Analysis
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max time kernel
143s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31-10-2024 03:55
Static task
static1
Behavioral task
behavioral1
Sample
d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683.xls
Resource
win10v2004-20241007-en
General
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Target
d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683.xls
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Size
476KB
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MD5
28795274503d8d74d85408746a7d1def
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SHA1
151fb154f9c1eb44528b2b221279e1a242f9c4cc
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SHA256
d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683
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SHA512
d34d5c24e0fa7fd7f798b072c24a0fe337ddafd5741e6d59ea784e2b431db0c7512221ad7eedaed0143bc9f5ca8b35b1856dae800cfc8666bf29aea6e026cc8d
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SSDEEP
12288:WPZLLFNkUxNgdoDKeu0VlFjbd/eAm94L8nn:4L/Vxqdoa0V7d/e0
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 3484 1040 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 1040 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1040 wrote to memory of 3484 1040 EXCEL.EXE 87 PID 1040 wrote to memory of 3484 1040 EXCEL.EXE 87 -
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\d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:3484
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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
Filesize3KB
MD52cb1ff32e01beb9ac861bf332bdb831c
SHA13041516d631a50dd5f5fea7c80bdc7561deaf270
SHA2567845e60c2125dde5a868009434f8b3de89fb2a329fd20be1fb09aa882cedbcdc
SHA5129b91f23f445db6decb2c88ec923467d44747205716f7e5af86c401a34c3afd5d5932408a446c2084cef95efdb28d61082153653d6b3567c08fd91d25887789e4