amadey | 7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorgu.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
56	3536	rundll32.exe
57	2632	rundll32.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 4 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	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorgu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorgu.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	explorgu.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	NewB.exe

Executes dropped EXE 5 IoCs

pid	Process
4960	explorgu.exe
3132	koooooo.exe
3444	NewB.exe
2020	Second2.exe
2780	NewB.exe

Identifies Wine through registry keys 2 TTPs 2 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-1-5-21-3270530367-132075249-2153716227-1000\Software\Wine	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key opened	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Software\Wine	explorgu.exe

Loads dropped DLL 4 IoCs

pid	Process
1816	rundll32.exe
3536	rundll32.exe
2632	rundll32.exe
2020	Second2.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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3084	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
4960	explorgu.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3132 set thread context of 4564	3132	koooooo.exe	100
PID 2020 set thread context of 4512	2020	Second2.exe	115

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorgu.job	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4544	3132	WerFault.exe	98
4320	4512	WerFault.exe	115

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
4408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3084	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
3084	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
4960	explorgu.exe
4960	explorgu.exe
4564	RegAsm.exe
4564	RegAsm.exe
4564	RegAsm.exe
4564	RegAsm.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
3536	rundll32.exe
2552	powershell.exe
2552	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	powershell.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 3132	4960	explorgu.exe	98
PID 4960 wrote to memory of 3132	4960	explorgu.exe	98
PID 4960 wrote to memory of 3132	4960	explorgu.exe	98
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 3132 wrote to memory of 4564	3132	koooooo.exe	100
PID 4960 wrote to memory of 3444	4960	explorgu.exe	104
PID 4960 wrote to memory of 3444	4960	explorgu.exe	104
PID 4960 wrote to memory of 3444	4960	explorgu.exe	104
PID 3444 wrote to memory of 4408	3444	NewB.exe	105
PID 3444 wrote to memory of 4408	3444	NewB.exe	105
PID 3444 wrote to memory of 4408	3444	NewB.exe	105
PID 4960 wrote to memory of 2020	4960	explorgu.exe	107
PID 4960 wrote to memory of 2020	4960	explorgu.exe	107
PID 4960 wrote to memory of 2020	4960	explorgu.exe	107
PID 4960 wrote to memory of 1816	4960	explorgu.exe	108
PID 4960 wrote to memory of 1816	4960	explorgu.exe	108
PID 4960 wrote to memory of 1816	4960	explorgu.exe	108
PID 1816 wrote to memory of 3536	1816	rundll32.exe	109
PID 1816 wrote to memory of 3536	1816	rundll32.exe	109
PID 3536 wrote to memory of 3028	3536	rundll32.exe	110
PID 3536 wrote to memory of 3028	3536	rundll32.exe	110
PID 3536 wrote to memory of 2552	3536	rundll32.exe	112
PID 3536 wrote to memory of 2552	3536	rundll32.exe	112
PID 4960 wrote to memory of 2632	4960	explorgu.exe	114
PID 4960 wrote to memory of 2632	4960	explorgu.exe	114
PID 4960 wrote to memory of 2632	4960	explorgu.exe	114
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115
PID 2020 wrote to memory of 4512	2020	Second2.exe	115

C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
"C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3084

C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Users\Admin\AppData\Local\Temp\1001058001\koooooo.exe
  "C:\Users\Admin\AppData\Local\Temp\1001058001\koooooo.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3132
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3132 -s 868
    3⤵
    - Program crash
    PID:4544
- C:\Users\Admin\AppData\Local\Temp\1001059001\NewB.exe
  "C:\Users\Admin\AppData\Local\Temp\1001059001\NewB.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3444
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN NewB.exe /TR "C:\Users\Admin\AppData\Local\Temp\1001059001\NewB.exe" /F
    3⤵
    - Creates scheduled task(s)
    PID:4408
- C:\Users\Admin\AppData\Local\Temp\1001061001\Second2.exe
  "C:\Users\Admin\AppData\Local\Temp\1001061001\Second2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
    3⤵
    PID:4512
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2036
      4⤵
      Program crash
      PID:4320
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3536
  - - C:\Windows\system32\netsh.exe
      netsh wlan show profiles
      4⤵
      PID:3028
  - - 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\270530367132_Desktop.zip' -CompressionLevel Optimal
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2552
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:2632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3132 -ip 3132
1⤵
PID:4320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4512 -ip 4512
1⤵
PID:1232

C:\Users\Admin\AppData\Local\Temp\1001059001\NewB.exe
C:\Users\Admin\AppData\Local\Temp\1001059001\NewB.exe
1⤵
- Executes dropped EXE
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

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