Overview
overview
10Static
static
10wallpaper_engine.rar
windows7-x64
3wallpaper_engine.rar
windows10-2004-x64
3wallpaper_...fo.xml
windows7-x64
1wallpaper_...fo.xml
windows10-2004-x64
1wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...y.json
windows7-x64
3wallpaper_...y.json
windows10-2004-x64
3wallpaper_...y.frag
windows7-x64
3wallpaper_...y.frag
windows10-2004-x64
3wallpaper_...y.vert
windows7-x64
3wallpaper_...y.vert
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...d.json
windows7-x64
3wallpaper_...d.json
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...t.json
windows7-x64
3wallpaper_...t.json
windows10-2004-x64
3wallpaper_...w.json
windows7-x64
3wallpaper_...w.json
windows10-2004-x64
3wallpaper_...ew.tex
windows7-x64
3wallpaper_...ew.tex
windows10-2004-x64
3wallpaper_...d.json
windows7-x64
3wallpaper_...d.json
windows10-2004-x64
3Analysis
-
max time kernel
179s -
max time network
108s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
18-03-2023 22:57
Behavioral task
behavioral1
Sample
wallpaper_engine.rar
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
wallpaper_engine.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
wallpaper_engine/ChromaAppInfo.xml
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
wallpaper_engine/ChromaAppInfo.xml
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
wallpaper_engine/assets/effects/_empty/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
wallpaper_engine/assets/effects/_empty/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
wallpaper_engine/assets/effects/_empty/materials/effects/empty.json
Resource
win7-20230220-en
Behavioral task
behavioral8
Sample
wallpaper_engine/assets/effects/_empty/materials/effects/empty.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral9
Sample
wallpaper_engine/assets/effects/_empty/shaders/effects/empty.frag
Resource
win7-20230220-en
Behavioral task
behavioral10
Sample
wallpaper_engine/assets/effects/_empty/shaders/effects/empty.frag
Resource
win10v2004-20230220-en
Behavioral task
behavioral11
Sample
wallpaper_engine/assets/effects/_empty/shaders/effects/empty.vert
Resource
win7-20230220-en
Behavioral task
behavioral12
Sample
wallpaper_engine/assets/effects/_empty/shaders/effects/empty.vert
Resource
win10v2004-20230221-en
Behavioral task
behavioral13
Sample
wallpaper_engine/assets/effects/blend/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral14
Sample
wallpaper_engine/assets/effects/blend/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral15
Sample
wallpaper_engine/assets/effects/blend/materials/effects/blend.json
Resource
win7-20230220-en
Behavioral task
behavioral16
Sample
wallpaper_engine/assets/effects/blend/materials/effects/blend.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral17
Sample
wallpaper_engine/assets/effects/blend/preview/effects/blend/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral18
Sample
wallpaper_engine/assets/effects/blend/preview/effects/blend/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral19
Sample
wallpaper_engine/assets/effects/blend/preview/effects/opacity/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral20
Sample
wallpaper_engine/assets/effects/blend/preview/effects/opacity/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral21
Sample
wallpaper_engine/assets/effects/blend/preview/effects/scroll/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral22
Sample
wallpaper_engine/assets/effects/blend/preview/effects/scroll/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral23
Sample
wallpaper_engine/assets/effects/blend/preview/effects/spin/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral24
Sample
wallpaper_engine/assets/effects/blend/preview/effects/spin/effect.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral25
Sample
wallpaper_engine/assets/effects/blend/preview/effects/transform/effect.json
Resource
win7-20230220-en
Behavioral task
behavioral26
Sample
wallpaper_engine/assets/effects/blend/preview/effects/transform/effect.json
Resource
win10v2004-20230221-en
Behavioral task
behavioral27
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effectpreview.json
Resource
win7-20230220-en
Behavioral task
behavioral28
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effectpreview.json
Resource
win10v2004-20230220-en
Behavioral task
behavioral29
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effectpreview.tex
Resource
win7-20230220-en
Behavioral task
behavioral30
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effectpreview.tex
Resource
win10v2004-20230220-en
Behavioral task
behavioral31
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effects/blend.json
Resource
win7-20230220-en
Behavioral task
behavioral32
Sample
wallpaper_engine/assets/effects/blend/preview/materials/effects/blend.json
Resource
win10v2004-20230220-en
General
-
Target
wallpaper_engine/assets/effects/blend/preview/effects/opacity/effect.json
-
Size
356B
-
MD5
ce09fa72dd19a547b6608596f87c576f
-
SHA1
10694ae9ffd1d7815bee57e89d552662e6555bde
-
SHA256
78d929d64f7e86344da8adb13e06d83285060521d8da9059048a4272e32479a2
-
SHA512
de4a92662be3acb52e0eeffe7f4502dc76820210bd001eec21d05a0b8cd04143cf59eca742f1ca896e90db048337db4db777d1a299993fcf4bfae03207d2941f
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies registry class 10 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.json rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.json\ = "json_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 1476 AcroRd32.exe 1476 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 1716 wrote to memory of 1484 1716 cmd.exe rundll32.exe PID 1716 wrote to memory of 1484 1716 cmd.exe rundll32.exe PID 1716 wrote to memory of 1484 1716 cmd.exe rundll32.exe PID 1484 wrote to memory of 1476 1484 rundll32.exe AcroRd32.exe PID 1484 wrote to memory of 1476 1484 rundll32.exe AcroRd32.exe PID 1484 wrote to memory of 1476 1484 rundll32.exe AcroRd32.exe PID 1484 wrote to memory of 1476 1484 rundll32.exe AcroRd32.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\wallpaper_engine\assets\effects\blend\preview\effects\opacity\effect.json1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\wallpaper_engine\assets\effects\blend\preview\effects\opacity\effect.json2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
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\wallpaper_engine\assets\effects\blend\preview\effects\opacity\effect.json"3⤵
- Suspicious use of SetWindowsHookEx