Analysis
-
max time kernel
16s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
28-07-2023 21:08
Behavioral task
behavioral1
Sample
Uninstalr_Portable.exe
Resource
win7-20230712-en
General
-
Target
Uninstalr_Portable.exe
-
Size
4.0MB
-
MD5
a35881a67ec38f9bb4e33a8dbe013061
-
SHA1
7e0c222a5429574b326e2fca275e9629f33e1801
-
SHA256
297f90550fecab224d782ef73f1e2a777b70fcf2f90eb19460861a910e08b3b7
-
SHA512
7f76e13addbcf381f32f634a61d560726812963aa374f2a5810d8f501168366f8c0d606e0200164654f821ca27bcc2ea80f3cc81393eb4c3868bfcd56fdb8133
-
SSDEEP
98304:cJFjFiafJBZhaWQDXiWGUiJBUOXRpg324zzU:UPxfJBZhaWqXHUDozo
Malware Config
Signatures
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Processes:
resource yara_rule behavioral1/memory/2204-54-0x0000000000400000-0x00000000011C1000-memory.dmp upx behavioral1/memory/2204-65-0x0000000000400000-0x00000000011C1000-memory.dmp upx behavioral1/memory/2204-66-0x0000000000400000-0x00000000011C1000-memory.dmp upx behavioral1/memory/2204-69-0x0000000000400000-0x00000000011C1000-memory.dmp upx behavioral1/memory/2204-70-0x0000000000400000-0x00000000011C1000-memory.dmp upx behavioral1/memory/2204-71-0x0000000000400000-0x00000000011C1000-memory.dmp upx -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
Uninstalr_Portable.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 Uninstalr_Portable.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Uninstalr_Portable.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
Uninstalr_Portable.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS Uninstalr_Portable.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer Uninstalr_Portable.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName Uninstalr_Portable.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion Uninstalr_Portable.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
Uninstalr_Portable.exepowershell.exepid process 2204 Uninstalr_Portable.exe 2204 Uninstalr_Portable.exe 2204 Uninstalr_Portable.exe 2204 Uninstalr_Portable.exe 2204 Uninstalr_Portable.exe 2004 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2004 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
Uninstalr_Portable.exepid process 2204 Uninstalr_Portable.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Uninstalr_Portable.exepid process 2204 Uninstalr_Portable.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Uninstalr_Portable.exedescription pid process target process PID 2204 wrote to memory of 1764 2204 Uninstalr_Portable.exe cmd.exe PID 2204 wrote to memory of 1764 2204 Uninstalr_Portable.exe cmd.exe PID 2204 wrote to memory of 1764 2204 Uninstalr_Portable.exe cmd.exe PID 2204 wrote to memory of 1764 2204 Uninstalr_Portable.exe cmd.exe PID 2204 wrote to memory of 2004 2204 Uninstalr_Portable.exe powershell.exe PID 2204 wrote to memory of 2004 2204 Uninstalr_Portable.exe powershell.exe PID 2204 wrote to memory of 2004 2204 Uninstalr_Portable.exe powershell.exe PID 2204 wrote to memory of 2004 2204 Uninstalr_Portable.exe powershell.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Uninstalr_Portable.exe"C:\Users\Admin\AppData\Local\Temp\Uninstalr_Portable.exe"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c winget list --accept-source-agreements > "C:\Users\Admin\AppData\Local\Temp\Uninstalr_can_delete_x2_259448804.tmp"2⤵
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-AppxPackage -AllUsers | Out-File "C:\Users\Admin\AppData\Local\Temp\Uninstalr_can_delete_x1_259449069.tmp"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/2004-64-0x0000000074510000-0x0000000074ABB000-memory.dmpFilesize
5.7MB
-
memory/2004-62-0x0000000002740000-0x0000000002780000-memory.dmpFilesize
256KB
-
memory/2004-60-0x0000000074510000-0x0000000074ABB000-memory.dmpFilesize
5.7MB
-
memory/2004-59-0x0000000074510000-0x0000000074ABB000-memory.dmpFilesize
5.7MB
-
memory/2004-63-0x0000000002740000-0x0000000002780000-memory.dmpFilesize
256KB
-
memory/2004-61-0x0000000002740000-0x0000000002780000-memory.dmpFilesize
256KB
-
memory/2204-54-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB
-
memory/2204-55-0x00000000003C0000-0x00000000003C1000-memory.dmpFilesize
4KB
-
memory/2204-56-0x0000000004F10000-0x0000000004F20000-memory.dmpFilesize
64KB
-
memory/2204-65-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB
-
memory/2204-66-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB
-
memory/2204-67-0x00000000003C0000-0x00000000003C1000-memory.dmpFilesize
4KB
-
memory/2204-68-0x0000000004F10000-0x0000000004F20000-memory.dmpFilesize
64KB
-
memory/2204-69-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB
-
memory/2204-70-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB
-
memory/2204-71-0x0000000000400000-0x00000000011C1000-memory.dmpFilesize
13.8MB