troldesh | de3b218ae82c286412030f12c5643bc9583816635e9b094127ae9132886faa1a

System Information Discovery

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1824-3-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-4-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-2-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-5-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-6-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-7-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-8-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-14-0x0000000000400000-0x00000000005DF000-memory.dmp	upx
behavioral2/memory/1824-516-0x0000000000400000-0x00000000005DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4372 set thread context of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88

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 3 IoCs

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

Query Registry

System Information Discovery

Processes:

WINWORD.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

WINWORD.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid	Process
5036	WINWORD.EXE
5036	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

pid	Process
1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe
1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe
1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe
1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

WINWORD.EXE

pid	Process
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE
5036	WINWORD.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 4372 wrote to memory of 1824	4372	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	88
PID 1824 wrote to memory of 5036	1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	91
PID 1824 wrote to memory of 5036	1824	730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4372
- C:\Users\Admin\AppData\Local\Temp\730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\730f9c3e99beda425754493c32dc3b2b_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\774FB094.rtf" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:5036

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

4