Analysis Overview
SHA256
f71318cf8ed1b720cae18bbbc39486327f4d982d6ff02ec0b571ac2b6945c195
Threat Level: Known bad
The file 8c8a12ad071e2916f1601a12879c14dd was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
UAC bypass
ModiLoader Second Stage
UPX packed file
Deletes itself
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Checks whether UAC is enabled
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Uses Volume Shadow Copy service COM API
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
System policy modification
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-03 14:17
Signatures
UPX packed file
| 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 14:17
Reported
2024-02-03 14:19
Platform
win7-20231215-en
Max time kernel
144s
Max time network
144s
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 |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\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\8c8a12ad071e2916f1601a12879c14dd.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 created | C:\Windows\cmsetac.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | N/A |
| File opened for modification | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | N/A |
| File created | C:\Windows\ntdtcstp.dll | C:\Windows\mstwain32.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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 FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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 1752 wrote to memory of 2976 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 2976 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 2976 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 2976 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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\8c8a12ad071e2916f1601a12879c14dd.exe
"C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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\8c8a12ad071e2916f1601a12879c14dd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
Files
memory/1752-0-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1752-1-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/1752-2-0x00000000024D0000-0x00000000024D1000-memory.dmp
C:\Windows\mstwain32.exe
| MD5 | 8c8a12ad071e2916f1601a12879c14dd |
| SHA1 | 33c46d051870a085f7731626fc327975134a1559 |
| SHA256 | f71318cf8ed1b720cae18bbbc39486327f4d982d6ff02ec0b571ac2b6945c195 |
| SHA512 | ef9c89ed4c86d2b899b7785ba1417b3d53053baea0947107e32e92433416b03fa7238ee6bf3b9f35701881143c7868b3e950d0d267e6ef52790ed1f2dfabc055 |
memory/1752-14-0x0000000003E10000-0x0000000003E62000-memory.dmp
memory/1752-13-0x0000000003E10000-0x0000000003E20000-memory.dmp
memory/2976-15-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1752-12-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-21-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2976-23-0x0000000074A40000-0x0000000074A54000-memory.dmp
memory/2976-22-0x0000000076330000-0x0000000076420000-memory.dmp
memory/2976-19-0x0000000001E20000-0x0000000001E2E000-memory.dmp
memory/2976-24-0x0000000000510000-0x0000000000511000-memory.dmp
memory/2976-25-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1752-26-0x0000000003E10000-0x0000000003E62000-memory.dmp
memory/2976-27-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-29-0x0000000076330000-0x0000000076420000-memory.dmp
memory/2976-28-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-30-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-31-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-32-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-34-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-35-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-36-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-37-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-38-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-39-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-40-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-41-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2976-42-0x0000000000400000-0x0000000000452000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-03 14:17
Reported
2024-02-03 14:19
Platform
win10v2004-20231222-en
Max time kernel
142s
Max time network
147s
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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Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | N/A |
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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\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\8c8a12ad071e2916f1601a12879c14dd.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 created | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | N/A |
| File opened for modification | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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 |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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 4488 wrote to memory of 1692 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | C:\Windows\mstwain32.exe |
| PID 4488 wrote to memory of 1692 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.exe | C:\Windows\mstwain32.exe |
| PID 4488 wrote to memory of 1692 | N/A | C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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\8c8a12ad071e2916f1601a12879c14dd.exe
"C:\Users\Admin\AppData\Local\Temp\8c8a12ad071e2916f1601a12879c14dd.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\8c8a12ad071e2916f1601a12879c14dd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
| US | 8.8.8.8:53 | hurt23.mine.nu | udp |
Files
memory/4488-0-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4488-1-0x00000000005A0000-0x00000000005A1000-memory.dmp
C:\Windows\mstwain32.exe
| MD5 | 8c8a12ad071e2916f1601a12879c14dd |
| SHA1 | 33c46d051870a085f7731626fc327975134a1559 |
| SHA256 | f71318cf8ed1b720cae18bbbc39486327f4d982d6ff02ec0b571ac2b6945c195 |
| SHA512 | ef9c89ed4c86d2b899b7785ba1417b3d53053baea0947107e32e92433416b03fa7238ee6bf3b9f35701881143c7868b3e950d0d267e6ef52790ed1f2dfabc055 |
memory/4488-11-0x0000000000400000-0x0000000000452000-memory.dmp
C:\Windows\ntdtcstp.dll
| MD5 | 67587e25a971a141628d7f07bd40ffa0 |
| SHA1 | 76fcd014539a3bb247cc0b761225f68bd6055f6b |
| SHA256 | e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378 |
| SHA512 | 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350 |
memory/1692-20-0x0000000000730000-0x0000000000731000-memory.dmp
C:\Windows\cmsetac.dll
| MD5 | c200deb575126b97609d020897aaa5ac |
| SHA1 | 9d086f32f5e6a134c5a9dffe35d29c2a3261a42f |
| SHA256 | a4a0c6545cd3990fcfb973ff5b76517520edf142d9f09fbcb118c92574ed2762 |
| SHA512 | c8040e3997967d4c25401b53b9fb97545709829876031cdd985c46cf0cccb467a546c8563441b2fbe2e03de0c9829732a345eb629e2eb2eecb87026794e4b7d7 |
memory/1692-24-0x00000000009C0000-0x00000000009CE000-memory.dmp
memory/1692-27-0x00000000009B0000-0x00000000009B1000-memory.dmp
memory/1692-28-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-29-0x0000000000790000-0x0000000000798000-memory.dmp
memory/1692-30-0x00000000009C0000-0x00000000009CE000-memory.dmp
memory/1692-31-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-32-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-35-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-38-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-41-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-44-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-47-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-50-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-53-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-56-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-59-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-62-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-65-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1692-68-0x0000000000400000-0x0000000000452000-memory.dmp