8fc52df7b6f8c39c5c7efcc75c2159570a6aa6beb27e01c4a13b742ab59f0a17

Analysis

max time kernel
161s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16-05-2023 15:16

Target

FS/cache/recovery/last_kmsg.7
Size

512KB
MD5

c4ff9395897a840c14a29de3945f5af3
SHA1

17a895f9598f1f84497dd4a4c7a3606e2ee9dd34
SHA256

350b92dbd52a58559a86c71e49f8e2fa394ea3edea0f3a4d21a2d32b8ef43c05
SHA512

0eb06877f72adc8dae02c06dc0fe374d84b205abf1e93be2203eb5d6fa0708086b5e25b45b295efeb7243f86e0f2789f3b3c812ea90d236261f6909abf81388c
SSDEEP

1536:M2Gb8KweaVRbTU8PhbHkDOIQBECz70dI1QqikgecL0Dp:k2eu7bHk9QBECFHjgezp

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\.7	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
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\7_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.7\ = "7_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1764	AcroRd32.exe
1764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1620	1508	cmd.exe	28
PID 1508 wrote to memory of 1620	1508	cmd.exe	28
PID 1508 wrote to memory of 1620	1508	cmd.exe	28
PID 1620 wrote to memory of 1764	1620	rundll32.exe	29
PID 1620 wrote to memory of 1764	1620	rundll32.exe	29
PID 1620 wrote to memory of 1764	1620	rundll32.exe	29
PID 1620 wrote to memory of 1764	1620	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\FS\cache\recovery\last_kmsg.7
1⤵
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\FS\cache\recovery\last_kmsg.7
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1620
- - 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\FS\cache\recovery\last_kmsg.7"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1764

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact