Analysis
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max time kernel
149s -
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
19-03-2024 00:44
Behavioral task
behavioral1
Sample
d4c7e0f06a9b75f6e35287f34b914a58.xls
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
d4c7e0f06a9b75f6e35287f34b914a58.xls
Resource
win10v2004-20240226-en
General
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Target
d4c7e0f06a9b75f6e35287f34b914a58.xls
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Size
36KB
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MD5
d4c7e0f06a9b75f6e35287f34b914a58
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SHA1
e079ad6634ea9787698bbdf8c14257c87f9edc69
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SHA256
335ade9fc7fc962cd026795de6dcfba8defbbcb198db954dc1aeb8051bca8d6f
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SHA512
47b805e51bf7c8cb828bdca733c3f2e4fb8989a38d928933627e6e33c6d5d18c0537d4e4fa8ec96b57ed10e41bcff6d288cabf95d1e7fa6cfa08addf102dd998
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SSDEEP
768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJLS2GOK/90jIhpEVq7:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nf
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 5072 3224 explorer.exe 86 -
Blocklisted process makes network request 2 IoCs
flow pid Process 22 4276 WScript.exe 52 4276 WScript.exe -
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 -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3224 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3224 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3224 EXCEL.EXE 3224 EXCEL.EXE 3224 EXCEL.EXE 3224 EXCEL.EXE 3224 EXCEL.EXE 3224 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3224 wrote to memory of 5072 3224 EXCEL.EXE 91 PID 3224 wrote to memory of 5072 3224 EXCEL.EXE 91 PID 1312 wrote to memory of 4276 1312 explorer.exe 93 PID 1312 wrote to memory of 4276 1312 explorer.exe 93
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\d4c7e0f06a9b75f6e35287f34b914a58.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:3224 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\HBRJ.vbs2⤵
- Process spawned unexpected child process
PID:5072
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\HBRJ.vbs"2⤵
- Blocklisted process makes network request
PID:4276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
562B
MD5dda3f8bfe3a08f0864f93eec632c8538
SHA1780f87bb1f96f123387d74e80aca541d1eaeebe9
SHA256fc567217c4c737bab018ee540e0466e23f5b07c62ad7e07ae1d479850970354d
SHA512bced6b8eeacbe4932ef0bbb21e6b72c2a7e377bdb16ab9d07ddf908fe777c44cded24a9247dea4ccb52f35791db18e2dcf441d8e03162d204875658248caa431