c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:58

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General

Target

CVE-2023-38831/exploit.py
Size

1KB
MD5

f04c728b8304521ee88ccea1bb8ddd54
SHA1

27ce9463a35d9fb4c3d11a1b56c7d4bbcda37e83
SHA256

2345ee5f0641c8fe1e0eff9b684336e65fdafb9b6ef5b21f343a04980e7e40bf
SHA512

22ef36af6717bd89b6541a0c1411106923095b620023e9b4ea999986bf4da3fe4098fc3341d6c64e7d42f4039f5eb77fa0da128eac4d1a813bd19694956c1a52

Score

3^/10

Malware Config

Signatures

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2688 AcroRd32.exe
2688 AcroRd32.exe

pid	process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 624 wrote to memory of 2544	624	cmd.exe	rundll32.exe
PID 624 wrote to memory of 2544	624	cmd.exe	rundll32.exe
PID 624 wrote to memory of 2544	624	cmd.exe	rundll32.exe
PID 2544 wrote to memory of 2688	2544	rundll32.exe	AcroRd32.exe
PID 2544 wrote to memory of 2688	2544	rundll32.exe	AcroRd32.exe
PID 2544 wrote to memory of 2688	2544	rundll32.exe	AcroRd32.exe
PID 2544 wrote to memory of 2688	2544	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\exploit.py
1⤵
- Suspicious use of WriteProcessMemory
PID:624

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\exploit.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2544

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\CVE-2023-38831\exploit.py"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2688

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
8b1d44d3b5e7978e029299a31d620385

SHA1
2673730bcf382a5084702d97cb0d1d5053c90bb6

SHA256
633f884c1a45e7bf1219a955b99d44cb598d310cdd8e3d6ab4786697aa727beb

SHA512
30486caaab0037d0dac17632a4467ed40380c53a59224387d98674da450337571a9b747cc0fde5004ce6c730fd31343349074accac7650e4a56e332093b0cbac

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