Analysis
- max time kernel
125s - max time network
125s - platform
windows10_x64 - resource
win10v20201028 - submitted
02/12/2020, 14:46
Static task
static1
Behavioral task
behavioral1
Sample
c5a957af29dadb89d9411782ebd512a9.exe
Resource
win7v20201028
0 signatures
0 seconds
General
- Target c5a957af29dadb89d9411782ebd512a9.exe
- Size 666KB
- Sample201202-vt3mrbvnzx
- SHA256 07cf6baf41520d0e97f2010bf76c2ed10509fbf599209ae4bc250eb375515114
- MD5 c5a957af29dadb89d9411782ebd512a9
- SHA1 82fc6778c886eb91538702cc36c5280559f968bc
- SHA512 d5efac4fd11808b4370ebd907eee05ffb66e24c4153ce62432d6f6e4552b6ca27d111f42d1b88fac1c0400b8afbb725fb4a939e9c4f0af335f7b9fa2ce5fa135
- MD5 SHA1 SHA512
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Blacklisted process makes network request 5 IoCs
flow pid Process 36 1504 WScript.exe 38 1504 WScript.exe 40 1504 WScript.exe 42 1504 WScript.exe 43 3956 RUNDLL32.EXE - Executes dropped EXE 7 IoCs
pid Process 3516 File2.exe 3892 lvlar.exe 3840 4pla.exe 1292 startver.exe 2744 SmartClock.exe 1320 CL_Debug_Log.txt 1324 effayof.exe - Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion SmartClock.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion SmartClock.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion lvlar.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion lvlar.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4pla.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4pla.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion startver.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion startver.exe - Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SmartClock.lnk 4pla.exe - Identifies Wine through registry keys 2 TTPs 4 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine lvlar.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine 4pla.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine startver.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine SmartClock.exe - Loads dropped DLL 5 IoCs
pid Process 3516 File2.exe 568 rundll32.exe 568 rundll32.exe 3956 RUNDLL32.EXE 3956 RUNDLL32.EXE - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 22 ip-api.com - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 3892 lvlar.exe 3840 4pla.exe 1292 startver.exe 2744 SmartClock.exe - Drops file in Program Files directory 7 IoCs
description ioc Process File created C:\Program Files (x86)\solfer\startver.exe File2.exe File created C:\Program Files (x86)\solfer\boleroh\msdasc.chm File2.exe File created C:\Program Files (x86)\solfer\boleroh\msorcl32.chm File2.exe File created C:\Program Files (x86)\solfer\boleroh\lvlar.exe File2.exe File created C:\Program Files (x86)\solfer\wiatrace.log File2.exe File created C:\Program Files (x86)\solfer\Microsoft.IdentityServer.Web.Resources.dll File2.exe File created C:\Program Files (x86)\solfer\4pla.exe File2.exe - Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 c5a957af29dadb89d9411782ebd512a9.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString c5a957af29dadb89d9411782ebd512a9.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 lvlar.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString lvlar.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RUNDLL32.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RUNDLL32.EXE - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1336 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 2072 timeout.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings cmd.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 WScript.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 WScript.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2744 SmartClock.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 3892 lvlar.exe 3892 lvlar.exe 3840 4pla.exe 3840 4pla.exe 1292 startver.exe 1292 startver.exe 2744 SmartClock.exe 2744 SmartClock.exe 3480 powershell.exe 3480 powershell.exe 3480 powershell.exe 3956 RUNDLL32.EXE 3956 RUNDLL32.EXE 3176 powershell.exe 3176 powershell.exe 3176 powershell.exe - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeRestorePrivilege 1320 CL_Debug_Log.txt Token: 35 1320 CL_Debug_Log.txt Token: SeSecurityPrivilege 1320 CL_Debug_Log.txt Token: SeSecurityPrivilege 1320 CL_Debug_Log.txt Token: SeDebugPrivilege 568 rundll32.exe Token: SeDebugPrivilege 3956 RUNDLL32.EXE Token: SeDebugPrivilege 3480 powershell.exe Token: SeDebugPrivilege 3176 powershell.exe - Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 2868 c5a957af29dadb89d9411782ebd512a9.exe 2868 c5a957af29dadb89d9411782ebd512a9.exe 1292 startver.exe 1292 startver.exe 1292 startver.exe 3956 RUNDLL32.EXE - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1292 startver.exe 1292 startver.exe 1292 startver.exe - Suspicious use of WriteProcessMemory 63 IoCs
description pid Process procid_target PID 2868 wrote to memory of 3516 2868 c5a957af29dadb89d9411782ebd512a9.exe 78 PID 2868 wrote to memory of 3516 2868 c5a957af29dadb89d9411782ebd512a9.exe 78 PID 2868 wrote to memory of 3516 2868 c5a957af29dadb89d9411782ebd512a9.exe 78 PID 2868 wrote to memory of 1892 2868 c5a957af29dadb89d9411782ebd512a9.exe 79 PID 2868 wrote to memory of 1892 2868 c5a957af29dadb89d9411782ebd512a9.exe 79 PID 2868 wrote to memory of 1892 2868 c5a957af29dadb89d9411782ebd512a9.exe 79 PID 1892 wrote to memory of 2072 1892 cmd.exe 81 PID 1892 wrote to memory of 2072 1892 cmd.exe 81 PID 1892 wrote to memory of 2072 1892 cmd.exe 81 PID 3516 wrote to memory of 3892 3516 File2.exe 82 PID 3516 wrote to memory of 3892 3516 File2.exe 82 PID 3516 wrote to memory of 3892 3516 File2.exe 82 PID 3516 wrote to memory of 3840 3516 File2.exe 83 PID 3516 wrote to memory of 3840 3516 File2.exe 83 PID 3516 wrote to memory of 3840 3516 File2.exe 83 PID 3516 wrote to memory of 1292 3516 File2.exe 84 PID 3516 wrote to memory of 1292 3516 File2.exe 84 PID 3516 wrote to memory of 1292 3516 File2.exe 84 PID 3840 wrote to memory of 2744 3840 4pla.exe 85 PID 3840 wrote to memory of 2744 3840 4pla.exe 85 PID 3840 wrote to memory of 2744 3840 4pla.exe 85 PID 1292 wrote to memory of 1320 1292 startver.exe 86 PID 1292 wrote to memory of 1320 1292 startver.exe 86 PID 1292 wrote to memory of 1320 1292 startver.exe 86 PID 1292 wrote to memory of 784 1292 startver.exe 88 PID 1292 wrote to memory of 784 1292 startver.exe 88 PID 1292 wrote to memory of 784 1292 startver.exe 88 PID 784 wrote to memory of 1336 784 cmd.exe 90 PID 784 wrote to memory of 1336 784 cmd.exe 90 PID 784 wrote to memory of 1336 784 cmd.exe 90 PID 3892 wrote to memory of 1172 3892 lvlar.exe 93 PID 3892 wrote to memory of 1172 3892 lvlar.exe 93 PID 3892 wrote to memory of 1172 3892 lvlar.exe 93 PID 1172 wrote to memory of 1324 1172 cmd.exe 95 PID 1172 wrote to memory of 1324 1172 cmd.exe 95 PID 1172 wrote to memory of 1324 1172 cmd.exe 95 PID 3892 wrote to memory of 3476 3892 lvlar.exe 96 PID 3892 wrote to memory of 3476 3892 lvlar.exe 96 PID 3892 wrote to memory of 3476 3892 lvlar.exe 96 PID 3476 wrote to memory of 1504 3476 cmd.exe 98 PID 3476 wrote to memory of 1504 3476 cmd.exe 98 PID 3476 wrote to memory of 1504 3476 cmd.exe 98 PID 1324 wrote to memory of 568 1324 effayof.exe 99 PID 1324 wrote to memory of 568 1324 effayof.exe 99 PID 1324 wrote to memory of 568 1324 effayof.exe 99 PID 568 wrote to memory of 3956 568 rundll32.exe 100 PID 568 wrote to memory of 3956 568 rundll32.exe 100 PID 568 wrote to memory of 3956 568 rundll32.exe 100 PID 3956 wrote to memory of 3480 3956 RUNDLL32.EXE 101 PID 3956 wrote to memory of 3480 3956 RUNDLL32.EXE 101 PID 3956 wrote to memory of 3480 3956 RUNDLL32.EXE 101 PID 3956 wrote to memory of 3176 3956 RUNDLL32.EXE 104 PID 3956 wrote to memory of 3176 3956 RUNDLL32.EXE 104 PID 3956 wrote to memory of 3176 3956 RUNDLL32.EXE 104 PID 3176 wrote to memory of 2244 3176 powershell.exe 106 PID 3176 wrote to memory of 2244 3176 powershell.exe 106 PID 3176 wrote to memory of 2244 3176 powershell.exe 106 PID 3956 wrote to memory of 2580 3956 RUNDLL32.EXE 107 PID 3956 wrote to memory of 2580 3956 RUNDLL32.EXE 107 PID 3956 wrote to memory of 2580 3956 RUNDLL32.EXE 107 PID 3956 wrote to memory of 3844 3956 RUNDLL32.EXE 109 PID 3956 wrote to memory of 3844 3956 RUNDLL32.EXE 109 PID 3956 wrote to memory of 3844 3956 RUNDLL32.EXE 109
Processes
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C:\Users\Admin\AppData\Local\Temp\c5a957af29dadb89d9411782ebd512a9.exe"C:\Users\Admin\AppData\Local\Temp\c5a957af29dadb89d9411782ebd512a9.exe"1⤵
- Checks processor information in registry
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2868 -
C:\Users\Admin\AppData\Local\Temp\File2.exe"C:\Users\Admin\AppData\Local\Temp\File2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Program Files (x86)\solfer\boleroh\lvlar.exe"C:\Program Files (x86)\solfer\boleroh\lvlar.exe"3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3892 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\effayof.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:1172 -
C:\Users\Admin\AppData\Local\Temp\effayof.exe"C:\Users\Admin\AppData\Local\Temp\effayof.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\EFFAYO~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\effayof.exe6⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:568 -
C:\Windows\SysWOW64\RUNDLL32.EXEC:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\EFFAYO~1.DLL,PxgnfI0g7⤵
- Blacklisted process makes network request
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3956 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmp956B.tmp.ps1"8⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3480
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpB6A1.tmp.ps1"8⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3176 -
C:\Windows\SysWOW64\nslookup.exe"C:\Windows\system32\nslookup.exe" -type=any localhost9⤵PID:2244
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C:\Windows\SysWOW64\schtasks.exeschtasks /End /tn \Microsoft\Windows\Wininet\CacheTask8⤵PID:2580
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C:\Windows\SysWOW64\schtasks.exeschtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask8⤵PID:3844
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\nfaqxdnow.vbs"4⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3476 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\nfaqxdnow.vbs"5⤵
- Blacklisted process makes network request
- Modifies system certificate store
PID:1504
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C:\Program Files (x86)\solfer\4pla.exe"C:\Program Files (x86)\solfer\4pla.exe"3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Drops startup file
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3840 -
C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"4⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:2744
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C:\Program Files (x86)\solfer\startver.exe"C:\Program Files (x86)\solfer\startver.exe"3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1292 -
C:\Users\Admin\AppData\Local\Temp\CL_Debug_Log.txtC:\Users\Admin\AppData\Local\Temp\CL_Debug_Log.txt e -p"JDQJndnqwdnqw2139dn21n3b312idDQDB" "C:\Users\Admin\AppData\Local\Temp\CR_Debug_Log.txt" -o"C:\Users\Admin\AppData\Local\Temp\"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1320
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c schtasks.exe /Create /XML "C:\Users\Admin\AppData\Local\Temp\SystemCheck.xml" /TN "System\SystemCheck"4⤵
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Windows\SysWOW64\schtasks.exeschtasks.exe /Create /XML "C:\Users\Admin\AppData\Local\Temp\SystemCheck.xml" /TN "System\SystemCheck"5⤵
- Creates scheduled task(s)
PID:1336
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\w8qUWnmWI3 & timeout 2 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c5a957af29dadb89d9411782ebd512a9.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1892 -
C:\Windows\SysWOW64\timeout.exetimeout 23⤵
- Delays execution with timeout.exe
PID:2072
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