8f75e0958f99e96dc69b2e13d5a51b1faf03fb3224d8ab072997e3007c9940c3

Analysis

max time kernel
150s
max time network
31s
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

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General

Target

Yarbrough/Mk2Y/Assets/DiffuseBlack2.dds
Size

176B
MD5

5874bd549936665a424ad4eacdca20ff
SHA1

16a920428f5c4795d6a7578244025b400859f04a
SHA256

a67f6336736b7c2b1bd834b448eb1f915b5c7078d8afb4e216b381cafbf528d6
SHA512

8c111f2c3ae5fdf5ba380812de443109d9619266ca8ffdcac0ac7ecfe8e65493e2b90b68b5284aed10b7051a40e7e17e7cb1b3e4cb36629b0ae7f8851aa84ccd

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-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.dds	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_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-1-5-21-1724861073-2584418204-2594431177-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.dds\ = "dds_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\dds_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1364	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1364	AcroRd32.exe
1364	AcroRd32.exe
1364	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2908	3008	cmd.exe	29
PID 3008 wrote to memory of 2908	3008	cmd.exe	29
PID 3008 wrote to memory of 2908	3008	cmd.exe	29
PID 2908 wrote to memory of 1364	2908	rundll32.exe	30
PID 2908 wrote to memory of 1364	2908	rundll32.exe	30
PID 2908 wrote to memory of 1364	2908	rundll32.exe	30
PID 2908 wrote to memory of 1364	2908	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseBlack2.dds
1⤵
- Suspicious use of WriteProcessMemory
PID:3008
- 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\DiffuseBlack2.dds
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2908
- - 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\DiffuseBlack2.dds"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1364

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

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

Filesize
3KB

MD5
6ae8539602f8a12e0e1997ffd9bb6d3e

SHA1
fa9413175f51a3188f697673abb769619de718bc

SHA256
d76a2be6a9fef122a32bd38a650388dea1fdf1b3b8b5234f96918e29a84538f1

SHA512
935b5ff6e2adbd75f86bc3080c1d0193ef2322e261a7db00ed99f8447c47ac1c01fad90e066344068db84a666dafa42eb57bac7d3866d9dabfec337f6d533efb

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