c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 07:01

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General

Target

CVE-2023-38831/.git/hooks/pre-applypatch.sample
Size

424B
MD5

054f9ffb8bfe04a599751cc757226dda
SHA1

f208287c1a92525de9f5462e905a9d31de1e2d75
SHA256

e15c5b469ea3e0a695bea6f2c82bcf8e62821074939ddd85b77e0007ff165475
SHA512

cb78aa7e9b9c146e5db65d86dd83f04e2b6942a06fab50c704a0fd900683f3b6ad1164e74afe2f267f6da91cdff0b9ab07713e12cefc6f8d741b5df194f4fda6

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2528 AcroRd32.exe
2528 AcroRd32.exe

pid	process
2528	AcroRd32.exe
2528	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1776 wrote to memory of 2588	1776	cmd.exe	rundll32.exe
PID 1776 wrote to memory of 2588	1776	cmd.exe	rundll32.exe
PID 1776 wrote to memory of 2588	1776	cmd.exe	rundll32.exe
PID 2588 wrote to memory of 2528	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2528	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2528	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2528	2588	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\pre-applypatch.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:1776

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\.git\hooks\pre-applypatch.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2588

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\.git\hooks\pre-applypatch.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2528

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
d4e207934cb604f2507b2232870e091a

SHA1
00269eda895220d6b391d40adc93151770f3bae7

SHA256
08ed6062c0e8f00e7b4955b0eeefe91b93f015e950248da7134b8d20c1ad5121

SHA512
f6ac382cf042f8b0021de4638f5bd92416d9de1f2aa3a69a8dee365cfdb8fe36f248ac436643d9dfea0147a9ebaf82d6936d57105b47d4d0b45e39c12a3f0d9c

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