Analysis Overview
SHA256
46b5e0aa12026e4615bbbb5d4d243a5d7445de044a649bc94e7581a1d7b04e61
Threat Level: Known bad
The file 8d1b98911e753283e86aa1d84a2826d8 was found to be: Known bad.
Malicious Activity Summary
UAC bypass
ModiLoader, DBatLoader
ModiLoader Second Stage
Deletes itself
Themida packer
Executes dropped EXE
Adds Run key to start application
Checks whether UAC is enabled
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
System policy modification
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-03 19:04
Signatures
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-03 19:04
Reported
2024-02-03 19:07
Platform
win7-20231215-en
Max time kernel
145s
Max time network
123s
Command Line
Signatures
ModiLoader, DBatLoader
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" | C:\Windows\mstwain32.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\mstwain32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | N/A |
| File created | C:\Windows\ntdtcstp.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\cmsetac.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2196 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | C:\Windows\mstwain32.exe |
| PID 2196 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | C:\Windows\mstwain32.exe |
| PID 2196 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | C:\Windows\mstwain32.exe |
| PID 2196 wrote to memory of 1656 | N/A | C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe | C:\Windows\mstwain32.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe
"C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nenibolado.no-ip.org | udp |
Files
memory/2196-0-0x0000000000270000-0x0000000000271000-memory.dmp
memory/2196-1-0x0000000001EC0000-0x0000000001FA4000-memory.dmp
memory/2196-2-0x0000000000400000-0x000000000069E000-memory.dmp
memory/2196-3-0x0000000004320000-0x0000000004321000-memory.dmp
memory/2196-19-0x0000000004420000-0x0000000004421000-memory.dmp
memory/2196-18-0x00000000043C0000-0x00000000043C1000-memory.dmp
memory/2196-17-0x0000000004350000-0x0000000004351000-memory.dmp
memory/2196-16-0x0000000004360000-0x0000000004361000-memory.dmp
memory/2196-15-0x0000000004440000-0x0000000004441000-memory.dmp
memory/2196-14-0x0000000004330000-0x0000000004331000-memory.dmp
memory/2196-13-0x0000000004370000-0x0000000004371000-memory.dmp
memory/2196-12-0x00000000043F0000-0x00000000043F1000-memory.dmp
memory/2196-11-0x00000000043D0000-0x00000000043D1000-memory.dmp
memory/2196-10-0x0000000004480000-0x0000000004481000-memory.dmp
memory/2196-9-0x00000000043B0000-0x00000000043B1000-memory.dmp
memory/2196-8-0x00000000043A0000-0x00000000043A1000-memory.dmp
memory/2196-7-0x0000000004490000-0x0000000004491000-memory.dmp
memory/2196-6-0x0000000004380000-0x0000000004381000-memory.dmp
memory/2196-5-0x00000000041B0000-0x00000000041B1000-memory.dmp
memory/2196-4-0x0000000004340000-0x0000000004341000-memory.dmp
memory/2196-20-0x00000000044B0000-0x00000000044B1000-memory.dmp
memory/2196-21-0x0000000004110000-0x0000000004111000-memory.dmp
memory/2196-22-0x0000000000400000-0x000000000069E000-memory.dmp
memory/2196-25-0x0000000004430000-0x0000000004431000-memory.dmp
C:\Windows\mstwain32.exe
| MD5 | 8d1b98911e753283e86aa1d84a2826d8 |
| SHA1 | 9229784e22dbe0e3064c41a0e1f886b915f6168f |
| SHA256 | 46b5e0aa12026e4615bbbb5d4d243a5d7445de044a649bc94e7581a1d7b04e61 |
| SHA512 | 5c890395f5676801749a5810aca8237f988be5996ed6f742d085a12311b1e7964e5e9f211ae5fcb84c80e5cf08a5ad34006107c45f254875757a2aacad11343b |
memory/2196-33-0x0000000000400000-0x000000000069E000-memory.dmp
memory/2196-32-0x0000000000270000-0x0000000000271000-memory.dmp
memory/2196-34-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-35-0x0000000000840000-0x0000000000841000-memory.dmp
memory/1656-49-0x0000000004400000-0x0000000004401000-memory.dmp
memory/1656-48-0x0000000004460000-0x0000000004461000-memory.dmp
memory/1656-47-0x00000000043B0000-0x00000000043B2000-memory.dmp
memory/1656-46-0x00000000043A0000-0x00000000043A1000-memory.dmp
memory/1656-45-0x0000000004470000-0x0000000004471000-memory.dmp
memory/1656-51-0x0000000004960000-0x000000000496E000-memory.dmp
memory/1656-50-0x00000000043C0000-0x00000000043C1000-memory.dmp
memory/1656-44-0x00000000044C0000-0x00000000044C1000-memory.dmp
memory/1656-43-0x0000000004380000-0x0000000004381000-memory.dmp
memory/1656-42-0x00000000041B0000-0x00000000041B1000-memory.dmp
memory/1656-41-0x0000000004200000-0x0000000004201000-memory.dmp
memory/1656-64-0x00000000044B0000-0x00000000044B1000-memory.dmp
memory/1656-67-0x0000000000AC0000-0x0000000000AC1000-memory.dmp
memory/1656-66-0x00000000041F0000-0x00000000041F1000-memory.dmp
memory/1656-65-0x00000000754A0000-0x00000000754B4000-memory.dmp
memory/1656-63-0x0000000004450000-0x0000000004451000-memory.dmp
memory/1656-62-0x0000000004430000-0x0000000004431000-memory.dmp
memory/1656-61-0x0000000004490000-0x0000000004491000-memory.dmp
memory/1656-60-0x0000000004410000-0x0000000004411000-memory.dmp
memory/1656-59-0x0000000004210000-0x0000000004211000-memory.dmp
memory/1656-58-0x0000000004220000-0x0000000004221000-memory.dmp
memory/1656-57-0x0000000004420000-0x0000000004421000-memory.dmp
memory/1656-56-0x00000000044D0000-0x00000000044D1000-memory.dmp
memory/1656-55-0x00000000043E0000-0x00000000043E1000-memory.dmp
memory/1656-54-0x0000000004370000-0x0000000004371000-memory.dmp
memory/1656-53-0x00000000043D0000-0x00000000043D2000-memory.dmp
memory/1656-40-0x00000000041E0000-0x00000000041E1000-memory.dmp
memory/1656-39-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-68-0x00000000761D0000-0x00000000762C0000-memory.dmp
memory/1656-69-0x0000000004950000-0x0000000004951000-memory.dmp
memory/1656-70-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-71-0x0000000000840000-0x0000000000841000-memory.dmp
memory/1656-72-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-73-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-74-0x00000000761D0000-0x00000000762C0000-memory.dmp
memory/1656-75-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-76-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-78-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-79-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-80-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-81-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-82-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-83-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-84-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-85-0x0000000000400000-0x000000000069E000-memory.dmp
memory/1656-86-0x0000000000400000-0x000000000069E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-03 19:04
Reported
2024-02-03 19:07
Platform
win10v2004-20231215-en
Max time kernel
152s
Max time network
159s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe
"C:\Users\Admin\AppData\Local\Temp\8d1b98911e753283e86aa1d84a2826d8.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 177.113.50.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 182.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.73.50.20.in-addr.arpa | udp |
Files
memory/3524-1-0x00000000023C0000-0x00000000024A4000-memory.dmp
memory/3524-0-0x0000000000B40000-0x0000000000B41000-memory.dmp