Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220721-en - resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system - submitted
10/08/2022, 11:16
Behavioral task
behavioral1
Sample
144f02cb3531c2873f68305cc66221be.exe
Resource
win7-20220715-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
144f02cb3531c2873f68305cc66221be.exe
Resource
win10v2004-20220721-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 144f02cb3531c2873f68305cc66221be.exe
- Size 37KB
- Sample220810-nc5e4abch4
- SHA256 adc7ae22497ae17e1b07d4b94b79517f2eff4eab89e001a7355edda20aca1f22
- MD5 144f02cb3531c2873f68305cc66221be
- SHA1 ef7c4b7335c107925474c46c60b6c596849dd00a
- SHA512 eb3c314132f63d9b315bc4402c34e877f1438ab3cb63deef20fb80019bb9301c7a61d13a0d9d9fc68729829dce38937d0440f57d85f215c323a8bfec9b8d4615
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
njrat
Version
-
im523
Botnet
-
HacKed
C2
-
2.tcp.eu.ngrok.io:11138
Mutex
-
8e7128232f5fdceabae90e8c2c52c822
Attributes
-
reg_key
8e7128232f5fdceabae90e8c2c52c822
-
splitter
|'|'|
Signatures
- Executes dropped EXE 1 IoCs
pid Process 396 System.exe - Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 2064 netsh.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation 144f02cb3531c2873f68305cc66221be.exe - Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e7128232f5fdceabae90e8c2c52c822.exe System.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e7128232f5fdceabae90e8c2c52c822.exe System.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8e7128232f5fdceabae90e8c2c52c822 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." System.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8e7128232f5fdceabae90e8c2c52c822 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .." System.exe - Drops autorun.inf file 1 TTPs 3 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created D:\autorun.inf System.exe File created C:\autorun.inf System.exe File opened for modification C:\autorun.inf System.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe 396 System.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 396 System.exe - Suspicious use of AdjustPrivilegeToken 33 IoCs
description pid Process Token: SeDebugPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe Token: 33 396 System.exe Token: SeIncBasePriorityPrivilege 396 System.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3472 wrote to memory of 396 3472 144f02cb3531c2873f68305cc66221be.exe 84 PID 3472 wrote to memory of 396 3472 144f02cb3531c2873f68305cc66221be.exe 84 PID 3472 wrote to memory of 396 3472 144f02cb3531c2873f68305cc66221be.exe 84 PID 396 wrote to memory of 2064 396 System.exe 85 PID 396 wrote to memory of 2064 396 System.exe 85 PID 396 wrote to memory of 2064 396 System.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\144f02cb3531c2873f68305cc66221be.exe"C:\Users\Admin\AppData\Local\Temp\144f02cb3531c2873f68305cc66221be.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3472 -
C:\Users\Admin\AppData\Roaming\System.exe"C:\Users\Admin\AppData\Roaming\System.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:2064
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\System.exe
- Size 37KB
- SHA256 adc7ae22497ae17e1b07d4b94b79517f2eff4eab89e001a7355edda20aca1f22
- MD5 144f02cb3531c2873f68305cc66221be
- SHA1 ef7c4b7335c107925474c46c60b6c596849dd00a
- SHA512 eb3c314132f63d9b315bc4402c34e877f1438ab3cb63deef20fb80019bb9301c7a61d13a0d9d9fc68729829dce38937d0440f57d85f215c323a8bfec9b8d4615
- SSDEEP 384:fJraoixJ9l7OHg1WykrFV3pk8emT2JrAF+rMRTyN/0L+EcoinblneHQM3epzXoNl:hr+R1NkrFV6NmArM+rMRa8Nu+met
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\System.exe
- Size 37KB
- SHA256 adc7ae22497ae17e1b07d4b94b79517f2eff4eab89e001a7355edda20aca1f22
- MD5 144f02cb3531c2873f68305cc66221be
- SHA1 ef7c4b7335c107925474c46c60b6c596849dd00a
- SHA512 eb3c314132f63d9b315bc4402c34e877f1438ab3cb63deef20fb80019bb9301c7a61d13a0d9d9fc68729829dce38937d0440f57d85f215c323a8bfec9b8d4615
- SSDEEP 384:fJraoixJ9l7OHg1WykrFV3pk8emT2JrAF+rMRTyN/0L+EcoinblneHQM3epzXoNl:hr+R1NkrFV6NmArM+rMRa8Nu+met
- MD5 SHA1 SHA512 SSDEEP