amadey | d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.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	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe

Executes dropped EXE 3 IoCs

pid	Process
3000	skotes.exe
1520	DxfmGsU.exe
2944	25aa27ef7d.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	skotes.exe

Loads dropped DLL 5 IoCs

pid	Process
1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
3000	skotes.exe
3000	skotes.exe
3000	skotes.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
3000	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DxfmGsU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25aa27ef7d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
3000	skotes.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 3000	1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe	31
PID 1796 wrote to memory of 3000	1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe	31
PID 1796 wrote to memory of 3000	1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe	31
PID 1796 wrote to memory of 3000	1796	d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe	31
PID 3000 wrote to memory of 1520	3000	skotes.exe	33
PID 3000 wrote to memory of 1520	3000	skotes.exe	33
PID 3000 wrote to memory of 1520	3000	skotes.exe	33
PID 3000 wrote to memory of 1520	3000	skotes.exe	33
PID 3000 wrote to memory of 2944	3000	skotes.exe	34
PID 3000 wrote to memory of 2944	3000	skotes.exe	34
PID 3000 wrote to memory of 2944	3000	skotes.exe	34
PID 3000 wrote to memory of 2944	3000	skotes.exe	34

C:\Users\Admin\AppData\Local\Temp\d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.exe
"C:\Users\Admin\AppData\Local\Temp\d3b919cd719b576e9e6e93fcb54edc42d3882891ecad824c78b3201120c8e36f.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
  "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.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
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Users\Admin\AppData\Local\Temp\1016723001\DxfmGsU.exe
    "C:\Users\Admin\AppData\Local\Temp\1016723001\DxfmGsU.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1520
- - C:\Users\Admin\AppData\Local\Temp\1016738001\25aa27ef7d.exe
    "C:\Users\Admin\AppData\Local\Temp\1016738001\25aa27ef7d.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2944
- - C:\Users\Admin\AppData\Local\Temp\1016739001\d9da8a79e3.exe
    "C:\Users\Admin\AppData\Local\Temp\1016739001\d9da8a79e3.exe"
    3⤵
    PID:2504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

3

System Information Discovery

2

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2

Lateral Movement

Collection

Data from Local System