ec093afe6c253825872e53b051d7a38abfe0b1f737f19a42f83068d196c2c809

Analysis

max time kernel
152s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
12/02/2023, 00:43

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General

Target

textures/brdfLUT.dds
Size

256KB
MD5

63b9e2cffe4c03e83ef952e8a959a8d9
SHA1

baa59e1646e43615f005673c0641e6a0e19d31e8
SHA256

5cc50688061dc9ed221d41591a129e6037db5b7d836532081cdad03a6559d004
SHA512

e03577a61e08be35bf28941b3c44907713dfa28062785a8101ff7b076eabf33c830c231ce7989c04ad1b47377c067b6758640965fbc992390797c1fbeb034eac
SSDEEP

6144:VQHRoQAcZI/n41F5caNm4NSYD6y/XJ70Jm6xo:soQAEI/CmOzshM57Oo

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_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-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\dds_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.dds	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\dds_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\dds_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\dds_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.dds\ = "dds_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\dds_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1764	AcroRd32.exe
1764	AcroRd32.exe
1764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 996	1848	cmd.exe	29
PID 1848 wrote to memory of 996	1848	cmd.exe	29
PID 1848 wrote to memory of 996	1848	cmd.exe	29
PID 996 wrote to memory of 1764	996	rundll32.exe	30
PID 996 wrote to memory of 1764	996	rundll32.exe	30
PID 996 wrote to memory of 1764	996	rundll32.exe	30
PID 996 wrote to memory of 1764	996	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\textures\brdfLUT.dds
1⤵
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\textures\brdfLUT.dds
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:996
- - 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\textures\brdfLUT.dds"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1764

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

memory/1764-82-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download
memory/1848-54-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

Filesize
8KB

Download