Analysis
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max time kernel
95s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2024 15:13
Static task
static1
Behavioral task
behavioral1
Sample
678763_PDF.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
678763_PDF.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20241007-en
General
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Target
$PLUGINSDIR/nsExec.dll
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Size
7KB
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MD5
b4579bc396ace8cafd9e825ff63fe244
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SHA1
32a87ed28a510e3b3c06a451d1f3d0ba9faf8d9c
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SHA256
01e72332362345c415a7edcb366d6a1b52be9ac6e946fb9da49785c140ba1a4b
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SHA512
3a76e0e259a0ca12275fed922ce6e01bdfd9e33ba85973e80101b8025ef9243f5e32461a113bbcc6aa75e40894bb5d3a42d6b21045517b6b3cf12d76b4cfa36a
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SSDEEP
96:JwzdzBzMDhOZZDbXf5GsWvSv1ckne94SDbYkvML1HT1fUNQaSGYuH0DQ:JTQHDb2vSuOc41ZfUNQZGdHM
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 3960 4460 WerFault.exe 84 -
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 1384 wrote to memory of 4460 1384 rundll32.exe 84 PID 1384 wrote to memory of 4460 1384 rundll32.exe 84 PID 1384 wrote to memory of 4460 1384 rundll32.exe 84
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:1384 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4460 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 6123⤵
- Program crash
PID:3960
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4460 -ip 44601⤵PID:2664