Analysis
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max time kernel
147s -
max time network
142s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
26/04/2021, 16:03
Static task
static1
Behavioral task
behavioral1
Sample
C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe
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Size
13.6MB
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MD5
516fa42131ea944681b66d6373769edf
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SHA1
040837f030572bbad6ee8086ce0d5c94a14bcfd4
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SHA256
c8ebec4136a41a11aa96976ce1b5d4b01785ff3ac94b781550cc2e11984c7a2c
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SHA512
527497acecbbd0aee3be9c4428305e711871ad5c1d7839fa54a4bbc84c7c555e616d4d0850a53e3ef0bb5398aaf7b866904cb33a8ed9fc0151cfc6bcd4284c13
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 3296 created 2400 3296 svchost.exe 77 -
Executes dropped EXE 4 IoCs
pid Process 1932 rfusclient.exe 2400 rutserv.exe 3304 rutserv.exe 2076 rfusclient.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation rutserv.exe Key value queried \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation rfusclient.exe Key value queried \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation rfusclient.exe -
Loads dropped DLL 4 IoCs
pid Process 2400 rutserv.exe 2400 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe -
Drops file in System32 directory 14 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\DA3B6E45325D5FFF28CF6BAD6065C907_BDC92AC5EF2F5AEC292F01D60DDFDA90 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C86BD7751D53F10F65AAAD66BBDF33C7 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8890A77645B73478F5B1DED18ACBF795_C090A8C88B266C6FF99A97210E92B44D rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C86BD7751D53F10F65AAAD66BBDF33C7 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\DA3B6E45325D5FFF28CF6BAD6065C907_BDC92AC5EF2F5AEC292F01D60DDFDA90 rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8890A77645B73478F5B1DED18ACBF795_C090A8C88B266C6FF99A97210E92B44D rutserv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 rutserv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 45 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\OnDemandInterfaceCache rutserv.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\16\52C64B7E\@C:\Windows\SysWOW64\FirewallControlPanel.dll,-12122 = "Windows Firewall" rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates rutserv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\16\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs rutserv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople rutserv.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43 rutserv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 rutserv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 rutserv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 rutserv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 rutserv.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2400 rutserv.exe Token: SeTcbPrivilege 3296 svchost.exe Token: SeTcbPrivilege 3296 svchost.exe Token: SeTakeOwnershipPrivilege 3304 rutserv.exe Token: SeTcbPrivilege 3304 rutserv.exe Token: SeTcbPrivilege 3304 rutserv.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2076 rfusclient.exe 2076 rfusclient.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 2076 rfusclient.exe 2076 rfusclient.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 2400 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe 3304 rutserv.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 512 wrote to memory of 1932 512 C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe 76 PID 512 wrote to memory of 1932 512 C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe 76 PID 512 wrote to memory of 1932 512 C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe 76 PID 1932 wrote to memory of 2400 1932 rfusclient.exe 77 PID 1932 wrote to memory of 2400 1932 rfusclient.exe 77 PID 1932 wrote to memory of 2400 1932 rfusclient.exe 77 PID 3296 wrote to memory of 3304 3296 svchost.exe 80 PID 3296 wrote to memory of 3304 3296 svchost.exe 80 PID 3296 wrote to memory of 3304 3296 svchost.exe 80 PID 3304 wrote to memory of 2076 3304 rutserv.exe 83 PID 3304 wrote to memory of 2076 3304 rutserv.exe 83 PID 3304 wrote to memory of 2076 3304 rutserv.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe"C:\Users\Admin\AppData\Local\Temp\C8EBEC4136A41A11AA96976CE1B5D4B01785FF3AC94B7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:512 -
C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rfusclient.exe"C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rfusclient.exe" -run_agent2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rutserv.exe"C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rutserv.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2400 -
C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rutserv.exe"C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rutserv.exe" -second4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3304 -
C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rfusclient.exe"C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\69110\540A9EF2FD\rfusclient.exe" /tray /user5⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2076
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3296