Analysis
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max time kernel
102s -
max time network
110s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 20:25
Static task
static1
Behavioral task
behavioral1
Sample
PI 4717_PDF.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
PI 4717_PDF.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/yeorkzn.dll
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/yeorkzn.dll
Resource
win10v2004-20241007-en
General
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Target
PI 4717_PDF.exe
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Size
306KB
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MD5
c14625cddc83ab7cc4d5bf559bb0b519
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SHA1
75d857ed93cb4c5ba2e2ec6c546e49c1695aac2a
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SHA256
acbc73c81f446276bb0110ac2a5d902d928556adcac4ed41fecff6671c818bfa
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SHA512
faa37131339a22782b4c5023c70d506dc8be0d19f44a1a33380c06670e5d15c93defa94254a2e7a7ca9e62d2693950cde4a3226ebd22b9ed757552618ef7250f
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SSDEEP
6144:rGi1YPNjmC4errA4LgFYRBvtCJ+DJgfRheS6tD4glttwcTTaTvzsErsZNC3azW:JOrrnLgFaBvtCZfRMTLaT76qH
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3820 PI 4717_PDF.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3328 3820 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 PI 4717_PDF.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3820 wrote to memory of 3120 3820 PI 4717_PDF.exe 82 PID 3820 wrote to memory of 3120 3820 PI 4717_PDF.exe 82 PID 3820 wrote to memory of 3120 3820 PI 4717_PDF.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3820 -
C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"2⤵PID:3120
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 9482⤵
- Program crash
PID:3328
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3820 -ip 38201⤵PID:3496
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
134KB
MD5de4cd82a7d5710c0920e65426ca69cdc
SHA1f6f2644a63dfaca5e87d72f9b5bbabb88ac4b716
SHA2567f9b3f353d52281a4c811baf32c963950139aaac91c34dd02da510eb8fcdf330
SHA512e4b8941eaaf2d4260fc3ea7aa84196d473b6e6ebff3e253bfe1c899f3f97803d98554abf52af85c84a6278e58f06573726a0f80ede272dd6eb38c8de4bee1bbf