5a25cec5efa849f8bab0d75de0e860bd576599cf3f3ed89cc6e847e2f19603d3

Analysis

max time kernel
301s
max time network
125s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
22-11-2023 11:23

Target

Windows-11-v22H2-Security-Baseline/GPOs/{03A608E1-608B-4ECE-A44E-ACE3AF1ECD8B}/DomainSysvol/GPO/Machine/comment.cmtx
Size

547B
MD5

4144a17526d94ada40e9a422bfa369dc
SHA1

a10033ecc7322a406bb510ccc1eaf631cf55a613
SHA256

624d822e257ebc6def32f1efa8d3ac0531b2fd76bbc016190e2f0730d90b405f
SHA512

669780a56da63dbdec0692fc6cd8410c031128db12ccec851f225ea48de1bc62489dafc4c148dd347c64efb898f200d198ef36e3d9d7a1f6e02327903a6924e5

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\.cmtx\ = "cmtx_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\.cmtx	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\cmtx_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2912 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2912 AcroRd32.exe
2912 AcroRd32.exe
2912 AcroRd32.exe

pid	process
2912	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2828 wrote to memory of 2804	2828	cmd.exe	rundll32.exe
PID 2828 wrote to memory of 2804	2828	cmd.exe	rundll32.exe
PID 2828 wrote to memory of 2804	2828	cmd.exe	rundll32.exe
PID 2804 wrote to memory of 2912	2804	rundll32.exe	AcroRd32.exe
PID 2804 wrote to memory of 2912	2804	rundll32.exe	AcroRd32.exe
PID 2804 wrote to memory of 2912	2804	rundll32.exe	AcroRd32.exe
PID 2804 wrote to memory of 2912	2804	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Windows-11-v22H2-Security-Baseline\GPOs\{03A608E1-608B-4ECE-A44E-ACE3AF1ECD8B}\DomainSysvol\GPO\Machine\comment.cmtx
1⤵
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Windows-11-v22H2-Security-Baseline\GPOs\{03A608E1-608B-4ECE-A44E-ACE3AF1ECD8B}\DomainSysvol\GPO\Machine\comment.cmtx
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2804
- - 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\Windows-11-v22H2-Security-Baseline\GPOs\{03A608E1-608B-4ECE-A44E-ACE3AF1ECD8B}\DomainSysvol\GPO\Machine\comment.cmtx"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2912

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
43d49d79ddde2f15f7f35ca1a899f830

SHA1
f06da2bca9ea5a766bab1f66d76448e3a2476a77

SHA256
0ceaecf870c889f930b46ae1f99f5a043cc4db4a793b24b114986599485f405e

SHA512
dd7b84abdcb02f96da39fecce74e8e035bdc14431ea1a7a70491a62a97e5a56a23262e54a1609c6b591449f0e7295c6be26099fd6477ed41e5db59cdb41a1251

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