Analysis
- max time kernel
133s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
29/10/2024, 04:31
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
rAWB281024_.scr.exe
Resource
win7-20240903-en
8 signatures
150 seconds
General
- Target rAWB281024_.scr.exe
- Size 972KB
- Sample241029-e5dcmssrbk
- SHA256 88bb9bed8031190a16d24e5e26de559fb3ba8f7cda489b8f09cb40e2e1f2df9a
- MD5 dbea8d0867f7778d1a4ac7ee5c2ddcc9
- SHA1 ac3744a6d1ad36ef9d57fbb6a2f40f1a45f63637
- SHA512 d01230eaf87229e58627d763352b56e5cca8bc4e55fe852ada3df1e16bd6b1285e110e3c7507e5a50c37c391541bf1bcad257f0eebfb55231162edc8ef15a666
- SSDEEP 12288:OAgyHUjQ+OXk4lpfL0ND1+EpT3T8DRngh7S54yTf+GYATqgm9MuJr6rq4YjyndWm:ZUj4uhIEpTQVMA2l9MucrZk6z
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1812 powershell.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation rAWB281024_.scr.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1548 set thread context of 3472 1548 rAWB281024_.scr.exe 99 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rAWB281024_.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 752 schtasks.exe - Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 1548 rAWB281024_.scr.exe 1548 rAWB281024_.scr.exe 1548 rAWB281024_.scr.exe 1812 powershell.exe 1812 powershell.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe 3472 rAWB281024_.scr.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1548 rAWB281024_.scr.exe Token: SeDebugPrivilege 1812 powershell.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1548 wrote to memory of 1812 1548 rAWB281024_.scr.exe 95 PID 1548 wrote to memory of 1812 1548 rAWB281024_.scr.exe 95 PID 1548 wrote to memory of 1812 1548 rAWB281024_.scr.exe 95 PID 1548 wrote to memory of 752 1548 rAWB281024_.scr.exe 97 PID 1548 wrote to memory of 752 1548 rAWB281024_.scr.exe 97 PID 1548 wrote to memory of 752 1548 rAWB281024_.scr.exe 97 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99 PID 1548 wrote to memory of 3472 1548 rAWB281024_.scr.exe 99
Processes
-
C:\Users\Admin\AppData\Local\Temp\rAWB281024_.scr.exe"C:\Users\Admin\AppData\Local\Temp\rAWB281024_.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zrjxKRHUf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1812
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zrjxKRHUf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A2.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:752
-
-
C:\Users\Admin\AppData\Local\Temp\rAWB281024_.scr.exe"C:\Users\Admin\AppData\Local\Temp\rAWB281024_.scr.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3472
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hvj4y5o5.3mt.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp6A2.tmp
- Size 1KB
- SHA256 854c23b38f467d49705062301294f4b4f4dbddc02f9c0b24a8358130e7a53f78
- MD5 39e0e60230f4e1b3f34c5b7a5e0c8bbf
- SHA1 80c6d5bfdd42e03528e32aa3a48ec2f441d87c8e
- SHA512 88832862eb6f38a9550a5f98371edb0a752dac1e3b969008096d1cfe2b7f8ad73622a811b924ca4574992b4c64ceb6b9044942e355eb7035a2bd2a69dc8e93aa
- MD5 SHA1 SHA512