Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-11-2024 02:42
Static task
static1
Behavioral task
behavioral1
Sample
421895be443167f773741e1681d27ba2052fbef90d4def330cadb3206dbd651c.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
421895be443167f773741e1681d27ba2052fbef90d4def330cadb3206dbd651c.xls
Resource
win10v2004-20241007-en
General
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Target
421895be443167f773741e1681d27ba2052fbef90d4def330cadb3206dbd651c.xls
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Size
937KB
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MD5
b01b76c877321d03dab23c4d1bb26e48
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SHA1
faf698726f93f31fc1fcab31e8942d690220fa10
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SHA256
421895be443167f773741e1681d27ba2052fbef90d4def330cadb3206dbd651c
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SHA512
6756a5eefa442726525208796c7406146407be1a779655a647cdd3caa38a5c761848caf5a978e4cd612713aaef9307221411372859dffa82c860d723b307fc64
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SSDEEP
12288:2UXN9WeWy3aJwF1E3Zjy5dbHsu6KGsW+DYavtKVUgGw6M6ozBdUepzBf88SKe:fusaGF1EpyYu67sdDNVK+f9oTptaK
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\EXCEL.EXE is not expected to spawn this process 1080 1248 mshta.exe 83 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
pid Process 1248 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1248 wrote to memory of 1080 1248 EXCEL.EXE 89 PID 1248 wrote to memory of 1080 1248 EXCEL.EXE 89 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
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\421895be443167f773741e1681d27ba2052fbef90d4def330cadb3206dbd651c.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:1080
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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
Filesize4KB
MD5e5be56b7e18dbed61a41a9025505ad80
SHA1d0f4c4b8947cc9476f05bf8e0b42255bd69d147e
SHA256b995c7b7f997d6c4896673ae804229641dce23aa462ea8e396a5560f609e889f
SHA5127e9ce1eb4138d7080c122c23087ec8e62566eb86af54ea7608d259c2977c32f76922f115eeed4f2557ae8922345ca98d5509efc2817c170347cf156e94c0583f