19857840331c8cc15dca34f5ad42c9d413cedfa307707d9c3764f2e7b43fc500

Analysis

max time kernel
167s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11-11-2022 05:41

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General

Target

Software Yuki/SoftwareDataDebug/examples/desktop.py
Size

438B
MD5

590b81e3bad1a80c955c3604e7db73eb
SHA1

a09783cb6addff207a4edff0be058417f6b769de
SHA256

ebe2c5d92dc865fc03252506aa80e914c94f7b8a9d020541794e44adb94ac2d7
SHA512

193c41a5327a800e7a950b20cf312213b395b6ca692f707c3f6e3bf12ca026144deee3c6058c304c5644643c1847103b984859c6ae085d9ca96eafd8c9274968

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1052 AcroRd32.exe
1052 AcroRd32.exe
1052 AcroRd32.exe

pid	process
1052	AcroRd32.exe
1052	AcroRd32.exe
1052	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1884 wrote to memory of 956	1884	cmd.exe	rundll32.exe
PID 1884 wrote to memory of 956	1884	cmd.exe	rundll32.exe
PID 1884 wrote to memory of 956	1884	cmd.exe	rundll32.exe
PID 956 wrote to memory of 1052	956	rundll32.exe	AcroRd32.exe
PID 956 wrote to memory of 1052	956	rundll32.exe	AcroRd32.exe
PID 956 wrote to memory of 1052	956	rundll32.exe	AcroRd32.exe
PID 956 wrote to memory of 1052	956	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Software Yuki\SoftwareDataDebug\examples\desktop.py"
1⤵
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Software Yuki\SoftwareDataDebug\examples\desktop.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:956

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\Software Yuki\SoftwareDataDebug\examples\desktop.py"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1052

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/956-76-0x0000000000000000-mapping.dmp

Download
memory/1052-81-0x0000000000000000-mapping.dmp

Download
memory/1052-82-0x0000000076321000-0x0000000076323000-memory.dmp

Filesize
8KB

Download
memory/1884-54-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp

Filesize
8KB

Download