8f75e0958f99e96dc69b2e13d5a51b1faf03fb3224d8ab072997e3007c9940c3

Analysis

max time kernel
150s
max time network
35s
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/DiffuseBlack3.dds
Size

176B
MD5

c819a339d71772207c49e3bba9b8a7de
SHA1

684b607f495df54392b1ed37378da4e6c3ac2c3d
SHA256

79caeee34bf288419b7222ba7a4970e4d73b9eb89fd1d8ac603edef0aeaf276e
SHA512

e87ccc9c8d6b2c8d6211024296110c1a76b8a85b7bbefed1c1af0b597c33d291cea1427b2bff4056cf9e0b00a1428080b1ad82fedc70d1b82772dca174044d0e

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-1-5-21-2859459355-424593036-1984306042-1000_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-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\dds_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\dds_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\.dds\ = "dds_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\dds_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\.dds	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\dds_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\dds_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1136	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1136	AcroRd32.exe
1136	AcroRd32.exe
1136	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 608 wrote to memory of 2160	608	cmd.exe	28
PID 608 wrote to memory of 2160	608	cmd.exe	28
PID 608 wrote to memory of 2160	608	cmd.exe	28
PID 2160 wrote to memory of 1136	2160	rundll32.exe	29
PID 2160 wrote to memory of 1136	2160	rundll32.exe	29
PID 2160 wrote to memory of 1136	2160	rundll32.exe	29
PID 2160 wrote to memory of 1136	2160	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\DiffuseBlack3.dds
1⤵
- Suspicious use of WriteProcessMemory
PID:608
- 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\DiffuseBlack3.dds
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2160
- - 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\DiffuseBlack3.dds"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1136

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

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Downloads

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

Filesize
3KB

MD5
9673f5c3deca169f480ff50ab2891afd

SHA1
9c2d01cdf69952300948da6d3682bb8c47663ccb

SHA256
c93ea9aab2a196e7366f7f24d586fb0e498a1415eff9126628f8ea04c7cdcec1

SHA512
cadd47b39241e38dd61501b54dd92f35e99269b452bb1b4ff4ddfe2dcb05ae50a8cef345bd5936f2401cb6b1e9ca9889b94bfcd0b3953faa204ec06e55a39707

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