modiloader | ce7b78e13a183be104074b4d2420a3959ca8d3e2443a4f6710f33c355f45166e

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	onloader32.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	onloader32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000510000-0x0000000000548000-memory.dmp	upx
behavioral1/memory/2444-2-0x0000000000510000-0x0000000000548000-memory.dmp	upx
behavioral1/memory/2444-15-0x0000000000510000-0x0000000000548000-memory.dmp	upx
behavioral1/memory/2836-19-0x00000000021A0000-0x00000000021D8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\onloader32 = "C:\\Windows\\onloader32.exe"	onloader32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	onloader32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	onloader32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\onloader32.exe	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
File opened for modification	C:\Windows\onloader32.exe	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.dll	onloader32.exe
File created	C:\Windows\cmsetac.dll	onloader32.exe

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 14 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	onloader32.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	onloader32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet	onloader32.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	onloader32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
Token: SeDebugPrivilege	2836	onloader32.exe
Token: SeDebugPrivilege	2836	onloader32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	onloader32.exe
2836	onloader32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2836	2444	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe	28
PID 2444 wrote to memory of 2836	2444	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe	28
PID 2444 wrote to memory of 2836	2444	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe	28
PID 2444 wrote to memory of 2836	2444	0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe	28

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	onloader32.exe

C:\Users\Admin\AppData\Local\Temp\0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e6be27558672adbfabd67ef09d9625c_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\onloader32.exe
  "C:\Windows\onloader32.exe"
  2⤵
  - UAC bypass
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:2836

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

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

3

System Information Discovery

5