8f75e0958f99e96dc69b2e13d5a51b1faf03fb3224d8ab072997e3007c9940c3

Analysis

max time kernel
150s
max time network
32s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
10/07/2023, 21:18

Target

Yarbrough/Mk2Y/Assets/DiffuseWindow2.dds
Size

341KB
MD5

40c902f4c42cd934d8d558bbf433b2b8
SHA1

1dfdbdc9d79117ddc6318d0c39b1ebb66afd0ebf
SHA256

ff9a55d462765376c263f3a1d83daaed82912f263a23ad03fd524816edb89871
SHA512

e32fadbca83e7add6688bdf6d7fd6540f4d92b479b754eb5be989326a38891190b70c9c1edd4bc715d7de90ed9a40aaa1bcd3ad576b556f58f94d274e8d9c480
SSDEEP

6144:YZj3dGUgxq5xtmnSW7RNKzRFNSXF5Ba15ntkTzI:YZbdGU5mn1owXFaBtkY

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-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.dds\ = "dds_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.dds	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 1480	836	cmd.exe	30
PID 836 wrote to memory of 1480	836	cmd.exe	30
PID 836 wrote to memory of 1480	836	cmd.exe	30
PID 1480 wrote to memory of 1652	1480	rundll32.exe	31
PID 1480 wrote to memory of 1652	1480	rundll32.exe	31
PID 1480 wrote to memory of 1652	1480	rundll32.exe	31
PID 1480 wrote to memory of 1652	1480	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseWindow2.dds
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseWindow2.dds
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1480
- - 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\Yarbrough\Mk2Y\Assets\DiffuseWindow2.dds"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1652

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact