MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 674e6af13bc6b40d023c0d9306b7ba538f8dc7110da48067174858b605851aa1. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 674e6af13bc6b40d023c0d9306b7ba538f8dc7110da48067174858b605851aa1
SHA3-384 hash: 22ee4219490e046c600e5a895eb555684fb9defd8188b19ab09f0108af7004d60b111a73b37ea16b1cef3ee9263edf92
SHA1 hash: dd293763cd7e987812df0d0636f0bc0864a9b508
MD5 hash: e6c33161a31294f4787a946cdac9eecd
humanhash: winner-wisconsin-nevada-mike
File name:AHK.bin
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2020-08-03 08:20:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 384:AoG23hUidkGXR21cGMy8Pqq53tGFlymkirAF+rMRTyN/0L+EcoinblneHQM3epzw:pG23ZLGv8Pqq58imHrM+rMRa8Nutct
Threatray 44 similar samples on MalwareBazaar
TLSH DD033A4D7FE18168C5FD167B05B2D413077AE10B6E23D90E8FE164AA37636C58B50AF2
Reporter JAMESWT_WT
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37530/
Detection(s):
Win.Trojan.B-468
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.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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Creating a window
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Enabling autorun by creating a file
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407683
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Protects its processes via BreakOnTermination flag
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256137 Sample: AHK.bin Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 30 Malicious sample detected (through community Yara rule) 2->30 32 Detected njRat 2->32 34 Yara detected Njrat 2->34 36 7 other signatures 2->36 7 AHK.exe 3 6 2->7         started        12 AHK.exe 3 2->12         started        14 AHK.exe 2 2->14         started        16 AHK.exe 2 2->16         started        process3 dnsIp4 28 45.10.88.108, 1081, 49735, 49736 NTSERVICE-ASUA Ukraine 7->28 22 C:\...\193eb108b4eff07394ff6ffa45d60bae.exe, PE32 7->22 dropped 24 193eb108b4eff07394...exe:Zone.Identifier, ASCII 7->24 dropped 38 Protects its processes via BreakOnTermination flag 7->38 40 Creates autostart registry keys with suspicious names 7->40 42 Drops PE files to the startup folder 7->42 18 netsh.exe 3 7->18         started        26 C:\Users\user\AppData\Local\...\AHK.exe.log, ASCII 12->26 dropped file5 signatures6 process7 process8 20 conhost.exe 18->20         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/674e6af13bc6b40d023c0d9306b7ba538f8dc7110da48067174858b605851aa1/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 08:21:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m5hgv4j3y22a2ar4bwjqnn52kohy3ryrbwsiazyxjbmlmbmfdkqq._file
Verdict:
malicious
Similar samples:
25f59abfbdb775126b69112b260fae983e35bd6da0e6e13ad8fc7343da8540ec
njrat
5947d6a7fc4014628b957c4ed8ffff7c961f37f155cb814224a89e1f3700f060
njrat
62a5cd1fc65cdb2b773565e9861a48f139ee961156b38e26016c28a23fc896cc
njrat
abafeafa173768d556241bb6797fc4555b2358ce8d0dfdd81bab9f5f152c077f
njrat
b3a40e1d85f1e1608acf07414a8dea2730c0de0d824bc6165856b8fe00e8ed3d
njrat
ba38f08588d75d7ffd054253f4afd1d9803c2c0f5f390f35214c0b552840793d
njrat
dfa0c14670f8df1eac3e005262e901622c0ec1ccdcc91fd8aedb93da5a32ad64
njrat
e7e5f0ac865dd8cec6539a3defbd09f15df7822b647fcd2e2f53555be98ad8e2
njrat
ed34d4eba0bc7d434f32bb9bca0147632592656ddf0c2aa892fbee54b0850ff1
njrat
f0caf48005d504dfb402e3ef4b137187e9ffa0d903099222560d7f4a8885358d
njrat
+ 34 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence evasion
Link:
https://tria.ge/reports/200803-d9tjqb8j2n/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Modifies service
Adds Run key to start application
Adds Run key to start application
Drops startup file
Drops startup file
Modifies Windows Firewall
Modifies Windows Firewall
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/674e6af13bc6b40d023c0d9306b7ba538f8dc7110da48067174858b605851aa1

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:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter
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/37530/

Comments