Analysis
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max time kernel
141s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
21-04-2024 03:32
Static task
static1
Behavioral task
behavioral1
Sample
fe5387dfb6adce9747731fc97c160aee_JaffaCakes118.doc
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
fe5387dfb6adce9747731fc97c160aee_JaffaCakes118.doc
Resource
win10v2004-20240412-en
Behavioral task
behavioral3
Sample
decrypted.xlsx
Resource
win7-20240215-en
Behavioral task
behavioral4
Sample
decrypted.xlsx
Resource
win10v2004-20240226-en
General
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Target
decrypted.xlsx
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Size
554KB
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MD5
ce8bc14112fcca50b2414f9d014c2c19
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SHA1
28afbe348f1b2d3a350fa3bfb38bcacf766847b2
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SHA256
4c73a55a72b20560a1376154e2b95895b54cf230d06177068cd30769ae72e019
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SHA512
0e2ec6c831e0ab361aa4da015837c33d2fe94e79c5cb55338f462e64e88320f9876698fd5e02662c45767164d6f838721d6fec458ffb7ff16e842aa26b0ac877
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SSDEEP
12288:nI8raEfAJoa+0zl/YqwbRXbCumVlcDZX96zPEkho/iFi:IuaEIJoa+HnbSE96zPRi
Malware Config
Signatures
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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 3932 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE 3932 EXCEL.EXE -
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\decrypted.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3932
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4036 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:81⤵PID:4980