Analysis
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max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
27-02-2024 01:23
Behavioral task
behavioral1
Sample
a7dc2a5a6f629576fcff7b9791ff3ee3.xlsm
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a7dc2a5a6f629576fcff7b9791ff3ee3.xlsm
Resource
win10v2004-20240226-en
General
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Target
a7dc2a5a6f629576fcff7b9791ff3ee3.xlsm
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Size
255KB
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MD5
a7dc2a5a6f629576fcff7b9791ff3ee3
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SHA1
6d0a818934d7d5489eaa15b77d79a63fbceb158b
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SHA256
426946d8ed48e925bab206bab04553b9701327f683da4ef385e2c475b377b515
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SHA512
b26de0ebd7bb20b91f91c06420bafb1bb544c6e6ba76b4f989f8052f2387bff68be5f82f4144ff670dc3b31ec74027893aa2c9c3325ab225b57db24a39ae5385
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SSDEEP
6144:StNSLcq+YXEsJup/asVPNdPWokl1DqWjgdFcbHUE:CPYXEsJupCsFdeokX+/dF0HUE
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.
Processes:
MSHTA.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2024 3104 MSHTA.exe EXCEL.EXE -
Blocklisted process makes network request 2 IoCs
Processes:
MSHTA.exeflow pid process 21 2024 MSHTA.exe 22 2024 MSHTA.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEpid process 3104 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 16 IoCs
Processes:
EXCEL.EXEpid process 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3104 wrote to memory of 2024 3104 EXCEL.EXE MSHTA.exe PID 3104 wrote to memory of 2024 3104 EXCEL.EXE MSHTA.exe
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\a7dc2a5a6f629576fcff7b9791ff3ee3.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3104 -
C:\Windows\SYSTEM32\MSHTA.exeMSHTA C:\ProgramData\rsXNAUle.sct2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
PID:2024
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
25KB
MD54453758761ffec13d7397a2337afa0f7
SHA19c640be200413c634845195841bb5aacddc5ae12
SHA25612787b5f4e0bc853f75509661c69abec6bf6fc5f9375b19e2dad4a77174d39a1
SHA512b38cd74a2fe188b9a1fef9fbb3c525af34aae4d72367bf64c9a1e678af4775937f219c829d2e416291dca480610a1e4df498d973f1d10e73dab5c6d311b3ffc7