1fce3f6211996da0e3be88ffda9d78eeedf0acf7b55fbe67c52fd5764845110d

Analysis

Target

data/java/javapayload/stage/Stage.class
Size

211B
MD5

9ba4719f65a14ce08344e016299645ee
SHA1

5f0c8580fd846c35aef1b709ea16fdb08af56571
SHA256

c0bdef98a4a29a70c34ca6b8866a50e9dd88924aea5fd2d62c9cfdf9aeb08235
SHA512

f0897f9afa4fc493e28c7a330c300c982bafa1f00f8fef3e328192dd60abe02f68b8d9a7528208e5cf257dd134785636445aad7c083e0483d0da3558f516bb93

Score

3^/10

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-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

584 AcroRd32.exe
584 AcroRd32.exe

pid	process
584	AcroRd32.exe
584	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1700 wrote to memory of 1988	1700	cmd.exe	rundll32.exe
PID 1700 wrote to memory of 1988	1700	cmd.exe	rundll32.exe
PID 1700 wrote to memory of 1988	1700	cmd.exe	rundll32.exe
PID 1988 wrote to memory of 584	1988	rundll32.exe	AcroRd32.exe
PID 1988 wrote to memory of 584	1988	rundll32.exe	AcroRd32.exe
PID 1988 wrote to memory of 584	1988	rundll32.exe	AcroRd32.exe
PID 1988 wrote to memory of 584	1988	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\java\javapayload\stage\Stage.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1700

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\java\javapayload\stage\Stage.class"
3⤵
- Suspicious use of SetWindowsHookEx
PID:584

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

memory/584-81-0x0000000000000000-mapping.dmp

Download
memory/584-82-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/1700-54-0x000007FEFBFD1000-0x000007FEFBFD3000-memory.dmp

Filesize
8KB

Download
memory/1988-76-0x0000000000000000-mapping.dmp

Download