Analysis
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max time kernel
93s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20250217-en -
resource tags
arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system -
submitted
24/02/2025, 18:05
Static task
static1
Behavioral task
behavioral1
Sample
payment.rar
Resource
win11-20250217-en
Behavioral task
behavioral2
Sample
Invoice Pending Payment.exe
Resource
win11-20250217-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20250217-en
Behavioral task
behavioral4
Sample
Defmrkede/Crossbeam.ps1
Resource
win11-20250217-en
General
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Target
$PLUGINSDIR/nsExec.dll
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Size
6KB
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MD5
51e63a9c5d6d230ef1c421b2eccd45dc
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SHA1
c499cdad5c613d71ed3f7e93360f1bbc5748c45d
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SHA256
cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f
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SHA512
c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522
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SSDEEP
96:W7GUaYNwCLuGFctpiKFlYJ8hH4RVHpwdEeY3kRlDr6dMqqyVgN738:Iygp3FcHi0xhYMR8dMqJVgN
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 484 2948 WerFault.exe 81 -
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 804 wrote to memory of 2948 804 rundll32.exe 81 PID 804 wrote to memory of 2948 804 rundll32.exe 81 PID 804 wrote to memory of 2948 804 rundll32.exe 81
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:804 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2948 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 4723⤵
- Program crash
PID:484
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2948 -ip 29481⤵PID:3548