Analysis Overview
SHA256
f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3
Threat Level: Known bad
The file f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3 was found to be: Known bad.
Malicious Activity Summary
VanillaRat
Vanilla Rat payload
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-10 13:46
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-10 13:46
Reported
2024-08-10 13:48
Platform
win10v2004-20240802-en
Max time kernel
144s
Max time network
126s
Command Line
Signatures
VanillaRat
Vanilla Rat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSBuild.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4444 set thread context of 2492 | N/A | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\MSBuild.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe
"C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
#by-unknown
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
#by-unknown
C:\Users\Admin\AppData\Roaming\MSBuild.exe
"C:\Users\Admin\AppData\Roaming\MSBuild.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
Files
memory/4444-0-0x0000000074FCE000-0x0000000074FCF000-memory.dmp
memory/4444-1-0x0000000000700000-0x0000000000748000-memory.dmp
memory/2492-2-0x0000000000400000-0x0000000000422000-memory.dmp
memory/4444-4-0x0000000074FC0000-0x0000000075770000-memory.dmp
memory/2492-5-0x0000000074FC0000-0x0000000075770000-memory.dmp
memory/4444-6-0x0000000074FC0000-0x0000000075770000-memory.dmp
memory/2492-7-0x0000000005F60000-0x0000000006504000-memory.dmp
memory/2492-8-0x00000000058B0000-0x0000000005942000-memory.dmp
memory/2492-9-0x0000000074FC0000-0x0000000075770000-memory.dmp
memory/2492-10-0x0000000005970000-0x000000000597A000-memory.dmp
C:\Users\Admin\AppData\Roaming\MSBuild.exe
| MD5 | 8fdf47e0ff70c40ed3a17014aeea4232 |
| SHA1 | e6256a0159688f0560b015da4d967f41cbf8c9bd |
| SHA256 | ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82 |
| SHA512 | bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be |
memory/2492-21-0x0000000074FC0000-0x0000000075770000-memory.dmp
memory/4988-23-0x0000000074F90000-0x000000007503B000-memory.dmp
memory/4988-25-0x0000000002E60000-0x0000000002E7A000-memory.dmp
memory/4988-26-0x00000000054B0000-0x000000000560A000-memory.dmp
memory/4988-24-0x0000000000AD0000-0x0000000000B10000-memory.dmp
memory/4988-28-0x0000000074F90000-0x000000007503B000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-10 13:46
Reported
2024-08-10 13:48
Platform
win7-20240705-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
VanillaRat
Vanilla Rat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSBuild.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1904 set thread context of 2020 | N/A | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\MSBuild.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe
"C:\Users\Admin\AppData\Local\Temp\f05a9ea1aa0a3f710c58366adf8c58ee9525537cbf2f621f753bd4a1ff5db8f3.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
#by-unknown
C:\Users\Admin\AppData\Roaming\MSBuild.exe
"C:\Users\Admin\AppData\Roaming\MSBuild.exe"
Network
Files
memory/1904-0-0x0000000074CEE000-0x0000000074CEF000-memory.dmp
memory/1904-1-0x0000000000040000-0x0000000000088000-memory.dmp
memory/1904-2-0x0000000074CE0000-0x00000000753CE000-memory.dmp
memory/2020-8-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-12-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1904-13-0x0000000074CE0000-0x00000000753CE000-memory.dmp
memory/2020-10-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/2020-6-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-5-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-4-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-3-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2020-14-0x0000000074CE0000-0x00000000753CE000-memory.dmp
memory/2020-15-0x0000000074CE0000-0x00000000753CE000-memory.dmp
\Users\Admin\AppData\Roaming\MSBuild.exe
| MD5 | 9af17c8393f0970ee5136bd3ffa27001 |
| SHA1 | 4b285b72c1a11285a25f31f2597e090da6bbc049 |
| SHA256 | 71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019 |
| SHA512 | b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3 |
memory/2020-24-0x0000000074CE0000-0x00000000753CE000-memory.dmp
memory/2660-23-0x0000000000EF0000-0x0000000000F30000-memory.dmp