Analysis
- max time kernel
144s - max time network
149s - platform
windows7_x64 - resource
win7v20201028 - submitted
10/11/2020, 11:00
Static task
static1
Behavioral task
behavioral1
Sample
74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe
- Size 220KB
- Sample201110-bmbgfbs3t6
- SHA256 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768
- MD5 ef0c0ca571cf6444ff4a9927a9ccd088
- SHA1 8cd83ab17e948c1bc3d7762a397b67270790b615
- SHA512 af43e305911cb7a50c64af3433c763d0a367778a6c8d767ed41a86530ac68ba5ede2adbb38aa60e0ec5627fbe4c5f3f81e683c5e5ae368681d4463b2bfc98c45
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe, C:\\Users\\Admin\\AppData\\Local\\_foldernamelocalappdata_\\sqlsrv3232.exe" sqlsrv3232.exe - Executes dropped EXE 3 IoCs
pid Process 1964 sqlsrv3232.exe 1660 sqlsrv3232.exe 1528 sqlsrv3232.exe - Deletes itself 1 IoCs
pid Process 880 cmd.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*sqlsrv3232 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe" 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\sqlsrv3232 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe" 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Modifies service 2 TTPs 28 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelEndpoint 3.0.0.0\Linkage\Export = 53006500720076006900630065004d006f00640065006c0045006e00640070006f0069006e007400200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelService 3.0.0.0\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Windows Workflow Foundation 4.0.0.0\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SMSvcHost 4.0.0.0\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Windows Workflow Foundation 3.0.0.0\Linkage sqlsrv3232.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Outlook\Performance\1021 = "132494803420185216" sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MSDTC Bridge 4.0.0.0\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelOperation 3.0.0.0\Linkage sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelOperation 3.0.0.0\Linkage\Export = 53006500720076006900630065004d006f00640065006c004f007000650072006100740069006f006e00200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SMSvcHost 3.0.0.0\Linkage\Export = 53004d0053007600630048006f0073007400200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Windows Workflow Foundation 3.0.0.0\Linkage\Export = 570069006e0064006f0077007300200057006f0072006b0066006c006f007700200046006f0075006e0064006100740069006f006e00200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MSDTC Bridge 3.0.0.0\Linkage\Export = 4d0053004400540043002000420072006900640067006500200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelService 3.0.0.0\Linkage\Export = 53006500720076006900630065004d006f00640065006c005300650072007600690063006500200033002e0030002e0030002e00300000000000 sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET CLR Data\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET CLR Networking 4.0.0.0\Linkage sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SMSvcHost 4.0.0.0\Linkage\Export = 53004d0053007600630048006f0073007400200034002e0030002e0030002e00300000000000 sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET Data Provider for Oracle\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET Data Provider for SqlServer\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET Memory Cache 4.0\Linkage sqlsrv3232.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Outlook\Performance\Disable Performance Counters = "4" sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET CLR Networking\Linkage sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\.NET Memory Cache 4.0\Linkage\Export = 2e004e004500540020004d0065006d006f0072007900200043006100630068006500200034002e00300000000000 sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SMSvcHost 3.0.0.0\Linkage sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\BITS\Performance sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MSDTC Bridge 3.0.0.0\Linkage sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MSDTC Bridge 4.0.0.0\Linkage\Export = 4d0053004400540043002000420072006900640067006500200034002e0030002e0030002e00300000000000 sqlsrv3232.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ServiceModelEndpoint 3.0.0.0\Linkage sqlsrv3232.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Windows Workflow Foundation 4.0.0.0\Linkage\Export = 570069006e0064006f0077007300200057006f0072006b0066006c006f007700200046006f0075006e0064006100740069006f006e00200034002e0030002e0030002e00300000000000 sqlsrv3232.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 316 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 1676 timeout.exe - Suspicious behavior: EnumeratesProcesses 68 IoCs
pid Process 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe 1964 sqlsrv3232.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1964 sqlsrv3232.exe - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1032 wrote to memory of 1964 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 26 PID 1032 wrote to memory of 1964 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 26 PID 1032 wrote to memory of 1964 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 26 PID 1032 wrote to memory of 1148 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 27 PID 1032 wrote to memory of 1148 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 27 PID 1032 wrote to memory of 1148 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 27 PID 1032 wrote to memory of 880 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 29 PID 1032 wrote to memory of 880 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 29 PID 1032 wrote to memory of 880 1032 74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe 29 PID 880 wrote to memory of 1676 880 cmd.exe 31 PID 880 wrote to memory of 1676 880 cmd.exe 31 PID 880 wrote to memory of 1676 880 cmd.exe 31 PID 1964 wrote to memory of 316 1964 sqlsrv3232.exe 35 PID 1964 wrote to memory of 316 1964 sqlsrv3232.exe 35 PID 1964 wrote to memory of 316 1964 sqlsrv3232.exe 35 PID 648 wrote to memory of 1660 648 taskeng.exe 40 PID 648 wrote to memory of 1660 648 taskeng.exe 40 PID 648 wrote to memory of 1660 648 taskeng.exe 40 PID 648 wrote to memory of 1528 648 taskeng.exe 41 PID 648 wrote to memory of 1528 648 taskeng.exe 41 PID 648 wrote to memory of 1528 648 taskeng.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe"C:\Users\Admin\AppData\Local\Temp\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exe"C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies service
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn Admin /tr "\"C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exe\" arguments" /sc MINUTE /mo 13⤵
- Creates scheduled task(s)
PID:316
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe"2⤵PID:1148
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 && del "C:\Users\Admin\AppData\Local\Temp\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe" && del "C:\Users\Admin\AppData\Local\Temp\74730cf408bf94965b783eb01a1489939694100e01ecea7c332d3efcc30fd768.exe.config"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:880 -
C:\Windows\system32\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:1676
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:572
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C:\Windows\system32\taskeng.exetaskeng.exe {87A94C6F-85B6-4B9C-8C0E-3E49C8BEAF50} S-1-5-21-3825035466-2522850611-591511364-1000:EIDQHRRL\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:648 -
C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exeC:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exe arguments2⤵
- Executes dropped EXE
PID:1660
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C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exeC:\Users\Admin\AppData\Local\_foldernamelocalappdata_\sqlsrv3232.exe arguments2⤵
- Executes dropped EXE
PID:1528
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