MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab4d6a82cafc92825a0b88183325855f0c44920da970b42c949d5d5ffdcc0585. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab4d6a82cafc92825a0b88183325855f0c44920da970b42c949d5d5ffdcc0585
SHA3-384 hash: 007d1f3224dce9510bab2828ce51157b34fe1edaf8ec48132ef4defd90a5c2c714625ee0737e5ea23c505fa9f985c87a
SHA1 hash: a2a7ac6eee62c39d1f7af01a0ec5d9fd3303b32d
MD5 hash: a64e20b9532a8657759de7b8a59ade56
humanhash: cola-august-music-robert
File name:a64e20b9532a8657759de7b8a59ade56.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2021-12-26 03:01:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 384:Ask8IiejnCVLO309QmykrtOGtom9fIv+KnExrAF+rMRTyN/0L+EcoinblneHQM3c:nddGdkrowZImKExrM+rMRa8NuXht
Threatray 397 similar samples on MalwareBazaar
TLSH T1ED032B4D7FE181A8C5FD067B05B2D41207BBE04F6A23D90E8EE564EA37636C58B50AF1
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.142.167.54:11308

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.142.167.54:11308 https://threatfox.abuse.ch/ioc/287689/

Intelligence

File Origin
# of uploads :
1
# of downloads :
464
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
VAC-Bypass-Loader.exe
Verdict:
Malicious activity
Analysis date:
2021-12-24 07:49:48 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/0a1ce31a-be4a-42af-a560-0191b164d400

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/216409/
Detection(s):
Win.Dropper.njRAT-7436651-0
Create hunting rule

Win.Packed.Generic-7672854-0
Create hunting rule

Win.Packed.Generic-7672855-0
Create hunting rule

Win.Packed.njRAT-7672853-1
Create hunting rule

Win.Packed.Bladabindi-7994427-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
DNS request
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Enabling the 'hidden' option for files in the %temp% directory
Enabling the 'hidden' option for recently created files
Creating a window
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
Searching for the window
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
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:
bladabindi fingerprint greyware keylogger njrat obfuscated packed rat stealer
Link:
https://www.filescan.io/uploads/61c7db35ec6c6c14a9f33369/reports/1e569786-cea7-45b3-943b-80cb13e0198e/overview
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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/46d73225-d27a-4831-b50a-676cba11081f
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/912881
Signature
.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
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
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
Sigma detected: Drops fake system file at system root drive
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses netsh to modify the Windows network and firewall settings
Uses taskkill to terminate AV processes
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 545359 Sample: PQkI3Ni5QX.exe Startdate: 26/12/2021 Architecture: WINDOWS Score: 100 45 8.tcp.ngrok.io 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 18 other signatures 2->59 9 PQkI3Ni5QX.exe 1 6 2->9         started        12 Runtime Broker.exe 3 2->12         started        14 Runtime Broker.exe 2 2->14         started        16 Runtime Broker.exe 2 2->16         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\Runtime Broker.exe, PE32 9->39 dropped 41 C:\...\Runtime Broker.exe:Zone.Identifier, ASCII 9->41 dropped 43 C:\Users\user\AppData\...\PQkI3Ni5QX.exe.log, ASCII 9->43 dropped 18 Runtime Broker.exe 2 11 9->18         started        process6 dnsIp7 47 3.142.129.56, 11308, 49752, 49759 AMAZON-02US United States 18->47 49 8.tcp.ngrok.io 3.142.167.4, 11308, 49750, 49772 AMAZON-02US United States 18->49 51 2 other IPs or domains 18->51 31 C:\svchost.exe, PE32 18->31 dropped 33 C:\...\6f7a15d185b84f9da2e68b7b97fe916f.exe, PE32 18->33 dropped 35 C:\svchost.exe:Zone.Identifier, ASCII 18->35 dropped 37 2 other malicious files 18->37 dropped 61 Uses taskkill to terminate AV processes 18->61 63 Protects its processes via BreakOnTermination flag 18->63 65 Creates autorun.inf (USB autostart) 18->65 67 Creates autostart registry keys with suspicious names 18->67 23 taskkill.exe 1 18->23         started        25 netsh.exe 1 3 18->25         started        file8 signatures9 process10 process11 27 conhost.exe 23->27         started        29 conhost.exe 25->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ab4d6a82cafc92825a0b88183325855f0c44920da970b42c949d5d5ffdcc0585/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-12-24 04:40:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
41 of 43 (95.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vngwvawk7sjiewqlramdgjmfl4gejeqnvfylileutvov77omawcq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
03f8315b61092daea8068fe527a0d94e8684d153e62bab70c4c4b667a452dfc8
njrat
423d89d3e4d7651aaf9a83e3ed444daae54e14b2104f5a8552ad61df7aebff4c
njrat
5320400539e21be4eee7c8adc75f045b957d5696007adb23c0f390bcfdfea9cc
njrat
772ca61d127be3c8992d2537bca4e0df6f77b68718d086cb4eef28fb7c6412b9
njrat
b2f0bc2708ed09126d4dcd9196b3c560622df056cd60475af82d8e998d5d45e6
njrat
c7b54cc4aa3d4b08652359ddb2e8b0d91ccd6d0a01c7a34eb527fde4f0f44957
njrat
ed34d4eba0bc7d434f32bb9bca0147632592656ddf0c2aa892fbee54b0850ff1
njrat
+ 387 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:fff evasion persistence trojan
Link:
https://tria.ge/reports/211226-djgbqsbbb3/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
8.tcp.ngrok.io:11308
Unpacked files
SH256 hash:
ab4d6a82cafc92825a0b88183325855f0c44920da970b42c949d5d5ffdcc0585
MD5 hash:
a64e20b9532a8657759de7b8a59ade56
SHA1 hash:
a2a7ac6eee62c39d1f7af01a0ec5d9fd3303b32d
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/735fdfe8-57b9-4ec7-9b38-05ee83403605/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ab4d6a82cafc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/ab4d6a82cafc92825a0b88183325855f0c44920da970b42c949d5d5ffdcc0585

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:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/216409/

Comments