c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
50s
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/pre-merge-commit.sample
Size

416B
MD5

39cb268e2a85d436b9eb6f47614c3cbc
SHA1

04c64e58bc25c149482ed45dbd79e40effb89eb7
SHA256

d3825a70337940ebbd0a5c072984e13245920cdf8898bd225c8d27a6dfc9cb53
SHA512

e4dc204494f5062efa3032b00c64707a4f38978040482501b3e085f071e3ee5a9737d537e6a52002ceb4ebe2bfe09e555c5d969581e80b3eba2a922015c67960

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_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\ = "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\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

2752 AcroRd32.exe
2752 AcroRd32.exe

pid	process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2236 wrote to memory of 2716	2236	cmd.exe	rundll32.exe
PID 2236 wrote to memory of 2716	2236	cmd.exe	rundll32.exe
PID 2236 wrote to memory of 2716	2236	cmd.exe	rundll32.exe
PID 2716 wrote to memory of 2752	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2752	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2752	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2752	2716	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\pre-merge-commit.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:2236

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-merge-commit.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2716

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-merge-commit.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2752

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
3f6f247c53f92f6dbef074eccfc5c878

SHA1
64654e44035e5987ce49bf6c986eae569082d532

SHA256
1cfbf393a78ff687b188544a57004c797035bdd34226df9fd35be389c7548876

SHA512
6cddb85f9c1da6c223b37544a1898cd766e06b248434826686c20d4ce70f6125c1018e7b4fac5a62bc1f24e67f59b15c3bcd7ca551927a7438d60a438ba7f614

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