Analysis
- max time kernel
159s - max time network
166s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system - submitted
10/11/2023, 04:36
Behavioral task
behavioral1
Sample
04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe
Resource
win7-20231023-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe
- Size 156KB
- Sample231110-e78lkach45
- SHA256 718a0d28eba875ac69a1b5f6705ec3d3498bbb63d28b43798278b45f60d0bff7
- MD5 04e4af4d7e4e7ae7b88edab9b2c7cfd7
- SHA1 00622a4ea62909d45599fcf72d76dde4c149ad0f
- SHA512 6d69daafbf46f68e3724ee4ee76738fe954b706584c6417c5a677154aff2fa2f67fab1386ff7420ef7b1929c64167128d3e9628e406d3cc158db0866d15de6d5
- SSDEEP 1536:IdM5obHYppi+gRJNghq87tgzEaRb2xw1bM5GiV4HC9DcjQsIF:IdYoT4i+yJihq8WzE7rMJhi
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
njrat
Version
-
im523
Botnet
-
HacKed
C2
-
4.tcp.eu.ngrok.io:15960
Mutex
-
0b5d07298ab3a8a8dbc39df27ed4dc74
Attributes
-
reg_key
0b5d07298ab3a8a8dbc39df27ed4dc74
-
splitter
|'|'|
Signatures
- Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 1092 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation 04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe - Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0b5d07298ab3a8a8dbc39df27ed4dc74.exe smss.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0b5d07298ab3a8a8dbc39df27ed4dc74.exe smss.exe - Executes dropped EXE 1 IoCs
pid Process 3272 smss.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0b5d07298ab3a8a8dbc39df27ed4dc74 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smss.exe\" .." smss.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0b5d07298ab3a8a8dbc39df27ed4dc74 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smss.exe\" .." smss.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe 3272 smss.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3272 smss.exe - Suspicious use of AdjustPrivilegeToken 31 IoCs
description pid Process Token: SeDebugPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe Token: 33 3272 smss.exe Token: SeIncBasePriorityPrivilege 3272 smss.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3468 wrote to memory of 3272 3468 04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe 96 PID 3468 wrote to memory of 3272 3468 04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe 96 PID 3468 wrote to memory of 3272 3468 04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe 96 PID 3272 wrote to memory of 1092 3272 smss.exe 100 PID 3272 wrote to memory of 1092 3272 smss.exe 100 PID 3272 wrote to memory of 1092 3272 smss.exe 100
Processes
-
C:\Users\Admin\AppData\Local\Temp\04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe"C:\Users\Admin\AppData\Local\Temp\04e4af4d7e4e7ae7b88edab9b2c7cfd7.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3468 -
C:\Users\Admin\AppData\Local\Temp\smss.exe"C:\Users\Admin\AppData\Local\Temp\smss.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\smss.exe" "smss.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:1092
-
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\smss.exe
- Size 156KB
- SHA256 718a0d28eba875ac69a1b5f6705ec3d3498bbb63d28b43798278b45f60d0bff7
- MD5 04e4af4d7e4e7ae7b88edab9b2c7cfd7
- SHA1 00622a4ea62909d45599fcf72d76dde4c149ad0f
- SHA512 6d69daafbf46f68e3724ee4ee76738fe954b706584c6417c5a677154aff2fa2f67fab1386ff7420ef7b1929c64167128d3e9628e406d3cc158db0866d15de6d5
- SSDEEP 1536:IdM5obHYppi+gRJNghq87tgzEaRb2xw1bM5GiV4HC9DcjQsIF:IdYoT4i+yJihq8WzE7rMJhi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\smss.exe
- Size 156KB
- SHA256 718a0d28eba875ac69a1b5f6705ec3d3498bbb63d28b43798278b45f60d0bff7
- MD5 04e4af4d7e4e7ae7b88edab9b2c7cfd7
- SHA1 00622a4ea62909d45599fcf72d76dde4c149ad0f
- SHA512 6d69daafbf46f68e3724ee4ee76738fe954b706584c6417c5a677154aff2fa2f67fab1386ff7420ef7b1929c64167128d3e9628e406d3cc158db0866d15de6d5
- SSDEEP 1536:IdM5obHYppi+gRJNghq87tgzEaRb2xw1bM5GiV4HC9DcjQsIF:IdYoT4i+yJihq8WzE7rMJhi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\smss.exe
- Size 156KB
- SHA256 718a0d28eba875ac69a1b5f6705ec3d3498bbb63d28b43798278b45f60d0bff7
- MD5 04e4af4d7e4e7ae7b88edab9b2c7cfd7
- SHA1 00622a4ea62909d45599fcf72d76dde4c149ad0f
- SHA512 6d69daafbf46f68e3724ee4ee76738fe954b706584c6417c5a677154aff2fa2f67fab1386ff7420ef7b1929c64167128d3e9628e406d3cc158db0866d15de6d5
- SSDEEP 1536:IdM5obHYppi+gRJNghq87tgzEaRb2xw1bM5GiV4HC9DcjQsIF:IdYoT4i+yJihq8WzE7rMJhi
- MD5 SHA1 SHA512 SSDEEP