80ee928d1c9395b8d4ab1fa21461dcbd561a1b15eb88f23be1d528460268be39

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 18:00

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General

Target

Stealer.pyc
Size

71KB
MD5

08efeae84deaffbb04080369bee72321
SHA1

64b8d052041de22e1027bad19b8d50493e2bb467
SHA256

6f97d33c902c8b561de53d8fede0e088ea1bc190fbdca5dbf1b7e42d7c62b5e7
SHA512

737e6dd9a3c8319e995fc5f391fee2f67ec665d40244d6fc323e1a22dfb5c2e06d0234b0a742acd5deae3aee1d84685fb92519561d5b7c5c7c859edb809e3f61
SSDEEP

768:T2zHKg6S6tRXI4MX6SfeD86FHL1WYG1htXTx8fPMBaS1XCZ0AnjtBnrQL4Yuhtb:T2zH76tRXIzJ6WP/xB4S1uF5FrKs

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-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2264 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2264 AcroRd32.exe
2264 AcroRd32.exe

pid	process
2264	AcroRd32.exe

pid	process
2264	AcroRd32.exe
2264	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2140 wrote to memory of 2732	2140	cmd.exe	rundll32.exe
PID 2140 wrote to memory of 2732	2140	cmd.exe	rundll32.exe
PID 2140 wrote to memory of 2732	2140	cmd.exe	rundll32.exe
PID 2732 wrote to memory of 2264	2732	rundll32.exe	AcroRd32.exe
PID 2732 wrote to memory of 2264	2732	rundll32.exe	AcroRd32.exe
PID 2732 wrote to memory of 2264	2732	rundll32.exe	AcroRd32.exe
PID 2732 wrote to memory of 2264	2732	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stealer.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2140

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stealer.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2732

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\Stealer.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2264

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
3bcd2c28e672d58086c611d4edeadb6b

SHA1
65b414b0641f5c7de03158ac6d04a92d4c933c8b

SHA256
edaf056300532aa462b3a312f193c50b6ecddbd7d845ad8ea59a02a0148be01a

SHA512
b884fd8b5126d617e6e05d3c2d5470d962997127c15970ee144adcc731e081ed3acf70ff469b59e984e312406af390d01ea86950c615aca0db6f2bf09c67a27f

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