Analysis
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max time kernel
150s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
12-06-2023 20:22
Static task
static1
Behavioral task
behavioral1
Sample
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe
Resource
win10v2004-20230221-en
General
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Target
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe
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Size
505KB
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MD5
31fdba408133d245e8761d8960b8e568
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SHA1
cd2cef468d33024c2dea149f50e0faf7b907130d
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SHA256
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d
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SHA512
4b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594
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SSDEEP
6144:sNxbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9F7I:CxQtqB5urTIoYWBQk1E+VF9mOx9q
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
painnerlogger092@gmail.com - Password:
pxfvdhixclsqroly
Signatures
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NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView behavioral2/memory/4676-155-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4676-157-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4676-159-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 7 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView behavioral2/memory/1744-162-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1744-164-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1744-168-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1744-172-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft behavioral2/memory/4676-155-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4676-157-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4676-159-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1744-162-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1744-164-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1744-168-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1744-172-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe -
Executes dropped EXE 1 IoCs
Processes:
Windows Update.exepid process 5072 Windows Update.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Windows Update.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 13 whatismyipaddress.com 15 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Windows Update.exedescription pid process target process PID 5072 set thread context of 4676 5072 Windows Update.exe vbc.exe PID 5072 set thread context of 1744 5072 Windows Update.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Windows Update.exepid process 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe 5072 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Windows Update.exedescription pid process Token: SeDebugPrivilege 5072 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 5072 Windows Update.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exeWindows Update.exedescription pid process target process PID 2364 wrote to memory of 5072 2364 d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe Windows Update.exe PID 2364 wrote to memory of 5072 2364 d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe Windows Update.exe PID 2364 wrote to memory of 5072 2364 d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe Windows Update.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 4676 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe PID 5072 wrote to memory of 1744 5072 Windows Update.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe"C:\Users\Admin\AppData\Local\Temp\d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\SysInfo.txtFilesize
102B
MD53e584bc9e5182d81e22464ca9d69f641
SHA1c8456dea7d64d6edb0e109078ec589bdf5eaaff0
SHA25671d301b79fcbfe0aaa3b5434c6bad96dfcd874b9f943adaf5563b31880548369
SHA5123bfbc10b1c29fbc26af2730b2237aa0257f5221036270dddaf484bca1488bd1f9927bc63bbff4fa813fa866535122cc722a8def2cd561a34bf0f41808d8b75d7
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C:\Users\Admin\AppData\Local\Temp\holderwb.txtFilesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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C:\Users\Admin\AppData\Roaming\Windows Update.exeFilesize
505KB
MD531fdba408133d245e8761d8960b8e568
SHA1cd2cef468d33024c2dea149f50e0faf7b907130d
SHA256d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d
SHA5124b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594
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C:\Users\Admin\AppData\Roaming\Windows Update.exeFilesize
505KB
MD531fdba408133d245e8761d8960b8e568
SHA1cd2cef468d33024c2dea149f50e0faf7b907130d
SHA256d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d
SHA5124b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594
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C:\Users\Admin\AppData\Roaming\Windows Update.exeFilesize
505KB
MD531fdba408133d245e8761d8960b8e568
SHA1cd2cef468d33024c2dea149f50e0faf7b907130d
SHA256d98055b5dedd4f2cf8f5e018af92c2d8230e520bb32fe5119789c1a9db6a4f0d
SHA5124b144469a74903cb0c8af0a52aaedf3e5b6676ef2c036cd74081c75e3e7d7869d0f4bd14c5914caf68ebc088285fdbda2e74571093c646c17d03179a783a8594
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memory/1744-162-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1744-172-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1744-168-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1744-164-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2364-143-0x0000000001130000-0x0000000001140000-memory.dmpFilesize
64KB
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memory/2364-133-0x0000000001130000-0x0000000001140000-memory.dmpFilesize
64KB
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memory/4676-155-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4676-159-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4676-157-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/5072-161-0x00000000013A0000-0x00000000013B0000-memory.dmpFilesize
64KB
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memory/5072-160-0x00000000013A0000-0x00000000013B0000-memory.dmpFilesize
64KB
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memory/5072-149-0x00000000013A0000-0x00000000013B0000-memory.dmpFilesize
64KB
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memory/5072-148-0x00000000013A0000-0x00000000013B0000-memory.dmpFilesize
64KB