darktrack | 58fb41c622cfccae8febc06e0c04f25bdb613a5b260ae6f404e9d0eda5ea86ab

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rupedoras.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rupedoras.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rupedoras.exe

Executes dropped EXE 2 IoCs

pid	Process
4024	Predstavlenie № 6-51-2024 .docx.exe
4160	rupedoras.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/files/0x000900000001ac08-142.dat	themida
behavioral1/memory/4160-191-0x0000000000400000-0x0000000001F60000-memory.dmp	themida
behavioral1/memory/4160-192-0x0000000000400000-0x0000000001F60000-memory.dmp	themida
behavioral1/memory/4160-707-0x0000000000400000-0x0000000001F60000-memory.dmp	themida

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1892-698-0x0000000000400000-0x00000000004A8000-memory.dmp	upx
behavioral1/memory/1892-701-0x0000000000400000-0x00000000004A8000-memory.dmp	upx
behavioral1/memory/1892-704-0x0000000000400000-0x00000000004A8000-memory.dmp	upx
behavioral1/memory/1892-703-0x0000000000400000-0x00000000004A8000-memory.dmp	upx
behavioral1/memory/1892-702-0x0000000000400000-0x00000000004A8000-memory.dmp	upx
behavioral1/memory/1892-700-0x0000000000400000-0x00000000004A8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000\Software\Microsoft\Windows\CurrentVersion\Run\KWn3 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rupedoras.exe"	Predstavlenie № 6-51-2024 .docx.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rupedoras.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4160	rupedoras.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 1892	4160	rupedoras.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings	Predstavlenie № 6-51-2024 .docx.exe
Key created	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3328	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4984	WINWORD.EXE
4984	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4160	rupedoras.exe
4160	rupedoras.exe
4160	rupedoras.exe
4160	rupedoras.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1892	AddInProcess32.exe
4432	OpenWith.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	2352	7zFM.exe
Token: 35	2352	7zFM.exe
Token: SeSecurityPrivilege	2352	7zFM.exe
Token: SeDebugPrivilege	4160	rupedoras.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2352	7zFM.exe
2352	7zFM.exe

Suspicious use of SetWindowsHookEx 29 IoCs

pid	Process
5112	OpenWith.exe
4984	WINWORD.EXE
4984	WINWORD.EXE
4984	WINWORD.EXE
4984	WINWORD.EXE
4984	WINWORD.EXE
4984	WINWORD.EXE
4984	WINWORD.EXE
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe
4432	OpenWith.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 4984	4024	Predstavlenie № 6-51-2024 .docx.exe	84
PID 4024 wrote to memory of 4984	4024	Predstavlenie № 6-51-2024 .docx.exe	84
PID 4024 wrote to memory of 4160	4024	Predstavlenie № 6-51-2024 .docx.exe	86
PID 4024 wrote to memory of 4160	4024	Predstavlenie № 6-51-2024 .docx.exe	86
PID 4024 wrote to memory of 4160	4024	Predstavlenie № 6-51-2024 .docx.exe	86
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4160 wrote to memory of 1892	4160	rupedoras.exe	89
PID 4432 wrote to memory of 3328	4432	OpenWith.exe	93
PID 4432 wrote to memory of 3328	4432	OpenWith.exe	93

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\4423890.rar
1⤵
- Modifies registry class
PID:212

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:5112

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1476

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\4423890.rar"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2352

C:\Users\Admin\Desktop\Predstavlenie № 6-51-2024 .docx.exe
"C:\Users\Admin\Desktop\Predstavlenie № 6-51-2024 .docx.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\zapros.docx" /o ""
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:4984
- C:\Users\Admin\AppData\Local\Temp\rupedoras.exe
  C:\Users\Admin\AppData\Local\Temp\rupedoras.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    PID:1892

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Klog.dat
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

4

System Information Discovery

5

Virtualization/Sandbox Evasion