cc566bd4e3bab54426f4940e6817ff0a1e0be39bfd2ece80cce4ee0c0674e02d

General

Target

Loader.exe
Size

44.2MB
MD5

3717f7d447fa2e11b78085b70b4db53d
SHA1

4fdceba008248c134f1ec61b16968816716b0140
SHA256

cc566bd4e3bab54426f4940e6817ff0a1e0be39bfd2ece80cce4ee0c0674e02d
SHA512

a6c942095ace315c77934ac2eff9f5535d992342abee31b8a2c328e694499c28ee71a3d9fb80351f9dfd62cb28c4eb73fb00563dae71f02fb6759c2c29e64ee2
SSDEEP

786432:yte4pWy7IuSLAtMXnjj/o0nGsJqNdT8biIY9eZOtuhq+4J/EjXbF:yte4UuSLAiXnjj1k7gnaeZOEh74JkbF

Score

10^/10

evasion themida trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

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

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2360-1-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida
behavioral1/memory/2360-2-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida
behavioral1/memory/2360-3-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida
behavioral1/memory/2360-6-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida
behavioral1/memory/2360-7-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida
behavioral1/memory/2360-9-0x000000013FD80000-0x0000000140D80000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Loader.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2879}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2859}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2869}	Loader.exe
File opened for modification	C:\Windows\System32\IME\IMETC\{69CD1F2D-DF68-4E23-9108-1B70783F2879}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2899}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2444}	Loader.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2360	Loader.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-UPDATE}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2893}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2892}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2859}	Loader.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2932	reg.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2360	Loader.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1892	powercfg.exe
Token: SeShutdownPrivilege	1892	powercfg.exe
Token: SeShutdownPrivilege	1892	powercfg.exe
Token: SeShutdownPrivilege	1892	powercfg.exe
Token: SeShutdownPrivilege	1892	powercfg.exe
Token: SeCreatePagefilePrivilege	1892	powercfg.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2360	Loader.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2012	2360	Loader.exe	28
PID 2360 wrote to memory of 2012	2360	Loader.exe	28
PID 2360 wrote to memory of 2012	2360	Loader.exe	28
PID 2012 wrote to memory of 1892	2012	cmd.exe	30
PID 2012 wrote to memory of 1892	2012	cmd.exe	30
PID 2012 wrote to memory of 1892	2012	cmd.exe	30
PID 2360 wrote to memory of 2684	2360	Loader.exe	32
PID 2360 wrote to memory of 2684	2360	Loader.exe	32
PID 2360 wrote to memory of 2684	2360	Loader.exe	32
PID 2684 wrote to memory of 2932	2684	cmd.exe	33
PID 2684 wrote to memory of 2932	2684	cmd.exe	33
PID 2684 wrote to memory of 2932	2684	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Powercfg -h off
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\system32\powercfg.exe
    Powercfg -h off
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1892
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\System32\reg.exe
    C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - Modifies registry key
    PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2360-0-0x0000000077970000-0x0000000077B19000-memory.dmp

Filesize
1.7MB

Download
memory/2360-1-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-2-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-3-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-6-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-7-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-9-0x000000013FD80000-0x0000000140D80000-memory.dmp

Filesize
16.0MB

Download
memory/2360-10-0x0000000077970000-0x0000000077B19000-memory.dmp

Filesize
1.7MB

Download
memory/2360-13-0x0000000077970000-0x0000000077B19000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads