12872ed8b719e61b4c93adf743d5cd7f31ae641a916a6be826733c0d5611ae82

Analysis

max time kernel
40s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 20:36

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General

Target

data.json
Size

5KB
MD5

ff487e97599b7040b0030465c270d74f
SHA1

0c0794b2af7325f07dac8f665a3195748675cc10
SHA256

6cec0424bad0943cad9785984edd4a36b8237b7bc06abd3748c659dc0f302700
SHA512

bcac4d625f93865a755c6a8bc1a625ca0a684630006fc17da3acd83e1a8fd79e4d80bbaad51a7ad81260330a7a130b09e00ddba0f9c49eb27e8ba2b313c40819
SSDEEP

96:jYP9KJJXkdYU+lbEHgKHqeMEgESd5VIq0+M8YLCpcyJtfYUAlpU5f:jwiudYU+lbgHEPi+7uCp17jAlC5f

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
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.json	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

940 AcroRd32.exe
940 AcroRd32.exe

pid	process
940	AcroRd32.exe
940	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1976 wrote to memory of 1728	1976	cmd.exe	rundll32.exe
PID 1976 wrote to memory of 1728	1976	cmd.exe	rundll32.exe
PID 1976 wrote to memory of 1728	1976	cmd.exe	rundll32.exe
PID 1728 wrote to memory of 940	1728	rundll32.exe	AcroRd32.exe
PID 1728 wrote to memory of 940	1728	rundll32.exe	AcroRd32.exe
PID 1728 wrote to memory of 940	1728	rundll32.exe	AcroRd32.exe
PID 1728 wrote to memory of 940	1728	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1728

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\data.json"
3⤵
- Suspicious use of SetWindowsHookEx
PID:940

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/940-81-0x0000000000000000-mapping.dmp

Download
memory/940-82-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download
memory/1728-76-0x0000000000000000-mapping.dmp

Download
memory/1976-54-0x000007FEFB531000-0x000007FEFB533000-memory.dmp

Filesize
8KB

Download