912760fd67c9a6feed26ef7069e26cf69d603329610cfc255cc1cad160261105

Analysis

max time kernel
151s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28-11-2022 15:07

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General

Target

linux/gevent/_semaphore.py
Size

428B
MD5

12b6f68f6ebb6872f7a6d0d01778fa2a
SHA1

095f180a88895cfafd803810457bfdc9cc9445f5
SHA256

3a4b296756a97f663ece7f2608cfc8a50629ca56c344ab15434877af29a2cb24
SHA512

71abff6a12b3f58c35b81a8433b05b194c9602a3dae75ae5efbf9f118ca192974204483a7c3e060d65d33543b91d666e245eefa0140c114bd9048a29a27d5696

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	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
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_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

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1740 AcroRd32.exe
1740 AcroRd32.exe
1740 AcroRd32.exe

pid	process
1740	AcroRd32.exe
1740	AcroRd32.exe
1740	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 960 wrote to memory of 1544	960	cmd.exe	rundll32.exe
PID 960 wrote to memory of 1544	960	cmd.exe	rundll32.exe
PID 960 wrote to memory of 1544	960	cmd.exe	rundll32.exe
PID 1544 wrote to memory of 1740	1544	rundll32.exe	AcroRd32.exe
PID 1544 wrote to memory of 1740	1544	rundll32.exe	AcroRd32.exe
PID 1544 wrote to memory of 1740	1544	rundll32.exe	AcroRd32.exe
PID 1544 wrote to memory of 1740	1544	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\linux\gevent\_semaphore.py
1⤵
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\linux\gevent\_semaphore.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1544

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\linux\gevent\_semaphore.py"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1740

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/960-54-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

Filesize
8KB

Download
memory/1544-76-0x0000000000000000-mapping.dmp

Download
memory/1740-81-0x0000000000000000-mapping.dmp

Download
memory/1740-82-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

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