vidar | b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe

Downloads MZ/PE file

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	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\Control Panel\International\Geo\Nation	31033182315222576863.exe

Executes dropped EXE 3 IoCs

pid	Process
3364	15230580034268200751.exe
3960	31033182315222576863.exe
4860	DotNetServer.exe

Loads dropped DLL 2 IoCs

pid	Process
4752	AppLaunch.exe
4752	AppLaunch.exe

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
T1081

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/4496-141-0x00000000004B0000-0x0000000000B98000-memory.dmp	themida
behavioral1/memory/4496-178-0x00000000004B0000-0x0000000000B98000-memory.dmp	themida

Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

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	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4496 set thread context of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93

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 2 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	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AppLaunch.exe

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

pid	Process
3128	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3892	timeout.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe
4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe
4752	AppLaunch.exe
4752	AppLaunch.exe
4752	AppLaunch.exe
4752	AppLaunch.exe
4752	AppLaunch.exe
4752	AppLaunch.exe
3960	31033182315222576863.exe
3960	31033182315222576863.exe
4860	DotNetServer.exe
4860	DotNetServer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4496 wrote to memory of 4752	4496	b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe	93
PID 4752 wrote to memory of 3364	4752	AppLaunch.exe	95
PID 4752 wrote to memory of 3364	4752	AppLaunch.exe	95
PID 3364 wrote to memory of 2152	3364	15230580034268200751.exe	97
PID 3364 wrote to memory of 2152	3364	15230580034268200751.exe	97
PID 2152 wrote to memory of 3024	2152	cmd.exe	99
PID 2152 wrote to memory of 3024	2152	cmd.exe	99
PID 4752 wrote to memory of 3960	4752	AppLaunch.exe	100
PID 4752 wrote to memory of 3960	4752	AppLaunch.exe	100
PID 4752 wrote to memory of 3960	4752	AppLaunch.exe	100
PID 4752 wrote to memory of 4088	4752	AppLaunch.exe	101
PID 4752 wrote to memory of 4088	4752	AppLaunch.exe	101
PID 4752 wrote to memory of 4088	4752	AppLaunch.exe	101
PID 4088 wrote to memory of 3892	4088	cmd.exe	104
PID 4088 wrote to memory of 3892	4088	cmd.exe	104
PID 4088 wrote to memory of 3892	4088	cmd.exe	104
PID 3960 wrote to memory of 3128	3960	31033182315222576863.exe	107
PID 3960 wrote to memory of 3128	3960	31033182315222576863.exe	107
PID 3960 wrote to memory of 3128	3960	31033182315222576863.exe	107

C:\Users\Admin\AppData\Local\Temp\b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe
"C:\Users\Admin\AppData\Local\Temp\b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- 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:4496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4752
- - C:\ProgramData\15230580034268200751.exe
    "C:\ProgramData\15230580034268200751.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3364
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\15230580034268200751.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2152
    - - C:\Windows\system32\choice.exe
        
        choice /C Y /N /D Y /T 0
        5⤵
        
        PID:3024
- - C:\ProgramData\31033182315222576863.exe
    "C:\ProgramData\31033182315222576863.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3960
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /CREATE /TN "DotNetStartup" /TR "C:\ProgramData\DotNetSecurity\DotNetServer.exe" /SC MINUTE /RL HIGHEST
      4⤵
      Creates scheduled task(s)
      PID:3128
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4088
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:3892

C:\ProgramData\DotNetSecurity\DotNetServer.exe
C:\ProgramData\DotNetSecurity\DotNetServer.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

System Information Discovery