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 07:01

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General

Target

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

1KB
MD5

2c642152299a94e05ea26eae11993b13
SHA1

a599b773b930ca83dbc3a5c7c13059ac4a6eaedc
SHA256

ecce9c7e04d3f5dd9d8ada81753dd1d549a9634b26770042b58dda00217d086a
SHA512

cc98bbe0e3865e2023af04416e10689e3aecd3f3928cf90c2acc0d3d7306388886779025c8967c8ea198af1f4fe29d16c65d4e1d546c7a8fa513f5ba7df16850

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

1764 AcroRd32.exe
1764 AcroRd32.exe

pid	process
1764	AcroRd32.exe
1764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2912 wrote to memory of 2668	2912	cmd.exe	rundll32.exe
PID 2912 wrote to memory of 2668	2912	cmd.exe	rundll32.exe
PID 2912 wrote to memory of 2668	2912	cmd.exe	rundll32.exe
PID 2668 wrote to memory of 1764	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 1764	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 1764	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 1764	2668	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\pre-push.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:2912

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-push.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2668

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-push.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1764

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
b2784ff66cdfaddfebc28a63483ec864

SHA1
1a471878eb2a0c29443093b2773a44edbeb81a6b

SHA256
2e99b97c53057e8887ca9ff08096661bd1375727e69f0f414871be2ef11730d8

SHA512
f9c23dcc4d5be895d37e1440261e2261be4bf09367ad8fc16c730ce42ad0621b84304f969f2c5250d75963bd32efcca6948b99a14ae3ff4c4a623ea9c606786d

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