c423fd6189e05d649981d49edf989437f164bd27ee6c4d224db2f9f879ec1425

Analysis

max time kernel
152s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21/05/2023, 11:44

Target

usb-loader/codes/RF7J08.gct
Size

24B
MD5

f05585b59a97b2d4ccb924d3cdfd76eb
SHA1

9c36c748ce3b8b1a10ed47c83d98d32102b10b52
SHA256

aca1e213cf838d7ec20068f2f9f7388ab81510e785f5b486b794d293f5ba66c2
SHA512

f720e327bba09f82f21dd299e23909662d9f70b21b9542f4398ea3bc8cfd154fa1baff8541d658c1aecc241ddb772ed4da0dcf48046589babd7d5a3cd3590f0a

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.gct	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.gct\ = "gct_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\gct_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 556	820	cmd.exe	28
PID 820 wrote to memory of 556	820	cmd.exe	28
PID 820 wrote to memory of 556	820	cmd.exe	28
PID 556 wrote to memory of 856	556	rundll32.exe	29
PID 556 wrote to memory of 856	556	rundll32.exe	29
PID 556 wrote to memory of 856	556	rundll32.exe	29
PID 556 wrote to memory of 856	556	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\usb-loader\codes\RF7J08.gct
1⤵
- Suspicious use of WriteProcessMemory
PID:820
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\usb-loader\codes\RF7J08.gct
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:556
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\usb-loader\codes\RF7J08.gct"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:856

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact