Analysis
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max time kernel
141s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2024, 20:13
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20241010-en
General
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Target
file.exe
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Size
3.8MB
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MD5
f5d31bef57f4d69af9f1b44a6f8f8d5e
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SHA1
2ffa0bb9f123f6e8cda8ef398d33c1c71a01961e
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SHA256
88dbbdcc10e16ae14103f8a0cbcd2d692668fc78efcc36a406880ff1e6b5fac0
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SHA512
c07729ab676d6db44b0176fd64d0ec79936bbdba2f2526f7b2f24e4e407e8100372329195018d661e2d79536cd02b9046acf739cebee0607aacbfa3331d9395a
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SSDEEP
49152:oyXV/ctnAqeOjKiPPDWw9OmzBo4H0yr+334/PYWsRtQ4vEphxd+ykCSMpt4xYhp0:rcO2RPP8mlH0yr+0W/5vEpnYmuxY7HET
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" file.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\file.exe = "0" file.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths file.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions file.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4852 powershell.exe 5012 powershell.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools file.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion file.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation file.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk powershell.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths file.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions file.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\file.exe = "0" file.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA file.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" file.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum file.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 file.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1232 set thread context of 2648 1232 file.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5012 powershell.exe 4852 powershell.exe 4852 powershell.exe 4852 powershell.exe 5012 powershell.exe 5012 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1232 file.exe Token: SeDebugPrivilege 5012 powershell.exe Token: SeDebugPrivilege 4852 powershell.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 1232 wrote to memory of 4852 1232 file.exe 88 PID 1232 wrote to memory of 4852 1232 file.exe 88 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 2648 1232 file.exe 89 PID 1232 wrote to memory of 1460 1232 file.exe 90 PID 1232 wrote to memory of 1460 1232 file.exe 90 PID 2648 wrote to memory of 5012 2648 wmplayer.exe 92 PID 2648 wrote to memory of 5012 2648 wmplayer.exe 92 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" file.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1232 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\file.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4852
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C:\Program Files\Windows Media Player\wmplayer.exe"C:\Program Files\Windows Media Player\wmplayer.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$ws = New-Object -ComObject WScript.Shell; $s = $ws.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk'); $s.TargetPath = 'C:\Program Files\Windows Media Player\wmplayer.exe'; $s.Save()"3⤵
- Command and Scripting Interpreter: PowerShell
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5012
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C:\Program Files\Windows Media Player\wmplayer.exe"C:\Program Files\Windows Media Player\wmplayer.exe"2⤵PID:1460
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5440cb38dbee06645cc8b74d51f6e5f71
SHA1d7e61da91dc4502e9ae83281b88c1e48584edb7c
SHA2568ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe
SHA5123aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6
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Filesize
1KB
MD508f9f3eb63ff567d1ee2a25e9bbf18f0
SHA16bf06056d1bb14c183490caf950e29ac9d73643a
SHA25682147660dc8d3259f87906470e055ae572c1681201f74989b08789298511e5f0
SHA512425a4a8babbc11664d9bac3232b42c45ce8430b3f0b2ae3d9c8e12ad665cd4b4cbae98280084ee77cf463b852309d02ca43e5742a46c842c6b00431fc047d512
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82