023-12-05 15:09:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
32 of 37 (86.49%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Result
Malware family:
Score:
  10/10
Tags:
family:njrat botnet:hitbox trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
njRAT/Bladabindi
Malware Config
C2 Extraction:
0.tcp.eu.ngrok.io:15872
Unpacked files
SH256 hash:
993aae6da26821d44cde30c3f7a1a5d72aecb9084c60aa6894fd1370edfc1675
MD5 hash:
439647d0f8e3f8e73b252a8d2260d5d2
SHA1 hash:
d7bfde9b783d09a2b7cd44f38545443aa020092e
Detections:
Njrat MALWARE_Win_NjRAT CN_disclosed_20180208_c win_njrat_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:malware_Njrat_strings
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MAL_njrat
Author:SECUINFRA Falcon Team
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:RAT_win_njrat
Author:KrknSec
Description:Detects njRAT binaries.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat
Rule name:Skystars_LightDefender_Njrat_Rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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.

Comments