e198a1cf6988b3e8bffa5dec0b28c891c5ef4116c71fbc94d9a68ed9e9b444eb

Resubmissions

23-01-2023 13:41

230123-qzjg9add79 10

27-12-2022 17:22

221227-vxl8ksfd97 10

27-12-2022 17:10

221227-vprhbsae8t 10

Analysis

max time kernel
203s
max time network
338s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2022 17:22

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Report Analysis Logs

General

Target

zsys-master/cmd/zsysd/client/userdata.go
Size

3KB
MD5

061616e4f0f9ce146562de1f02c563f6
SHA1

fef72fc1a866b09b6b85f7e4db8801f9c9aaa348
SHA256

e1ab9e00301b17961e4b7f94b7f9407f6b19b0b914db5025f036066340217632
SHA512

4c65e27dba20da75d55229af74a583e18fb7d3e2cf4c5f0607a00065f9b4a33e731c3db28f4a5a02ba09e84d287fbb5f22b776c3e013d36b27e26084e51ad6bb

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 2 IoCs

Processes:

cmd.exeOpenWith.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

OpenWith.exe

pid	process
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

OpenWith.exe

description	pid	process	target process
PID 4012 wrote to memory of 4636	4012	OpenWith.exe	NOTEPAD.EXE
PID 4012 wrote to memory of 4636	4012	OpenWith.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\zsys-master\cmd\zsysd\client\userdata.go
1⤵
- Modifies registry class
PID:204

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4012

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\zsys-master\cmd\zsysd\client\userdata.go
2⤵
PID:4636

Network

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/4636-132-0x0000000000000000-mapping.dmp

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