c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
44s
max time network
20s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:59

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General

Target

CVE-2023-38831/.git/hooks/push-to-checkout.sample
Size

2KB
MD5

c7ab00c7784efeadad3ae9b228d4b4db
SHA1

508240328c8b55f8157c93c43bf5e291e5d2fbcb
SHA256

a53d0741798b287c6dd7afa64aee473f305e65d3f49463bb9d7408ec3b12bf5f
SHA512

586efb6a206f73d8a94561266153a624e2753830bc431a283bed998c46ac00a9df4995ddfd0aa852b1a22b4672c80f2c33cee3fe2e3321e392ff4cef26dbf75e

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-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.sample	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2728 AcroRd32.exe
2728 AcroRd32.exe

pid	process
2728	AcroRd32.exe
2728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1968 wrote to memory of 2660	1968	cmd.exe	rundll32.exe
PID 1968 wrote to memory of 2660	1968	cmd.exe	rundll32.exe
PID 1968 wrote to memory of 2660	1968	cmd.exe	rundll32.exe
PID 2660 wrote to memory of 2728	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2728	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2728	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2728	2660	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\push-to-checkout.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:1968

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\push-to-checkout.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2660

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\push-to-checkout.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2728

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
f7b60c891014670436b62deb87b99e7b

SHA1
225ec488f27482d89227b91682110e1369c91a9c

SHA256
5d7d48d23b37b4ed0c6b67d4852faf0db31a3c39513830a06f1bea680726e813

SHA512
0a258dac28395711de3f6b69c679dbc140454a754ff5234085dcdff95bcfb235e43889d83c4f333af1061bdbd1e5773e91bfd84705cf8f88f42ad08f874e9b40

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