0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

Chronos/src/utils/__pycache__/DownloadToken.cpython-310.pyc
Size

879B
MD5

1f4f7367f32adb2dadcdc325d8a9163c
SHA1

7d74a3ea71a8f6d161eb4ef1aabd856749017979
SHA256

6d4bd5ad57050773b731ea44608949e5c6c99ba10a030e391a6268cbfb92c533
SHA512

29d8bbd8bec932b9a0cee8db3cd434a2e8adc82506016a87897ff42936948da6cf2a76fac222b003039b0d3816e6292845ab1af4d32abe37ebf864c4cc6eede5

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2588 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2588 AcroRd32.exe
2588 AcroRd32.exe

pid	process
2588	AcroRd32.exe

pid	process
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2192 wrote to memory of 2572	2192	cmd.exe	rundll32.exe
PID 2192 wrote to memory of 2572	2192	cmd.exe	rundll32.exe
PID 2192 wrote to memory of 2572	2192	cmd.exe	rundll32.exe
PID 2572 wrote to memory of 2588	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2588	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2588	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2588	2572	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\DownloadToken.cpython-310.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2192

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\DownloadToken.cpython-310.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2572

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\Chronos\src\utils\__pycache__\DownloadToken.cpython-310.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2588

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
9ee4129d224bdeff473c1d09c496e7db

SHA1
6136c11b813e365ad89ab2592a7e07f627693742

SHA256
1b4d919390f99ba37d47ddbff2580805a9a16d80a621906060a2b23ec59dd6e3

SHA512
d0db4adde722d5cda6990a4fc5c4999bfc5852c37499477b73a236a6f76b63f9b5ed3099ef94ff77171f13a2bd461268c0a652a402ab28e8859069d914434558

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