ee0c0dc46fce3803603995d998a1a09618f743e88bf26f3a256b5555a72ef978

Analysis

max time kernel
149s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 15:04

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General

Target

gonb1723/PayloadX$StreamConnector.class
Size

1KB
MD5

d9ff997c928010f79acab779d358ac35
SHA1

8d5bdcd4ce73f31ff250fcd0bfbf6ff311d7c28d
SHA256

59055cc65d8266391a51be47f2a8ddeabeb9a030e8fe870dae1b5b9858bfbba2
SHA512

9babb54a11998352c955463fabbfdc08ffc2549359f1d06a13fdf74f0ee99f01284ac79c7bfcf9c4b888ad79c446616ef22311779dec861c23b5cdf33288b616

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_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-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class\ = "class_auto_file"	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\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1984	AcroRd32.exe
1984	AcroRd32.exe
1984	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 1484	1424	cmd.exe	27
PID 1424 wrote to memory of 1484	1424	cmd.exe	27
PID 1424 wrote to memory of 1484	1424	cmd.exe	27
PID 1484 wrote to memory of 1984	1484	rundll32.exe	28
PID 1484 wrote to memory of 1984	1484	rundll32.exe	28
PID 1484 wrote to memory of 1984	1484	rundll32.exe	28
PID 1484 wrote to memory of 1984	1484	rundll32.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\gonb1723\PayloadX$StreamConnector.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\gonb1723\PayloadX$StreamConnector.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1484
- - 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\gonb1723\PayloadX$StreamConnector.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1424-54-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp

Filesize
8KB

Download
memory/1984-82-0x0000000076151000-0x0000000076153000-memory.dmp

Filesize
8KB

Download