Overview
overview
10Static
static
10Install de...es.bat
windows11-21h2-x64
1Microsoft....re.dll
windows11-21h2-x64
1Microsoft....ms.dll
windows11-21h2-x64
1Microsoft....pf.dll
windows11-21h2-x64
1Newtonsoft.Json.dll
windows11-21h2-x64
1SKullUI.exe
windows11-21h2-x64
1libcrypto-3-x64.dll
windows11-21h2-x64
1libssl-3-x64.dll
windows11-21h2-x64
1skull.dll
windows11-21h2-x64
1skull.exe
windows11-21h2-x64
10Analysis
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max time kernel
426s -
max time network
463s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/02/2025, 08:48
Behavioral task
behavioral1
Sample
Install dependencies.bat
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
Microsoft.Web.WebView2.Core.dll
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
Microsoft.Web.WebView2.WinForms.dll
Resource
win11-20241007-en
Behavioral task
behavioral4
Sample
Microsoft.Web.WebView2.Wpf.dll
Resource
win11-20241023-en
Behavioral task
behavioral5
Sample
Newtonsoft.Json.dll
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
SKullUI.exe
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
libcrypto-3-x64.dll
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
libssl-3-x64.dll
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
skull.dll
Resource
win11-20241007-en
Behavioral task
behavioral10
Sample
skull.exe
Resource
win11-20241007-en
General
-
Target
Install dependencies.bat
-
Size
1KB
-
MD5
eb4b04fbf3be04946d84a01ede5cbe9a
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SHA1
c03837830a409c2ef177925bd3e4ec9544cc5031
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SHA256
f545d644196419b41eadae3f0846888c396284cc148c780916c0d96a07f71b40
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SHA512
42dae275458e8f23383285087cda5dad95bfee58bdb86dc1b6c07373296e35f99fd3c249fe022a5bbd3e9b0a465b6231922267fb330d6b5febeb7a731d320749
Malware Config
Signatures
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Runs net.exe
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Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2764 wrote to memory of 2876 2764 cmd.exe 78 PID 2764 wrote to memory of 2876 2764 cmd.exe 78 PID 2876 wrote to memory of 3676 2876 net.exe 79 PID 2876 wrote to memory of 3676 2876 net.exe 79 PID 2764 wrote to memory of 4736 2764 cmd.exe 80 PID 2764 wrote to memory of 4736 2764 cmd.exe 80 PID 2764 wrote to memory of 2940 2764 cmd.exe 81 PID 2764 wrote to memory of 2940 2764 cmd.exe 81
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Install dependencies.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\system32\net.exenet session2⤵
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 session3⤵PID:3676
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-
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C:\Windows\system32\reg.exereg query "HKLM\SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64"2⤵PID:4736
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C:\Program Files\dotnet\dotnet.exedotnet --list-sdks2⤵PID:2940
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