amadey | dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorha.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	lenin.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
10	1476	rundll32.exe
12	916	rundll32.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 6 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	lenin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	lenin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorha.exe

Executes dropped EXE 5 IoCs

pid	Process
2708	explorha.exe
668	lenin.exe
2256	InstallSetup8.exe
2900	InstallSetup8.exe
1668	InstallSetup8.exe

Identifies Wine through registry keys 2 TTPs 3 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Wine	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Wine	explorha.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Wine	lenin.exe

Loads dropped DLL 15 IoCs

pid	Process
2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
2708	explorha.exe
2708	explorha.exe
680	rundll32.exe
680	rundll32.exe
680	rundll32.exe
680	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
916	rundll32.exe
916	rundll32.exe
916	rundll32.exe
916	rundll32.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\lenin.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000010001\\lenin.exe"	explorha.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
2708	explorha.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorha.job	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

pid	Process
2420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
2708	explorha.exe
1476	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
1476	rundll32.exe
2156	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2708	2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe	28
PID 2732 wrote to memory of 2708	2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe	28
PID 2732 wrote to memory of 2708	2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe	28
PID 2732 wrote to memory of 2708	2732	dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe	28
PID 2708 wrote to memory of 668	2708	explorha.exe	30
PID 2708 wrote to memory of 668	2708	explorha.exe	30
PID 2708 wrote to memory of 668	2708	explorha.exe	30
PID 2708 wrote to memory of 668	2708	explorha.exe	30
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2708 wrote to memory of 2256	2708	explorha.exe	31
PID 2256 wrote to memory of 2420	2256	InstallSetup8.exe	32
PID 2256 wrote to memory of 2420	2256	InstallSetup8.exe	32
PID 2256 wrote to memory of 2420	2256	InstallSetup8.exe	32
PID 2256 wrote to memory of 2420	2256	InstallSetup8.exe	32
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 2708 wrote to memory of 680	2708	explorha.exe	34
PID 680 wrote to memory of 1476	680	rundll32.exe	35
PID 680 wrote to memory of 1476	680	rundll32.exe	35
PID 680 wrote to memory of 1476	680	rundll32.exe	35
PID 680 wrote to memory of 1476	680	rundll32.exe	35
PID 1476 wrote to memory of 936	1476	rundll32.exe	36
PID 1476 wrote to memory of 936	1476	rundll32.exe	36
PID 1476 wrote to memory of 936	1476	rundll32.exe	36
PID 1476 wrote to memory of 2156	1476	rundll32.exe	38
PID 1476 wrote to memory of 2156	1476	rundll32.exe	38
PID 1476 wrote to memory of 2156	1476	rundll32.exe	38
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2708 wrote to memory of 916	2708	explorha.exe	41
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 2900	2720	taskeng.exe	46
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47
PID 2720 wrote to memory of 1668	2720	taskeng.exe	47

C:\Users\Admin\AppData\Local\Temp\dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe
"C:\Users\Admin\AppData\Local\Temp\dcb1a17e199107565d24735a697f677487dbf253a834c20da0a9ef872af41dfe.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
  "C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Users\Admin\AppData\Local\Temp\1000010001\lenin.exe
    "C:\Users\Admin\AppData\Local\Temp\1000010001\lenin.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    PID:668
- - C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe
    "C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2256
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN InstallSetup8.exe /TR "C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe" /F
      4⤵
      Creates scheduled task(s)
      PID:2420
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:680
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1476
    - - C:\Windows\system32\netsh.exe
        
        netsh wlan show profiles
        5⤵
        
        PID:936
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\297530677122_Desktop.zip' -CompressionLevel Optimal
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2156
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    PID:916

C:\Windows\system32\taskeng.exe
taskeng.exe {DA688B62-AAF4-44A8-B92D-204614178DAD} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe
  C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe
  2⤵
  - Executes dropped EXE
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe
  C:\Users\Admin\AppData\Local\Temp\1000021001\InstallSetup8.exe
  2⤵
  - Executes dropped EXE
  PID:1668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

System Information Discovery

T1082

Virtualization/Sandbox Evasion