8e86e10a9b3a48604514c4fab81a68afcc48d1cbcf932255afdc8ca85e33c12d

Analysis

max time kernel
301s
max time network
31s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
17/05/2023, 04:26

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General

Target

PvZRT_Data/KcArray.mfx
Size

32KB
MD5

e6e75d5e75a02743fe0efd673620bc5a
SHA1

5366b499e6413f6ddbbf53ce3ba4da3da260f69b
SHA256

4acc16898136313b0ba79b458c33f8d2194edb7f398124800bac70796086e5f6
SHA512

efb1bac52b282fbea2b7003697ba959029b362a3c35c96c30d155636f1bc3735b858d80002427d575570c456318b4095d4b9443b24fa63f57211083a978f916a
SSDEEP

384:pZccdAN+lc5k0gboA0iI10RhU2eZrGg2evY8LMxG:PccdrxkApI1wg/vY8g

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.mfx\ = "mfx_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.mfx	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\mfx_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1768	AcroRd32.exe
1768	AcroRd32.exe
1768	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 520	1880	cmd.exe	29
PID 1880 wrote to memory of 520	1880	cmd.exe	29
PID 1880 wrote to memory of 520	1880	cmd.exe	29
PID 520 wrote to memory of 1768	520	rundll32.exe	30
PID 520 wrote to memory of 1768	520	rundll32.exe	30
PID 520 wrote to memory of 1768	520	rundll32.exe	30
PID 520 wrote to memory of 1768	520	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PvZRT_Data\KcArray.mfx
1⤵
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PvZRT_Data\KcArray.mfx
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:520
- - 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\PvZRT_Data\KcArray.mfx"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1768

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

Windows 7 deprecation

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