c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:58

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General

Target

CVE-2023-38831/.git/hooks/fsmonitor-watchman.sample
Size

4KB
MD5

a0b2633a2c8e97501610bd3f73da66fc
SHA1

0ec0ec9ac11111433d17ea79e0ae8cec650dcfa4
SHA256

e0549964e93897b519bd8e333c037e51fff0f88ba13e086a331592bf801fa1d0
SHA512

5168643c1768ec83554a9066754507a781b6d14251a46a469222d462efc6ca87a72c90679154e8a723349c91e7772b32ac9b08dfe313cded0ee0a6f17885079e
SSDEEP

96:GFCscBOvOFXDgRvi/3UCwN4ZlkRo/j5SpoNOBoi+geBIzCa:GFCsEOmWRa8CwN4ZqRo7geEk3IzCa

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\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell\Read\command	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
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.sample\ = "sample_auto_file"	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
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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2540 AcroRd32.exe
2540 AcroRd32.exe

pid	process
2540	AcroRd32.exe
2540	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1752 wrote to memory of 2736	1752	cmd.exe	rundll32.exe
PID 1752 wrote to memory of 2736	1752	cmd.exe	rundll32.exe
PID 1752 wrote to memory of 2736	1752	cmd.exe	rundll32.exe
PID 2736 wrote to memory of 2540	2736	rundll32.exe	AcroRd32.exe
PID 2736 wrote to memory of 2540	2736	rundll32.exe	AcroRd32.exe
PID 2736 wrote to memory of 2540	2736	rundll32.exe	AcroRd32.exe
PID 2736 wrote to memory of 2540	2736	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\fsmonitor-watchman.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:1752

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\fsmonitor-watchman.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2736

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\fsmonitor-watchman.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2540

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
caf109909bd3fbd309290c708c8fcc25

SHA1
a67c6964c293c314b28acc41691268d428295a3c

SHA256
e0b708616a523a0140a8db9dfd3b0538f90c7c9b00ec74357f60bb66a4a7ad45

SHA512
f99da11073d8fa931c3d1a5afba25df36ae25b3a87991fec7b496d58a04adee0d03b9bfc777a7ef195dc6463cccac6e07de86cd760fdcd58b9272846ad2abd1f

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