8f75e0958f99e96dc69b2e13d5a51b1faf03fb3224d8ab072997e3007c9940c3

Analysis

max time kernel
150s
max time network
32s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
10/07/2023, 21:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Yarbrough/Mk2Y/Assets/DiffuseHD.dds
Size

1.3MB
MD5

3550b362301b6a57e510b391072e6d6f
SHA1

c1711489bfc6593379a41ae6f94665ccc1f91116
SHA256

c8a3375b01cc3cdadcf9086c0d4f42ac1245bce0f8f764459b324c83f1e77581
SHA512

2a5754399f390f0a9ee34e8e08842bdb78624dea60d438eb8321ec1fc2e6c387a56bab832dfe5e8dab94504901d15bf7740af5e648d5e4c1c750eccd7fb19bd0
SSDEEP

6144:WlQpbHTeXdh7NEDBILBdRP4VfXlftR231fT8IOgEzUCFcNF9g:rrT8pO

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 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\.dds\ = "dds_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\.dds	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000_CLASSES\dds_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2232	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2232	AcroRd32.exe
2232	AcroRd32.exe
2232	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2988	2332	cmd.exe	30
PID 2332 wrote to memory of 2988	2332	cmd.exe	30
PID 2332 wrote to memory of 2988	2332	cmd.exe	30
PID 2988 wrote to memory of 2232	2988	rundll32.exe	31
PID 2988 wrote to memory of 2232	2988	rundll32.exe	31
PID 2988 wrote to memory of 2232	2988	rundll32.exe	31
PID 2988 wrote to memory of 2232	2988	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseHD.dds
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseHD.dds
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2988
- - 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\Yarbrough\Mk2Y\Assets\DiffuseHD.dds"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2232

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
612daa7c4fedcf10cb2b13e8a40f3e58

SHA1
ca27e3a5342ae62f6454c1b3ac633652804d61e4

SHA256
823f79f7ebc3ca8e4ac822c5d1f9d1660461077e95eb3ef1ae4aa847c4b14a32

SHA512
9191879484d03db71395e72e31132a2ba48e19f71707547c3c43903326acc988d31d4ac5cf4736c6c692149d15e430c33d7561295ac70e44e1f9e7502822fde1

Download Submit