Analysis
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max time kernel
145s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-10-2024 14:07
Static task
static1
Behavioral task
behavioral1
Sample
HEINRICHAG.xls
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
HEINRICHAG.xls
Resource
win10v2004-20241007-en
General
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Target
HEINRICHAG.xls
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Size
848KB
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MD5
5a232e6f517ecc2663439fcf2a28573d
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SHA1
155a24515072423a751465a774fc6e3e24e21f84
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SHA256
4af00aaa090c79876c7d3c1c337cdb5244f0b05689de4e22b7ed4a84bb8eb9d8
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SHA512
a96e1d03f6155e30e236d4234c0c352911d3780cd59493ea8545296dc8b42c2befed3972adfbf0001df24023e522547d00bb2de68c27d729cf689487ad5b4f49
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SSDEEP
12288:YmzHJE+CzldQD3DERnLRmF8D5JhuiC3LaQlOh4cjUVwUi4t7W:zczlWbARM8NTC3eQ0h4eU
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 1496 4940 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\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 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 4940 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4940 EXCEL.EXE 4940 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE 4940 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4940 wrote to memory of 1496 4940 EXCEL.EXE 90 PID 4940 wrote to memory of 1496 4940 EXCEL.EXE 90 -
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\HEINRICHAG.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
PID:1496
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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
Filesize2KB
MD5ec70b5d856f46cb832399f090d6da53d
SHA11062b759647e002db5a2e7f9bb24412b1c9df040
SHA25631591c20958d07fdef383185013819e966b33069ee2f7891f8db3f036b388234
SHA51272eb3924e4ad8142f04af60f1e69e48e04a2edb6619cd96411f85cac921fce5e5b11efffe473ab00f44647f7586814830d64c8c73e691f9a72e34ddda41580e0