Analysis
- max time kernel
172s - max time network
176s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
21/11/2022, 14:33
Behavioral task
behavioral1
Sample
669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe
Resource
win7-20220812-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe
Resource
win10v2004-20221111-en
11 signatures
150 seconds
General
- Target 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe
- Size 306KB
- Sample221121-rxbkasdf89
- SHA256 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1
- MD5 09d18b9a9e18257371c2610f99fe472a
- SHA1 75e6633f48e4b57879c8f69017a6d94200394bb7
- SHA512 83fd0a345b80f1a1e01e7b5605035caf83ed5b7b6694ec1d3ce27005b4a8d4c5aa2eebd72c77b1a3086bbc0e92406c74ae062797570702d926912e96dc80ee9d
- SSDEEP 6144:xfNdLF0ocp0dyd+97C6H8nnMHPer11XgUfcgxFomgXHsMjoS/:xFdLF9S0deQJ8n7RkgxFZgXxoS/
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies firewall policy service 2 TTPs 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Window Updates\\winupdt2.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Windows Updater.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Updater.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe - Executes dropped EXE 3 IoCs
pid Process 700 winupdt2.exe 3952 winupdt2.exe 5096 winupdt2.exe -
resource yara_rule upx behavioral2/memory/2220-134-0x0000000000400000-0x00000000005C9000-memory.dmp upx behavioral2/files/0x0008000000022e16-139.dat upx behavioral2/files/0x0008000000022e16-140.dat upx behavioral2/memory/2220-141-0x0000000000400000-0x00000000005C9000-memory.dmp upx behavioral2/memory/3952-145-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/files/0x0008000000022e16-146.dat upx behavioral2/memory/700-148-0x0000000000400000-0x00000000005C9000-memory.dmp upx behavioral2/memory/3952-150-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/5096-152-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/3952-151-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/files/0x0008000000022e16-153.dat upx behavioral2/memory/5096-157-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/700-159-0x0000000000400000-0x00000000005C9000-memory.dmp upx behavioral2/memory/5096-161-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/5096-171-0x0000000000400000-0x0000000000409000-memory.dmp upx behavioral2/memory/3952-172-0x0000000000400000-0x000000000045C000-memory.dmp upx behavioral2/memory/3952-173-0x0000000000400000-0x000000000045C000-memory.dmp upx - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdt = "C:\\Users\\Admin\\AppData\\Roaming\\Window Updates\\winupdt2.exe" reg.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 700 set thread context of 3952 700 winupdt2.exe 89 PID 700 set thread context of 5096 700 winupdt2.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies registry key 1 TTPs 4 IoCs
pid Process 3820 reg.exe 3140 reg.exe 4920 reg.exe 3440 reg.exe - Suspicious use of AdjustPrivilegeToken 36 IoCs
description pid Process Token: 1 3952 winupdt2.exe Token: SeCreateTokenPrivilege 3952 winupdt2.exe Token: SeAssignPrimaryTokenPrivilege 3952 winupdt2.exe Token: SeLockMemoryPrivilege 3952 winupdt2.exe Token: SeIncreaseQuotaPrivilege 3952 winupdt2.exe Token: SeMachineAccountPrivilege 3952 winupdt2.exe Token: SeTcbPrivilege 3952 winupdt2.exe Token: SeSecurityPrivilege 3952 winupdt2.exe Token: SeTakeOwnershipPrivilege 3952 winupdt2.exe Token: SeLoadDriverPrivilege 3952 winupdt2.exe Token: SeSystemProfilePrivilege 3952 winupdt2.exe Token: SeSystemtimePrivilege 3952 winupdt2.exe Token: SeProfSingleProcessPrivilege 3952 winupdt2.exe Token: SeIncBasePriorityPrivilege 3952 winupdt2.exe Token: SeCreatePagefilePrivilege 3952 winupdt2.exe Token: SeCreatePermanentPrivilege 3952 winupdt2.exe Token: SeBackupPrivilege 3952 winupdt2.exe Token: SeRestorePrivilege 3952 winupdt2.exe Token: SeShutdownPrivilege 3952 winupdt2.exe Token: SeDebugPrivilege 3952 winupdt2.exe Token: SeAuditPrivilege 3952 winupdt2.exe Token: SeSystemEnvironmentPrivilege 3952 winupdt2.exe Token: SeChangeNotifyPrivilege 3952 winupdt2.exe Token: SeRemoteShutdownPrivilege 3952 winupdt2.exe Token: SeUndockPrivilege 3952 winupdt2.exe Token: SeSyncAgentPrivilege 3952 winupdt2.exe Token: SeEnableDelegationPrivilege 3952 winupdt2.exe Token: SeManageVolumePrivilege 3952 winupdt2.exe Token: SeImpersonatePrivilege 3952 winupdt2.exe Token: SeCreateGlobalPrivilege 3952 winupdt2.exe Token: 31 3952 winupdt2.exe Token: 32 3952 winupdt2.exe Token: 33 3952 winupdt2.exe Token: 34 3952 winupdt2.exe Token: 35 3952 winupdt2.exe Token: SeDebugPrivilege 5096 winupdt2.exe - Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 700 winupdt2.exe 3952 winupdt2.exe 3952 winupdt2.exe 5096 winupdt2.exe 3952 winupdt2.exe - Suspicious use of WriteProcessMemory 49 IoCs
description pid Process procid_target PID 2220 wrote to memory of 1320 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 84 PID 2220 wrote to memory of 1320 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 84 PID 2220 wrote to memory of 1320 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 84 PID 1320 wrote to memory of 4332 1320 cmd.exe 87 PID 1320 wrote to memory of 4332 1320 cmd.exe 87 PID 1320 wrote to memory of 4332 1320 cmd.exe 87 PID 2220 wrote to memory of 700 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 88 PID 2220 wrote to memory of 700 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 88 PID 2220 wrote to memory of 700 2220 669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe 88 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 3952 700 winupdt2.exe 89 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 700 wrote to memory of 5096 700 winupdt2.exe 90 PID 3952 wrote to memory of 2864 3952 winupdt2.exe 91 PID 3952 wrote to memory of 2864 3952 winupdt2.exe 91 PID 3952 wrote to memory of 2864 3952 winupdt2.exe 91 PID 3952 wrote to memory of 2496 3952 winupdt2.exe 94 PID 3952 wrote to memory of 2496 3952 winupdt2.exe 94 PID 3952 wrote to memory of 2496 3952 winupdt2.exe 94 PID 3952 wrote to memory of 4932 3952 winupdt2.exe 92 PID 3952 wrote to memory of 4932 3952 winupdt2.exe 92 PID 3952 wrote to memory of 4932 3952 winupdt2.exe 92 PID 3952 wrote to memory of 3688 3952 winupdt2.exe 97 PID 3952 wrote to memory of 3688 3952 winupdt2.exe 97 PID 3952 wrote to memory of 3688 3952 winupdt2.exe 97 PID 2864 wrote to memory of 4920 2864 cmd.exe 99 PID 2864 wrote to memory of 4920 2864 cmd.exe 99 PID 2864 wrote to memory of 4920 2864 cmd.exe 99 PID 2496 wrote to memory of 3440 2496 cmd.exe 100 PID 2496 wrote to memory of 3440 2496 cmd.exe 100 PID 2496 wrote to memory of 3440 2496 cmd.exe 100 PID 4932 wrote to memory of 3820 4932 cmd.exe 101 PID 4932 wrote to memory of 3820 4932 cmd.exe 101 PID 4932 wrote to memory of 3820 4932 cmd.exe 101 PID 3688 wrote to memory of 3140 3688 cmd.exe 102 PID 3688 wrote to memory of 3140 3688 cmd.exe 102 PID 3688 wrote to memory of 3140 3688 cmd.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe"C:\Users\Admin\AppData\Local\Temp\669a8a3ed205d316851d7d65587d062ad6a534df0959c8ad1675d0933ebf72a1.exe"1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kGuyq.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WinUpdt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /f3⤵
- Adds Run key to start application
PID:4332
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C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:700 -
C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3952 -
C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- Modifies registry key
PID:4920
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f5⤵
- Modifies firewall policy service
- Modifies registry key
PID:3820
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f4⤵
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- Modifies registry key
PID:3440
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f4⤵
- Suspicious use of WriteProcessMemory
PID:3688 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Windows Updater.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windows Updater.exe:*:Enabled:Windows Messanger" /f5⤵
- Modifies firewall policy service
- Modifies registry key
PID:3140
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C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5096
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\kGuyq.bat
- Size 152B
- SHA256 734c4f48449a118dbdfbbe4971ecf112b26b2b45d1889678c01dea98eb5767d8
- MD5 49bb161b07149b1bda99901c71d98b1f
- SHA1 e5e3b389c09d551bd8f3a4cf71ee30e566fdf6e2
- SHA512 da09a2af9b7f9528916ab719ed97ee8b61179bba92016eaed64b3e7d6bf08646801aeeb0eb332bdde175eb64b48106f7cf2fe2bf01ea6128753e4ce1d48707be
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
- Size 306KB
- SHA256 3f07e960ceee8ee1078e0ed66bdb052c5d19f84761801739f3396eb2515e0e19
- MD5 cbb148430b8d7388572a795b3db9177e
- SHA1 77e1fb3af0968e86951bda6e99a2a4e09d697237
- SHA512 813f0eb583c1627bf546b86dab78ed76d8312f04b37763c5ec9ef435d4784c8e0d600df891cc82d4f1e69cc668dd14a476e8759b5008a521b9de379259be030d
- SSDEEP 6144:xfNdLF0ocp0dyd+97C6H8nnMHPer11XgUfcgxFomgXHsMjoS0:xFdLF9S0deQJ8n7RkgxFZgXxoS0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
- Size 306KB
- SHA256 3f07e960ceee8ee1078e0ed66bdb052c5d19f84761801739f3396eb2515e0e19
- MD5 cbb148430b8d7388572a795b3db9177e
- SHA1 77e1fb3af0968e86951bda6e99a2a4e09d697237
- SHA512 813f0eb583c1627bf546b86dab78ed76d8312f04b37763c5ec9ef435d4784c8e0d600df891cc82d4f1e69cc668dd14a476e8759b5008a521b9de379259be030d
- SSDEEP 6144:xfNdLF0ocp0dyd+97C6H8nnMHPer11XgUfcgxFomgXHsMjoS0:xFdLF9S0deQJ8n7RkgxFZgXxoS0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
- Size 306KB
- SHA256 3f07e960ceee8ee1078e0ed66bdb052c5d19f84761801739f3396eb2515e0e19
- MD5 cbb148430b8d7388572a795b3db9177e
- SHA1 77e1fb3af0968e86951bda6e99a2a4e09d697237
- SHA512 813f0eb583c1627bf546b86dab78ed76d8312f04b37763c5ec9ef435d4784c8e0d600df891cc82d4f1e69cc668dd14a476e8759b5008a521b9de379259be030d
- SSDEEP 6144:xfNdLF0ocp0dyd+97C6H8nnMHPer11XgUfcgxFomgXHsMjoS0:xFdLF9S0deQJ8n7RkgxFZgXxoS0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Window Updates\winupdt2.exe
- Size 306KB
- SHA256 3f07e960ceee8ee1078e0ed66bdb052c5d19f84761801739f3396eb2515e0e19
- MD5 cbb148430b8d7388572a795b3db9177e
- SHA1 77e1fb3af0968e86951bda6e99a2a4e09d697237
- SHA512 813f0eb583c1627bf546b86dab78ed76d8312f04b37763c5ec9ef435d4784c8e0d600df891cc82d4f1e69cc668dd14a476e8759b5008a521b9de379259be030d
- SSDEEP 6144:xfNdLF0ocp0dyd+97C6H8nnMHPer11XgUfcgxFomgXHsMjoS0:xFdLF9S0deQJ8n7RkgxFZgXxoS0
- MD5 SHA1 SHA512 SSDEEP