fee2d7d46ed5bd45a2f6f746fbe7a3e058d678af7d9236684999be3c1d618ed7

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	10c585f3ba26c90bdf1b5313a606af70N.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	chromehelper.exe

Loads dropped DLL 2 IoCs

pid	Process
5100	chromehelper.exe
5100	chromehelper.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\A:	chromehelper.exe
File opened (read-only)	\??\G:	chromehelper.exe
File opened (read-only)	\??\Q:	chromehelper.exe
File opened (read-only)	\??\T:	chromehelper.exe
File opened (read-only)	\??\X:	chromehelper.exe
File opened (read-only)	\??\Z:	chromehelper.exe
File opened (read-only)	\??\J:	chromehelper.exe
File opened (read-only)	\??\K:	chromehelper.exe
File opened (read-only)	\??\N:	chromehelper.exe
File opened (read-only)	\??\S:	chromehelper.exe
File opened (read-only)	\??\Y:	chromehelper.exe
File opened (read-only)	\??\W:	chromehelper.exe
File opened (read-only)	\??\B:	chromehelper.exe
File opened (read-only)	\??\O:	chromehelper.exe
File opened (read-only)	\??\R:	chromehelper.exe
File opened (read-only)	\??\U:	chromehelper.exe
File opened (read-only)	\??\V:	chromehelper.exe
File opened (read-only)	\??\P:	chromehelper.exe
File opened (read-only)	\??\E:	chromehelper.exe
File opened (read-only)	\??\H:	chromehelper.exe
File opened (read-only)	\??\I:	chromehelper.exe
File opened (read-only)	\??\L:	chromehelper.exe
File opened (read-only)	\??\M:	chromehelper.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google Chrome Helper\update.dll	chromehelper.exe
File opened for modification	C:\Program Files (x86)\Google Chrome Helper	10c585f3ba26c90bdf1b5313a606af70N.exe
File created	C:\Program Files (x86)\Google Chrome Helper\chromehelper.exe	10c585f3ba26c90bdf1b5313a606af70N.exe
File opened for modification	C:\Program Files (x86)\Google Chrome Helper\chromehelper.exe	10c585f3ba26c90bdf1b5313a606af70N.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 6 IoCs

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

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

System Information Discovery

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2980	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
2420	WINWORD.EXE
2420	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3168	10c585f3ba26c90bdf1b5313a606af70N.exe
3168	10c585f3ba26c90bdf1b5313a606af70N.exe
5100	chromehelper.exe
5100	chromehelper.exe
5100	chromehelper.exe
5100	chromehelper.exe

Suspicious use of SetWindowsHookEx 64 IoCs

pid	Process
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
4440	EXCEL.EXE
4440	EXCEL.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
2420	WINWORD.EXE
5100	chromehelper.exe
5100	chromehelper.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 5100	3168	10c585f3ba26c90bdf1b5313a606af70N.exe	97
PID 3168 wrote to memory of 5100	3168	10c585f3ba26c90bdf1b5313a606af70N.exe	97
PID 3168 wrote to memory of 5100	3168	10c585f3ba26c90bdf1b5313a606af70N.exe	97
PID 5100 wrote to memory of 1840	5100	chromehelper.exe	99
PID 5100 wrote to memory of 1840	5100	chromehelper.exe	99
PID 5100 wrote to memory of 1840	5100	chromehelper.exe	99
PID 1840 wrote to memory of 3440	1840	cmd.exe	101
PID 1840 wrote to memory of 3440	1840	cmd.exe	101
PID 1840 wrote to memory of 3440	1840	cmd.exe	101
PID 5100 wrote to memory of 4728	5100	chromehelper.exe	102
PID 5100 wrote to memory of 4728	5100	chromehelper.exe	102
PID 5100 wrote to memory of 4728	5100	chromehelper.exe	102
PID 4728 wrote to memory of 2980	4728	cmd.exe	104
PID 4728 wrote to memory of 2980	4728	cmd.exe	104
PID 4728 wrote to memory of 2980	4728	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\10c585f3ba26c90bdf1b5313a606af70N.exe
"C:\Users\Admin\AppData\Local\Temp\10c585f3ba26c90bdf1b5313a606af70N.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Program Files (x86)\Google Chrome Helper\chromehelper.exe
  "C:\Program Files (x86)\Google Chrome Helper\chromehelper.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5100
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C schtasks /QUERY /TN "Google Chrome Helper Update"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1840
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /QUERY /TN "Google Chrome Helper Update"
      4⤵
      PID:3440
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C schtasks /CREATE /XML "C:\Users\Admin\AppData\Local\Temp\EI9.xml" /TN "Google Chrome Helper Update"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4728
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /XML "C:\Users\Admin\AppData\Local\Temp\EI9.xml" /TN "Google Chrome Helper Update"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2980

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2420

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:4440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery