06d80d361565246d800cf095bdf3c5ee4333287d546f291a8b3906e8b33da322

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23/09/2022, 02:47

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General

Target

無印篇中文版.gba
Size

16.0MB
MD5

c9ef4307d26ff87f08604e4838813e41
SHA1

73c9cca925540f760fd0c772c53c5af13e2979f2
SHA256

9a573da21ac442a7ea91217057427e124ae6c870dceb56e386602a6f908046ce
SHA512

db7a094b9da261d863b1c47758e477d1c50fff0141eafd14e354951215f6bcef90dd9ef0eb6d760ea0c766ba4939e5fa47f301e009990e01a13a64d57aa6ef5d
SSDEEP

196608:/CybqLcsP4PY9KWnmm1TmYz4UhAM9OlIi5xjau9yucuixjEH:/C+qnAA9dNTPxwH

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-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.gba\ = "gba_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\gba_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.gba	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1716	AcroRd32.exe
1716	AcroRd32.exe
1716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 1736	1552	cmd.exe	29
PID 1552 wrote to memory of 1736	1552	cmd.exe	29
PID 1552 wrote to memory of 1736	1552	cmd.exe	29
PID 1736 wrote to memory of 1716	1736	rundll32.exe	30
PID 1736 wrote to memory of 1716	1736	rundll32.exe	30
PID 1736 wrote to memory of 1716	1736	rundll32.exe	30
PID 1736 wrote to memory of 1716	1736	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\無印篇中文版.gba
1⤵
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\無印篇中文版.gba
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1736
- - 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\無印篇中文版.gba"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1716

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/1552-54-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

Filesize
8KB

Download
memory/1716-82-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

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