Analysis
- max time kernel
145s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
14/11/2024, 01:58
Static task
static1
Behavioral task
behavioral1
Sample
544e3a275c258b90d8cda8be36b057e75451b4901d4663082db9f97419cd5a4a.xls
Resource
win7-20240903-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
544e3a275c258b90d8cda8be36b057e75451b4901d4663082db9f97419cd5a4a.xls
Resource
win10v2004-20241007-en
9 signatures
150 seconds
General
- Target 544e3a275c258b90d8cda8be36b057e75451b4901d4663082db9f97419cd5a4a.xls
- Size 1.1MB
- Sample241114-ceb1saskgv
- SHA256 544e3a275c258b90d8cda8be36b057e75451b4901d4663082db9f97419cd5a4a
- MD5 f8136a20dbec93a03aaebaf7d36ff199
- SHA1 be5e9c920b7e3c61b0b7779c6de6bc28d9aab2d3
- SHA512 f2d85f7ddcda4704ca2b057f94386772f4951b0e9b7fe015d9ee39d017267007080dc1f95857182045438f7fc7dac16098e6710611f3c409921b186c3200446c
- SSDEEP 24576:aq9PLiijE2Z5Z2am82/gY/tMJE8F84LJQodsG4HD+zBVc:aEPLiij7Z5ZK8Qg8tMpFjLJQod94SP
- MD5 SHA1 SHA512 SSDEEP
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 4192 4808 mshta.exe 82 - 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4808 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE 4808 EXCEL.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4808 wrote to memory of 4192 4808 EXCEL.EXE 87 PID 4808 wrote to memory of 4192 4808 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.
- 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\544e3a275c258b90d8cda8be36b057e75451b4901d4663082db9f97419cd5a4a.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4808 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:4192
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
- Size 1KB
- SHA256 a66c800e76372ee169468a5794064a9249554ca721f5e88723f4444f003568fd
- MD5 9056d632bc247d00191d7d1218f28c4a
- SHA1 0e5e49802533f1c8c57194b29d6755258ba04fef
- SHA512 42b0941b6d9574bd8fcf8a5ee8e6b97446d12bf41af22ac6cf6a65c6196383c5b2705eee13ec07b585cd96252d296fa2e7dcead54a6618458849b5278dd8c19f
- MD5 SHA1 SHA512