c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:58

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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
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2604 AcroRd32.exe
2604 AcroRd32.exe

pid	process
2604	AcroRd32.exe
2604	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2936 wrote to memory of 3004	2936	cmd.exe	rundll32.exe
PID 2936 wrote to memory of 3004	2936	cmd.exe	rundll32.exe
PID 2936 wrote to memory of 3004	2936	cmd.exe	rundll32.exe
PID 3004 wrote to memory of 2604	3004	rundll32.exe	AcroRd32.exe
PID 3004 wrote to memory of 2604	3004	rundll32.exe	AcroRd32.exe
PID 3004 wrote to memory of 2604	3004	rundll32.exe	AcroRd32.exe
PID 3004 wrote to memory of 2604	3004	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:2936

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:3004

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:2604

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
6cd82dc29ee3a953e2eb226d9246959a

SHA1
20f6fffc6ac244cd4753c484eb3f45467b910476

SHA256
1fd12beeb467f4ec35d63ac0a8fb7601b01aef5f322bd5aedcbd929c6bc6d2cb

SHA512
d9bc24df01ad541f482586ce2e11ae0b60b74ca6c4b81c843a689a12cea7f761720ad69e1d8c856fa5b15d8c27966d8d0cdf889f6984bb24749f5225e4ce44de

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