Analysis
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max time kernel
148s -
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
20-11-2024 18:55
Behavioral task
behavioral1
Sample
5835437220b1a02397868f2d9df62bb0ee6018d1825f093c58781d2fa8c61989.xls
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
5835437220b1a02397868f2d9df62bb0ee6018d1825f093c58781d2fa8c61989.xls
Resource
win10v2004-20241007-en
General
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Target
5835437220b1a02397868f2d9df62bb0ee6018d1825f093c58781d2fa8c61989.xls
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Size
243KB
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MD5
f4412ea5aed2febf568223d7aab435e2
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SHA1
14ef67b101ccc0f8c45eaf841dce94cf5b2b4f67
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SHA256
5835437220b1a02397868f2d9df62bb0ee6018d1825f093c58781d2fa8c61989
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SHA512
8bc5c8e5f0e2cca54d74ca9e84f36c668ba2d7d097f44a951c285b30dcbe3ea8e8bfacec051d86eb88446820523ac120c9626f30021b3c6801394f24dd186b50
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SSDEEP
6144:DKpbdrHYrMue8q7QPX+5xtFEdi8/dg/ThvsiKIjvl5fd1Xh8rsoX/w/0c:ghEXs5fXR8rsNP
Malware Config
Extracted
http://servidorcarlosydavid.es/wp-admin/jkNPgHxNjF/
https://gmo-sol-p10.heteml.jp/includes/UoJMgYAc1EES/
https://iashanghai.cn/z/Z1PG6ulBh20plss/
https://www.pasionportufuturo.pe/wp-content/HkUfvw0xuCy5/
http://dmdagents.com.au/vqwbgz/CL4Bo4C4VS0deg/
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.
Processes:
regsvr32.exedescription pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2940 4528 regsvr32.exe 82 -
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.
Processes:
regsvr32.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid Process 4528 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid Process 4528 EXCEL.EXE 4528 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid Process 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE 4528 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
EXCEL.EXEdescription pid Process procid_target PID 4528 wrote to memory of 2940 4528 EXCEL.EXE 99 PID 4528 wrote to memory of 2940 4528 EXCEL.EXE 99 PID 4528 wrote to memory of 2940 4528 EXCEL.EXE 99
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\5835437220b1a02397868f2d9df62bb0ee6018d1825f093c58781d2fa8c61989.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe /s ..\xxw1.ocx2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:2940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize1KB
MD5b37a4d527d3256d0db6ea47da9de40e0
SHA17629b29f31f0a4383da8074a0ef050724195248a
SHA25651284f4dba9a0d0adebd3dddf181c5e7007b75903a339420c6e0b9fcdbb97e1b
SHA512685ed9013a6e380b8d5e71a45e5a6ff41fcd7557b61d4939468118f4bae8bf72bc429e60d87226b613777f9afc56739d14a51d168c4d9cf8e49f4b22a7ea0424
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Filesize
45KB
MD50cfe08d0b76f6c16d79dffcb527d94bb
SHA160d63b9a567e6d1df9b0527ae21b1cd4c767bd8b
SHA256f3a99f22b32ae07964ad6e46f8ccd537f654da7eaa70ebe162efc85cfc1a332d
SHA51203852181f0944ba7a8fd67b9aa8ef1cb1d947be6f5b774eac2d8a5efaa689a1229918eaa9ae9d9384dfaa40b85c1a1a5d3ee036aec5e41f11012b16d33bb48cb