1fce3f6211996da0e3be88ffda9d78eeedf0acf7b55fbe67c52fd5764845110d

Analysis

max time kernel
224s
max time network
109s
platform
windows7_x64
resource
win7-20220414-en
submitted
03-07-2022 17:36

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General

Target

data/java/com/metasploit/meterpreter/MemoryBufferURLStreamHandler.class
Size

559B
MD5

cd2f61f20d45b812d5c2472a380d3b6f
SHA1

310e0d5dc3d72ec0edb88634b50f18b69dad034b
SHA256

e17f7e76c540d3b1cf314262bd32756ccf4e508ac201f115ec6b16f5e7a0dded
SHA512

1b095784a42dcbb8552147a0268ebe6fccabe54702f89621fdfef08c6ccdba8a7ee2144a7953b84ce0ab4b0df09a3cbc040565fcea43dec43a35e7fc810fddc5

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-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_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-1-5-21-2277218442-1199762539-2004043321-1000_Classes\Local Settings	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1224 AcroRd32.exe
1224 AcroRd32.exe
1224 AcroRd32.exe

pid	process
1224	AcroRd32.exe
1224	AcroRd32.exe
1224	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1636 wrote to memory of 320	1636	cmd.exe	rundll32.exe
PID 1636 wrote to memory of 320	1636	cmd.exe	rundll32.exe
PID 1636 wrote to memory of 320	1636	cmd.exe	rundll32.exe
PID 320 wrote to memory of 1224	320	rundll32.exe	AcroRd32.exe
PID 320 wrote to memory of 1224	320	rundll32.exe	AcroRd32.exe
PID 320 wrote to memory of 1224	320	rundll32.exe	AcroRd32.exe
PID 320 wrote to memory of 1224	320	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\java\com\metasploit\meterpreter\MemoryBufferURLStreamHandler.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data\java\com\metasploit\meterpreter\MemoryBufferURLStreamHandler.class
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:320

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\com\metasploit\meterpreter\MemoryBufferURLStreamHandler.class"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1224

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/320-76-0x0000000000000000-mapping.dmp

Download
memory/1224-81-0x0000000000000000-mapping.dmp

Download
memory/1224-82-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1636-54-0x000007FEFBD41000-0x000007FEFBD43000-memory.dmp

Filesize
8KB

Download