c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
18s
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/prepare-commit-msg.sample
Size

1KB
MD5

2b5c047bdb474555e1787db32b2d2fc5
SHA1

2584806ba147152ae005cb675aa4f01d5d068456
SHA256

e9ddcaa4189fddd25ed97fc8c789eca7b6ca16390b2392ae3276f0c8e1aa4619
SHA512

50ec8a0dd98427e80a82a8d8ce44462a845876e1594c9d0e89483ce9a8aaad616edea0e5c45c1bb69d8fe7f520c6f2260d6fa350d77b400899c3ae375e965bfb

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-1-5-21-1298544033-3225604241-2703760938-1000_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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2872 AcroRd32.exe
2872 AcroRd32.exe

pid	process
2872	AcroRd32.exe
2872	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 756 wrote to memory of 2644	756	cmd.exe	rundll32.exe
PID 756 wrote to memory of 2644	756	cmd.exe	rundll32.exe
PID 756 wrote to memory of 2644	756	cmd.exe	rundll32.exe
PID 2644 wrote to memory of 2872	2644	rundll32.exe	AcroRd32.exe
PID 2644 wrote to memory of 2872	2644	rundll32.exe	AcroRd32.exe
PID 2644 wrote to memory of 2872	2644	rundll32.exe	AcroRd32.exe
PID 2644 wrote to memory of 2872	2644	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\prepare-commit-msg.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:756

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\prepare-commit-msg.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2644

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\prepare-commit-msg.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2872

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

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Downloads

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

MD5
9cc77fa79b6abc75306b1ac0547775f1

SHA1
234c94a475d19b47ed7ddd2061354ec895da587f

SHA256
a457871cf9bd0c953c213a7356f72b17ba77920e74d58911ce34262283736af5

SHA512
f0a80bb6c4322b7b1a7cd5df81e2abba73c1efaecbd305288774a0127fc89c9b779594b06f5d8278bfab87e0aba97ba4c91a30e7ad04954519e2f375158f6350

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