c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
48s
max time network
19s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:59

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General

Target

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

478B
MD5

ce562e08d8098926a3862fc6e7905199
SHA1

4de88eb95a5e93fd27e78b5fb3b5231a8d8917dd
SHA256

0223497a0b8b033aa58a3a521b8629869386cf7ab0e2f101963d328aa62193f7
SHA512

536cce804d84e25813993efdd240537b52d00ce9cdcecf1982f85096d56a521290104c825c00b370b2752201952a9616a3f4e28c5d27a5b4e4842101a2ff9bee

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell\Read\command	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_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\sample_auto_file\shell	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\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2684 AcroRd32.exe
2684 AcroRd32.exe

pid	process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1728 wrote to memory of 2576	1728	cmd.exe	rundll32.exe
PID 1728 wrote to memory of 2576	1728	cmd.exe	rundll32.exe
PID 1728 wrote to memory of 2576	1728	cmd.exe	rundll32.exe
PID 2576 wrote to memory of 2684	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2684	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2684	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2684	2576	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\applypatch-msg.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:1728

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\applypatch-msg.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2576

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\applypatch-msg.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2684

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
42f11afe8c772bd2985bc712a65d991d

SHA1
5b2987027b0e85cbe4b74df863399eaf76e0e340

SHA256
e5f69e8c869188f29b204b22bb70a41e28467043dd93c2b7295056851c284133

SHA512
cc77d429e6be2060cb6e2042e43c1dd505d7421ce3817fc6f4c9c5399054d437bc99a3b1ea497ae236aea156133b47e20285041fd4fd15b02bae1aba59a6718b

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