Analysis
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max time kernel
150s -
max time network
278s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
24/02/2025, 16:26
Static task
static1
Behavioral task
behavioral1
Sample
Employee Performance Report.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Employee Performance Report.exe
Resource
win10v2004-20250217-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20241023-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250217-en
General
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Target
$PLUGINSDIR/System.dll
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Size
11KB
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MD5
2ae993a2ffec0c137eb51c8832691bcb
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SHA1
98e0b37b7c14890f8a599f35678af5e9435906e1
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SHA256
681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59
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SHA512
2501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9
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SSDEEP
192:vPtkumJX7zB22kGwfy0mtVgkCPOsE1un:k702k5qpdsEQn
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 1228 5080 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1912 wrote to memory of 5080 1912 rundll32.exe 83 PID 1912 wrote to memory of 5080 1912 rundll32.exe 83 PID 1912 wrote to memory of 5080 1912 rundll32.exe 83
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
PID:1912 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:5080 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 6163⤵
- Program crash
PID:1228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5080 -ip 50801⤵PID:5112