amadey | 4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	aaa7af910c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	aaa7af910c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	aaa7af910c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	aaa7af910c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	aaa7af910c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	aaa7af910c.exe

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplong.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b311d39bb2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	aaa7af910c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 8 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	aaa7af910c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	aaa7af910c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplong.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplong.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b311d39bb2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b311d39bb2.exe

Executes dropped EXE 3 IoCs

pid	Process
2204	axplong.exe
1068	b311d39bb2.exe
1636	aaa7af910c.exe

Identifies Wine through registry keys 2 TTPs 4 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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	axplong.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	b311d39bb2.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	aaa7af910c.exe

Loads dropped DLL 6 IoCs

pid	Process
2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
2204	axplong.exe
2204	axplong.exe
2204	axplong.exe
2204	axplong.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	aaa7af910c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	aaa7af910c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\b311d39bb2.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1006208001\\b311d39bb2.exe"	axplong.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\aaa7af910c.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1006209001\\aaa7af910c.exe"	axplong.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
2204	axplong.exe
1068	b311d39bb2.exe
1636	aaa7af910c.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\axplong.job	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.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	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	axplong.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b311d39bb2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aaa7af910c.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
2204	axplong.exe
1068	b311d39bb2.exe
1636	aaa7af910c.exe
1636	aaa7af910c.exe
1636	aaa7af910c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	aaa7af910c.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2204	2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe	30
PID 2100 wrote to memory of 2204	2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe	30
PID 2100 wrote to memory of 2204	2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe	30
PID 2100 wrote to memory of 2204	2100	4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe	30
PID 2204 wrote to memory of 1068	2204	axplong.exe	32
PID 2204 wrote to memory of 1068	2204	axplong.exe	32
PID 2204 wrote to memory of 1068	2204	axplong.exe	32
PID 2204 wrote to memory of 1068	2204	axplong.exe	32
PID 2204 wrote to memory of 1636	2204	axplong.exe	34
PID 2204 wrote to memory of 1636	2204	axplong.exe	34
PID 2204 wrote to memory of 1636	2204	axplong.exe	34
PID 2204 wrote to memory of 1636	2204	axplong.exe	34

C:\Users\Admin\AppData\Local\Temp\4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.exe
"C:\Users\Admin\AppData\Local\Temp\4578d207fc6610750df1d6005c8e1ba3c00bdf9b89d8ac6d49bb4e6904729062.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:2100
- C:\Users\Admin\AppData\Local\Temp\44111dbc49\axplong.exe
  "C:\Users\Admin\AppData\Local\Temp\44111dbc49\axplong.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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Users\Admin\AppData\Local\Temp\1006208001\b311d39bb2.exe
    "C:\Users\Admin\AppData\Local\Temp\1006208001\b311d39bb2.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1068
- - C:\Users\Admin\AppData\Local\Temp\1006209001\aaa7af910c.exe
    "C:\Users\Admin\AppData\Local\Temp\1006209001\aaa7af910c.exe"
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Windows security modification
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1636

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion