Analysis
- max time kernel
440s - max time network
1166s - platform
windows11-21h2_x64 - resource
win11-20231215-en - resource tags
arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system - submitted
28/01/2024, 01:47
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
chromelulz.exe
Resource
win10v2004-20231215-en
6 signatures
1800 seconds
General
- Target chromelulz.exe
- Size 25KB
- Sample240128-b7msbagha3
- SHA256 bb7ede5a2cff1bdbab9330a40cf3d44d7bfac7e1ec2675a7232b8b6702a9330d
- MD5 44ed94ca16bac143365f29b66d40beaf
- SHA1 078e2c7dd0b759234e25ce0476f07f2110983035
- SHA512 5673abcfbdf7bc0708132f155a7751971774e711d1a33d34644e262b51ee0d5ff7803a7bcdf1b68e8ad3df6013471921e0f8687ab5a34d3bb35fcd99b01741a0
- SSDEEP 384:5vcTzXQHKr9UE2KXb1vNUfg//mcBPp68sQcY1Q9bA55jRdqDMEK97WgYXohn:5vktrRjv+fy/JZ1QhAlQDMJ7Wgrh
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
njrat
Version
-
Njrat 0.7 Golden By Hassan Amiri
Botnet
-
lulz
C2
-
/0.tcp.us-cal-1.ngrok.io:9000
Mutex
-
Windows Update
Attributes
-
reg_key
Windows Update
-
splitter
|Hassan|
Signatures
- Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Chrome chromelulz.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-175642277-3213633112-3688900201-1000_Classes\Local Settings chromelulz.exe Key created \REGISTRY\USER\S-1-5-21-175642277-3213633112-3688900201-1000_Classes\Local Settings OpenWith.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1064 chromelulz.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 568 OpenWith.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\chromelulz.exe"C:\Users\Admin\AppData\Local\Temp\chromelulz.exe"1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
PID:1064
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:568