Analysis
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max time kernel
143s -
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
29-10-2024 15:32
Static task
static1
Behavioral task
behavioral1
Sample
0001.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
0001.xls
Resource
win10v2004-20241007-en
General
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Target
0001.xls
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Size
1.2MB
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MD5
fb16f7b0fbcb2ae5d3b185392e4543a5
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SHA1
f5e0e6247b2fd7ec74fc687ba0f63d8c05cc3fe0
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SHA256
8f4cb3b0aaf0bdbbcc6d080385fab14ae0cf71d8e46770902ade7f5e4099b5da
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SHA512
f20b0cd4b5030f517997783caa172e5415bfaefd38cf791c983948ae3a20967fe16840e283e6e4833f0d73d0ba7513f49e212f0bd6db7f1d9a1bf8e473668bb5
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SSDEEP
24576:G1852p5l2JsykgMpRptnPskUcZnujf9VYdHk5Xqx5Q:G1O2p5l2oFpB0kUcIf9naT
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 1620 4300 mshta.exe 84 -
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 EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4300 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE 4300 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4300 wrote to memory of 1620 4300 EXCEL.EXE 88 PID 4300 wrote to memory of 1620 4300 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.
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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\0001.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:1620
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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
MD57bf2629e4fdd28ab890911f919ed73b3
SHA1f4181f478d21810908a34ff149d4e88c5afa4a08
SHA25631dabcb4ce18ee036846925e67928b3bf688033017fb0f4ef2d5234d4593731d
SHA512239ef563ae5214082b60f65e14b28fa1e17c186ea09ae1b778cd6c833d98028b488c6ab2ce376c156c207153913b39e4fb9fd1728e695ce82b4261f54f1ba371