c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:58

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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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sample	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2476 AcroRd32.exe
2476 AcroRd32.exe

pid	process
2476	AcroRd32.exe
2476	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2924 wrote to memory of 2668	2924	cmd.exe	rundll32.exe
PID 2924 wrote to memory of 2668	2924	cmd.exe	rundll32.exe
PID 2924 wrote to memory of 2668	2924	cmd.exe	rundll32.exe
PID 2668 wrote to memory of 2476	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 2476	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 2476	2668	rundll32.exe	AcroRd32.exe
PID 2668 wrote to memory of 2476	2668	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:2924

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:2668

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:2476

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
0a0be0fd65514947b273b13b862945f6

SHA1
055634bccf8881105043f9332fa26690b4903c2f

SHA256
a75bc145a41c3ad3e657f1873a9a9703013f35c0803a056e3ecf1fae7598c32a

SHA512
82ecfc74472436fc8fa01c227e17c3cc25e09448200289703204544deac7ec3a29f6dd68fa365a05ee37ea579a6957c5244d8acdcc7c21181387acf50e01b39c

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