Analysis
- max time kernel
137s - max time network
126s - platform
windows10_x64 - resource
win10v20201028 - submitted
11/01/2021, 07:47
Static task
static1
Behavioral task
behavioral1
Sample
ab3580b5eb547523abf3c29133504c64.exe
Resource
win7v20201028
0 signatures
0 seconds
General
- Target ab3580b5eb547523abf3c29133504c64.exe
- Size 5.3MB
- Sample210111-ejedv476k6
- SHA256 1ba569c631438a0fb356441838ff328835d607e7cdb217cc444923c1ec58337b
- MD5 ab3580b5eb547523abf3c29133504c64
- SHA1 8f3d44bb3a48a76be53b8e6d227b5dda432ed5b5
- SHA512 5a3c89cd5f73ae2d2330cc362d58556280b2ca5196aa1643982c3622936c024088ed3cbc72f5489fe2c326495b82cb69cbeacb81d112ca9fdf0af183c95b5ff4
- MD5 SHA1 SHA512
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Blocklisted process makes network request 7 IoCs
flow pid Process 24 4328 RUNDLL32.EXE 30 4524 WScript.exe 32 4524 WScript.exe 34 4524 WScript.exe 36 4524 WScript.exe 37 4328 RUNDLL32.EXE 38 4328 RUNDLL32.EXE - Executes dropped EXE 5 IoCs
pid Process 3020 4_ico.exe 3748 6_ico.exe 2912 vpn_ico.exe 3560 SmartClock.exe 3536 dunijgijkc.exe -
resource yara_rule behavioral2/files/0x0002000000015667-27.dat upx behavioral2/files/0x0002000000015667-26.dat upx - 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 vpn_ico.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion vpn_ico.exe 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 6_ico.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 6_ico.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4_ico.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4_ico.exe - Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SmartClock.lnk 4_ico.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 6_ico.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine 4_ico.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine vpn_ico.exe Key opened \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Wine SmartClock.exe - Loads dropped DLL 4 IoCs
pid Process 1052 ab3580b5eb547523abf3c29133504c64.exe 4184 rundll32.exe 4184 rundll32.exe 4328 RUNDLL32.EXE - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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 8 ip-api.com - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 3020 4_ico.exe 3748 6_ico.exe 2912 vpn_ico.exe 3560 SmartClock.exe - Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vpn_ico.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString vpn_ico.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 - Delays execution with timeout.exe 2 IoCs
pid Process 4144 timeout.exe 1528 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 vpn_ico.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 3560 SmartClock.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 3748 6_ico.exe 3748 6_ico.exe 3020 4_ico.exe 3020 4_ico.exe 2912 vpn_ico.exe 2912 vpn_ico.exe 3560 SmartClock.exe 3560 SmartClock.exe 4640 powershell.exe 4640 powershell.exe 4640 powershell.exe 4328 RUNDLL32.EXE 4328 RUNDLL32.EXE 4924 powershell.exe 4924 powershell.exe 4924 powershell.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4184 rundll32.exe Token: SeDebugPrivilege 4328 RUNDLL32.EXE Token: SeDebugPrivilege 4640 powershell.exe Token: SeDebugPrivilege 4924 powershell.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4328 RUNDLL32.EXE - Suspicious use of WriteProcessMemory 54 IoCs
description pid Process procid_target PID 1052 wrote to memory of 3020 1052 ab3580b5eb547523abf3c29133504c64.exe 76 PID 1052 wrote to memory of 3020 1052 ab3580b5eb547523abf3c29133504c64.exe 76 PID 1052 wrote to memory of 3020 1052 ab3580b5eb547523abf3c29133504c64.exe 76 PID 1052 wrote to memory of 3748 1052 ab3580b5eb547523abf3c29133504c64.exe 77 PID 1052 wrote to memory of 3748 1052 ab3580b5eb547523abf3c29133504c64.exe 77 PID 1052 wrote to memory of 3748 1052 ab3580b5eb547523abf3c29133504c64.exe 77 PID 1052 wrote to memory of 2912 1052 ab3580b5eb547523abf3c29133504c64.exe 78 PID 1052 wrote to memory of 2912 1052 ab3580b5eb547523abf3c29133504c64.exe 78 PID 1052 wrote to memory of 2912 1052 ab3580b5eb547523abf3c29133504c64.exe 78 PID 3020 wrote to memory of 3560 3020 4_ico.exe 79 PID 3020 wrote to memory of 3560 3020 4_ico.exe 79 PID 3020 wrote to memory of 3560 3020 4_ico.exe 79 PID 2912 wrote to memory of 3536 2912 vpn_ico.exe 80 PID 2912 wrote to memory of 3536 2912 vpn_ico.exe 80 PID 2912 wrote to memory of 3536 2912 vpn_ico.exe 80 PID 2912 wrote to memory of 2040 2912 vpn_ico.exe 81 PID 2912 wrote to memory of 2040 2912 vpn_ico.exe 81 PID 2912 wrote to memory of 2040 2912 vpn_ico.exe 81 PID 3748 wrote to memory of 720 3748 6_ico.exe 82 PID 3748 wrote to memory of 720 3748 6_ico.exe 82 PID 3748 wrote to memory of 720 3748 6_ico.exe 82 PID 720 wrote to memory of 1528 720 cmd.exe 84 PID 720 wrote to memory of 1528 720 cmd.exe 84 PID 720 wrote to memory of 1528 720 cmd.exe 84 PID 3748 wrote to memory of 4100 3748 6_ico.exe 85 PID 3748 wrote to memory of 4100 3748 6_ico.exe 85 PID 3748 wrote to memory of 4100 3748 6_ico.exe 85 PID 4100 wrote to memory of 4144 4100 cmd.exe 87 PID 4100 wrote to memory of 4144 4100 cmd.exe 87 PID 4100 wrote to memory of 4144 4100 cmd.exe 87 PID 3536 wrote to memory of 4184 3536 dunijgijkc.exe 89 PID 3536 wrote to memory of 4184 3536 dunijgijkc.exe 89 PID 3536 wrote to memory of 4184 3536 dunijgijkc.exe 89 PID 4184 wrote to memory of 4328 4184 rundll32.exe 92 PID 4184 wrote to memory of 4328 4184 rundll32.exe 92 PID 4184 wrote to memory of 4328 4184 rundll32.exe 92 PID 2912 wrote to memory of 4524 2912 vpn_ico.exe 94 PID 2912 wrote to memory of 4524 2912 vpn_ico.exe 94 PID 2912 wrote to memory of 4524 2912 vpn_ico.exe 94 PID 4328 wrote to memory of 4640 4328 RUNDLL32.EXE 95 PID 4328 wrote to memory of 4640 4328 RUNDLL32.EXE 95 PID 4328 wrote to memory of 4640 4328 RUNDLL32.EXE 95 PID 4328 wrote to memory of 4924 4328 RUNDLL32.EXE 98 PID 4328 wrote to memory of 4924 4328 RUNDLL32.EXE 98 PID 4328 wrote to memory of 4924 4328 RUNDLL32.EXE 98 PID 4924 wrote to memory of 5096 4924 powershell.exe 100 PID 4924 wrote to memory of 5096 4924 powershell.exe 100 PID 4924 wrote to memory of 5096 4924 powershell.exe 100 PID 4328 wrote to memory of 1008 4328 RUNDLL32.EXE 101 PID 4328 wrote to memory of 1008 4328 RUNDLL32.EXE 101 PID 4328 wrote to memory of 1008 4328 RUNDLL32.EXE 101 PID 4328 wrote to memory of 196 4328 RUNDLL32.EXE 103 PID 4328 wrote to memory of 196 4328 RUNDLL32.EXE 103 PID 4328 wrote to memory of 196 4328 RUNDLL32.EXE 103
Processes
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C:\Users\Admin\AppData\Local\Temp\ab3580b5eb547523abf3c29133504c64.exe"C:\Users\Admin\AppData\Local\Temp\ab3580b5eb547523abf3c29133504c64.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Users\Admin\AppData\Local\Temp\New Feature\4_ico.exe"C:\Users\Admin\AppData\Local\Temp\New Feature\4_ico.exe"2⤵
- 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:3020 -
C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:3560
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C:\Users\Admin\AppData\Local\Temp\New Feature\6_ico.exe"C:\Users\Admin\AppData\Local\Temp\New Feature\6_ico.exe"2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3748 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\rgytcwbqagf & timeout 2 & del /f /q "C:\Users\Admin\AppData\Local\Temp\New Feature\6_ico.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:720 -
C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:1528
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\rgytcwbqagf & timeout 2 & del /f /q "C:\Users\Admin\AppData\Local\Temp\New Feature\6_ico.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:4144
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C:\Users\Admin\AppData\Local\Temp\New Feature\vpn_ico.exe"C:\Users\Admin\AppData\Local\Temp\New Feature\vpn_ico.exe"2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Users\Admin\AppData\Local\Temp\dunijgijkc.exe"C:\Users\Admin\AppData\Local\Temp\dunijgijkc.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3536 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\DUNIJG~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\DUNIJG~1.EXE4⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Windows\SysWOW64\RUNDLL32.EXEC:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\DUNIJG~1.DLL,ZloMfI0=5⤵
- Blocklisted 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:4328 -
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\tmpD9EB.tmp.ps1"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4640
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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\tmpFA94.tmp.ps1"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Windows\SysWOW64\nslookup.exe"C:\Windows\system32\nslookup.exe" -type=any localhost7⤵PID:5096
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C:\Windows\SysWOW64\schtasks.exeschtasks /End /tn \Microsoft\Windows\Wininet\CacheTask6⤵PID:1008
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C:\Windows\SysWOW64\schtasks.exeschtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask6⤵PID:196
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\llcosxs.vbs"3⤵PID:2040
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\yonfuhhrwq.vbs"3⤵
- Blocklisted process makes network request
- Modifies system certificate store
PID:4524
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