cc744204664bbe57a739b6dc9ea221a6480c7331677c208b05b451bccd31a102

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
09-12-2023 22:48

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General

Target

Spoof/WindowsFormsApp2.pdb
Size

157KB
MD5

f025cf0fa18e2f7998906242788384ae
SHA1

fa9bff5f1045856fa9f30a1d7b8b3f06eee26a24
SHA256

b8cb1cb9d680aea4cfe96ccadeaf32de60aa5011d27da7065346b52d8c79b9e9
SHA512

4ae331800a1cdb58fa22027ab61e345152747cf3c6c4534bec85b25e49602fdbec2bd7b66a4bfcd1f5f0999fe12df0a07dde97a5fa15461fa3e212ddff1c2312
SSDEEP

3072:+pt7TdHHf17DDFfZfnxpe4YYURnNbjv9Bi9uaZUZtUxJJXQz6mlKzGXSAdDqUFtV:+m9nN/Di9uaZUUmlKzGXSAdQ9fZU7mlf

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-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.pdb	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2540 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2540 AcroRd32.exe
2540 AcroRd32.exe

pid	process
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 2692 wrote to memory of 2884	2692	cmd.exe	rundll32.exe
PID 2692 wrote to memory of 2884	2692	cmd.exe	rundll32.exe
PID 2692 wrote to memory of 2884	2692	cmd.exe	rundll32.exe
PID 2884 wrote to memory of 2540	2884	rundll32.exe	AcroRd32.exe
PID 2884 wrote to memory of 2540	2884	rundll32.exe	AcroRd32.exe
PID 2884 wrote to memory of 2540	2884	rundll32.exe	AcroRd32.exe
PID 2884 wrote to memory of 2540	2884	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Spoof\WindowsFormsApp2.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:2692

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Spoof\WindowsFormsApp2.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2884

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\Spoof\WindowsFormsApp2.pdb"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2540

Network

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
caccb0a4e4535bd375f40d0a85776580

SHA1
dbd4a0f3867a1fec08284afaf0510c428d5559ab

SHA256
42ba4ed2be8d4188ab46e076a7de7ba427617f04fb891dbcb16ba105f9b1ba26

SHA512
0aa4541fb2220eaaa72721beffdcdf36f532747241f1b923e335b7a86ba91d862eec16af4256b327d5a81a8911e0cb9da2b6adcee40e244452fcd67826e8613b

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