Analysis
- user interaction
yes - max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/08/2026, 16:25
Static task
static1
Behavioral task
behavioral1
Sample
comprobante09.xls
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
comprobante09.xls
Resource
win11ltsc2024-20260709-en
9 signatures
150 seconds
General
- Target comprobante09.xls
- Size 28KB
- Sample260811-tw392atth1
- SHA256 6ce0dd3dfb8894499ab1835ed5df8bb7942702d67ab792e0b85ef3d0b0e667d4
- MD5 217e7901d160a7389fd3cba5e0cebd1e
- SHA1 4f84af293a8b01ae6a900dc282e97b8a5b43feb1
- SHA512 8bcd0678b7dfdc0ce7f38b164b4ece0e41b781d92522444b754a995c43b5416091adf19ffaff5a20be5a176386a297e805746cb3eccee7da45b3f6f2a99ca6c5
- SSDEEP 768:m1sbS/mi6ztROgIe95CypdT4nKqfQmjeB:IAiEpQgIs55wnUmje
- TLSH T1ADD28C1173A5C15AE446CAB68EE5E1CB1A21BC52ED0B8A0B37C5770F1D789E1C523F2B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- 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 636 540 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 540 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 540 wrote to memory of 636 540 EXCEL.EXE 88 - 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.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\comprobante09.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:636
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
- Size 1KB
- SHA256 e9de3cc5450d2c00e5e87805ed5de2f59d964540d9c379d0e8acc52c96c608e0
- MD5 7b4f703c916ffaaa536bbcfffed04e2e
- SHA1 287ea2a22a48bd6f0b942083e2f3afae33fa8394
- SHA512 a53c2645ef9dcbd9e25b22ae0678c42475c1cfe1453f631944a7c17939b5b40536a357a61f8e1dd81c40689e2bc1614ee4714eb74193e044c50059a0b5e07900
- TLSH T15241F203AEEB2A5BD024423A6B2AC715D3307C43EF74525F7194751E2EB4504971EF2A
- MD5 SHA1 SHA512 TLSH