Analysis
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max time kernel
143s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250313-en -
resource tags
arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2025, 16:24
Behavioral task
behavioral1
Sample
2fbff281b9d4d240ef5a800c08cf26d4d4944e73227860a7c4afeb3b11615238.doc
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2fbff281b9d4d240ef5a800c08cf26d4d4944e73227860a7c4afeb3b11615238.doc
Resource
win10v2004-20250313-en
General
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Target
2fbff281b9d4d240ef5a800c08cf26d4d4944e73227860a7c4afeb3b11615238.doc
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Size
543KB
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MD5
14450c99698f1725a1933879d104c404
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SHA1
5fa27c4c455d168bf0efced37869b8f840d3dc4d
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SHA256
2fbff281b9d4d240ef5a800c08cf26d4d4944e73227860a7c4afeb3b11615238
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SHA512
b9b4d4b565a0a48978e88b4bd947ae35ec9172bddae2dfcb5e432ce17a4b4c353b4a2de177b317fdf51ef418c2f24b3a2b5a746390cac3b5e845383584ddbd3f
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SSDEEP
12288:auE0gXPByytkPiieVC2P3Bd1pJhw5EHkf13VbIkqC0J:au3gXPQ2kiie/3BJwskt3VbnqC
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 3516 5908 rundll32.exe 84 -
Blocklisted process makes network request 1 IoCs
flow pid Process 67 4608 rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 4608 rundll32.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 66 api.ipify.org -
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 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
NTFS ADS 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\{936445B8-8021-4C0F-806C-59C2E048BDE6}\ya.wav:Zone.Identifier WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 5908 WINWORD.EXE 5908 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4608 rundll32.exe 4608 rundll32.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 5908 WINWORD.EXE 5908 WINWORD.EXE 5908 WINWORD.EXE 5908 WINWORD.EXE 5908 WINWORD.EXE 5908 WINWORD.EXE 5908 WINWORD.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 5908 wrote to memory of 4816 5908 WINWORD.EXE 89 PID 5908 wrote to memory of 4816 5908 WINWORD.EXE 89 PID 5908 wrote to memory of 3516 5908 WINWORD.EXE 91 PID 5908 wrote to memory of 3516 5908 WINWORD.EXE 91 PID 3516 wrote to memory of 4608 3516 rundll32.exe 92 PID 3516 wrote to memory of 4608 3516 rundll32.exe 92 PID 3516 wrote to memory of 4608 3516 rundll32.exe 92
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2fbff281b9d4d240ef5a800c08cf26d4d4944e73227860a7c4afeb3b11615238.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5908 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:4816
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll,DllUnregisterServer2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll,DllUnregisterServer3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4608
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
262KB
MD551d32ee5bc7ab811041f799652d26e04
SHA1412193006aa3ef19e0a57e16acf86b830993024a
SHA2566230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
SHA5125fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810
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Filesize
369KB
MD5f8a02665a416f335a420e9033cdbb08f
SHA1817f8057f4a87614b6d2ed409bb752544c6c5bf2
SHA256ec1fda96044f67abf36e7d3ddbf9fdb06b9fba9c7d29761487221568746dd05b
SHA512894d714a356231ded8eaa029bad5836bc50665642ca2c110a04f9aa3548a854689d16dcaa222b764d943d9141e2c297c821df4dadcc5a70ac291616ec2a066f5
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Filesize
16B
MD5d29962abc88624befc0135579ae485ec
SHA1e40a6458296ec6a2427bcb280572d023a9862b31
SHA256a91a702aab9b8dd722843d3d208a21bcfa6556dfc64e2ded63975de4511eb866
SHA5124311e87d8d5559248d4174908817a4ddc917bf7378114435cf12da8ccb7a1542c851812afbaf7dc106771bdb2e2d05f52e7d0c50d110fc7fffe4395592492c2f
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
Filesize1KB
MD58222a68e12444c3bd180920b8d50b53d
SHA146d852b42062e9259d84737fc283f167a62548e4
SHA25625ac1cfd1ab4ed9a40d6976383aef10cead969396528d0cb54b0b625b31c28e9
SHA5124fd8eb40f7e67d19e971a4187fc5faae3607f7be870c2cd1b63ed6bd7471176f737591341b6f06a0734bcc3cd2472ec8f332f4a6bec955201e4c696fee9397c9