290a717a8a5ba56eab597a74e3b0c87bf3995c24144bc69cfe659c6ec35007dd

Analysis

max time kernel
171s
max time network
49s
platform
windows7_x64
resource
win7-20220414-en
submitted
03-07-2022 17:37

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General

Target

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

1KB
MD5

2affb7e10add13e032cfcf7154392181
SHA1

7d220a9a9808c0e63154d996d32ffa28f5995dbc
SHA256

6b7fc3ba4eb116a803ad6f8b7ee3be2ccf479a1106890f116f02aa06e96126d8
SHA512

434f1dfb9cdd98da9ced3d5b4689d9a58707a304ed3d81a186e25253e8de3a176b9de5829dd222a0b9361ad112db074d1248dac29bcced23da79c52e399df30d

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-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\.class	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\class_auto_file\shell\Read\command	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
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\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1760 AcroRd32.exe
1760 AcroRd32.exe
1760 AcroRd32.exe

pid	process
1760	AcroRd32.exe
1760	AcroRd32.exe
1760	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1064 wrote to memory of 1208	1064	cmd.exe	rundll32.exe
PID 1064 wrote to memory of 1208	1064	cmd.exe	rundll32.exe
PID 1064 wrote to memory of 1208	1064	cmd.exe	rundll32.exe
PID 1208 wrote to memory of 1760	1208	rundll32.exe	AcroRd32.exe
PID 1208 wrote to memory of 1760	1208	rundll32.exe	AcroRd32.exe
PID 1208 wrote to memory of 1760	1208	rundll32.exe	AcroRd32.exe
PID 1208 wrote to memory of 1760	1208	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\java\javapayload\stage\Meterpreter.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1064

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\javapayload\stage\Meterpreter.class
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1208

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\Meterpreter.class"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1760

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/1064-54-0x000007FEFC331000-0x000007FEFC333000-memory.dmp

Filesize
8KB

Download
memory/1208-76-0x0000000000000000-mapping.dmp

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memory/1760-81-0x0000000000000000-mapping.dmp

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memory/1760-82-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

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