Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
29-04-2024 09:26
Static task
static1
Behavioral task
behavioral1
Sample
Freigabeerklärung.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
Freigabeerklärung.exe
Resource
win10v2004-20240419-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240419-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240419-en
General
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Target
$PLUGINSDIR/System.dll
-
Size
11KB
-
MD5
34442e1e0c2870341df55e1b7b3cccdc
-
SHA1
99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c
-
SHA256
269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1
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SHA512
4a8c57fb12997438b488b862f3fc9dc0f236e07bb47b2bce6053dcb03ac7ad171842f02ac749f02dda4719c681d186330524cd2953d33cb50854844e74b33d51
-
SSDEEP
192:jPtkiQJr7V9r3HcU17S8g1w5xzWxy6j2V7i77blbTc4I:u7VpNo8gmOyRsVc4
Malware Config
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1856 1896 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1896 1640 rundll32.exe rundll32.exe PID 1896 wrote to memory of 1856 1896 rundll32.exe WerFault.exe PID 1896 wrote to memory of 1856 1896 rundll32.exe WerFault.exe PID 1896 wrote to memory of 1856 1896 rundll32.exe WerFault.exe PID 1896 wrote to memory of 1856 1896 rundll32.exe WerFault.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 2203⤵
- Program crash