Analysis
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max time kernel
31s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
29-03-2023 01:55
Behavioral task
behavioral1
Sample
TGX.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
TGX.exe
Resource
win10v2004-20230220-en
General
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Target
TGX.exe
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Size
38KB
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MD5
ee272fb8a6844eb8b30f35614f0baa1f
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SHA1
48be70669ce639e648fca442892f458c8729aca0
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SHA256
9b752a8369dc49b5fb2164b2b2e9f2ab7c7e8a3f0d99ed38edd7745cc4004236
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SHA512
341287070bd21cb60e012473837c54d8cb7f8b322adec81f71215cd86a2116fadcafee44c518f0ba27863c7d0490dd77e23695f55612af0cc03c4a3646f1d785
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SSDEEP
768:DzpMBIG6sJLIuv+044PF5Ph9tbkOwhnICFYCgc/:P6PDLfdFD9t4OwW8zJ
Malware Config
Extracted
xworm
browser-bangladesh.at.ply.gg:14018
Dmpd64MhhEQE1POv
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install_file
USB.exe
Signatures
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Drops startup file 2 IoCs
Processes:
TGX.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TGX.lnk TGX.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TGX.lnk TGX.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
TGX.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run\TGX = "C:\\Users\\Admin\\AppData\\Roaming\\TGX.exe" TGX.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
TGX.exepid process 1976 TGX.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
TGX.exedescription pid process Token: SeDebugPrivilege 1976 TGX.exe Token: SeDebugPrivilege 1976 TGX.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
TGX.exepid process 1976 TGX.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
TGX.exedescription pid process target process PID 1976 wrote to memory of 812 1976 TGX.exe schtasks.exe PID 1976 wrote to memory of 812 1976 TGX.exe schtasks.exe PID 1976 wrote to memory of 812 1976 TGX.exe schtasks.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\TGX.exe"C:\Users\Admin\AppData\Local\Temp\TGX.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TGX" /tr "C:\Users\Admin\AppData\Roaming\TGX.exe"2⤵
- Creates scheduled task(s)
PID:812
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C:\Windows\system32\taskeng.exetaskeng.exe {FFC4D5EC-0F80-4A11-930C-2238C09977AB} S-1-5-21-3430344531-3702557399-3004411149-1000:WFSTZEPN\Admin:Interactive:[1]1⤵PID:816