Analysis
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max time kernel
1480s -
max time network
1506s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-03-2024 11:37
Static task
static1
Behavioral task
behavioral1
Sample
FirefoxPortable_124.0_German.paf.exe
Resource
win11-20240221-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/System.dll
Resource
win11-20240221-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20240221-en
General
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Target
$PLUGINSDIR/nsDialogs.dll
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Size
9KB
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MD5
1d8f01a83ddd259bc339902c1d33c8f1
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SHA1
9f7806af462c94c39e2ec6cc9c7ad05c44eba04e
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SHA256
4b7d17da290f41ebe244827cc295ce7e580da2f7e9f7cc3efc1abc6898e3c9ed
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SHA512
28bf647374b4b500a0f3dbced70c2b256f93940e2b39160512e6e486ac31d1d90945acecef578f61b0a501f27c7106b6ffc3deab2ec3bfb3d9af24c9449a1567
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SSDEEP
96:o4Ev02zUu56FcS817eTaXx85qHFcUcxSgB5PKtAtoniJninnt3DVEB3YsNqkzfFc:o4EvCu5e81785qHFcU0PuAw0uyGIFc
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 1788 4880 WerFault.exe 79 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4668 wrote to memory of 4880 4668 rundll32.exe 79 PID 4668 wrote to memory of 4880 4668 rundll32.exe 79 PID 4668 wrote to memory of 4880 4668 rundll32.exe 79
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#12⤵PID:4880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 5083⤵
- Program crash
PID:1788
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4880 -ip 48801⤵PID:440