42f47cb41507151ec2db8422662adfd8d234533874740b6680ebd06f4f359403

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 03:33

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General

Target

PySilon-malware-3.7.5/resources/misc.py
Size

2KB
MD5

d6a7a397e1626ba1e7346f890f31866c
SHA1

a8d2e69bb24c287232a22055e0333c6da746853f
SHA256

98c3c9e981f91b6eb10db0217a16da8c7ba0891e6ad392061d1332fe4af96742
SHA512

dfd6f95aee07e1845e0a475b8473f92d73d03927e3835facb3c9ebebacbd4d34725dd26d63419d0b6e06a999d71c22c99e2697db585e19f397d15ba747425b6e

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2616 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2616 AcroRd32.exe
2616 AcroRd32.exe

pid	process
2616	AcroRd32.exe

pid	process
2616	AcroRd32.exe
2616	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2028 wrote to memory of 3036	2028	cmd.exe	rundll32.exe
PID 2028 wrote to memory of 3036	2028	cmd.exe	rundll32.exe
PID 2028 wrote to memory of 3036	2028	cmd.exe	rundll32.exe
PID 3036 wrote to memory of 2616	3036	rundll32.exe	AcroRd32.exe
PID 3036 wrote to memory of 2616	3036	rundll32.exe	AcroRd32.exe
PID 3036 wrote to memory of 2616	3036	rundll32.exe	AcroRd32.exe
PID 3036 wrote to memory of 2616	3036	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\misc.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\misc.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3036

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\PySilon-malware-3.7.5\resources\misc.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2616

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
f2f24a74646cbe4490b7c4a5a8ede374

SHA1
3609c1261ac7e7399b2819e68256fa63eabe4255

SHA256
6f08f304543bf9a2a83e15c79eeacff3a990434aeedda557b88d8e8290dee8eb

SHA512
2b167c936401915145822ca6cae0bc359b774155946882a571cd76cbf854f5a88e95ec28dcbc0b8ff9860426edbdd7f8c1c4b7a0cb1ce6de2ec8d6e8766ed9e3

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