Analysis Overview
SHA256
35e27fd1445c11bcceede5059823629f428058d70d182dffc4d02ce0a5a5ae41
Threat Level: Known bad
The file ConsoleApplication1_protected.exe was found to be: Known bad.
Malicious Activity Summary
Detect Umbral payload
Umbral
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Checks BIOS information in registry
Themida packer
Executes dropped EXE
Checks whether UAC is enabled
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Suspicious use of WriteProcessMemory
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-11-05 03:16
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
2023-11-05 03:16
Reported
2023-11-05 03:16
Platform
win10v2004-20231023-en
Max time kernel
10s
Max time network
19s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
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Umbral
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\Speech\x124HWpAAOxjQbpVb3iT2uY8lC4Hgn0E.exe | N/A |
| N/A | N/A | C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | 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\ConsoleApplication1_protected.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\System32\Speech\x124HWpAAOxjQbpVb3iT2uY8lC4Hgn0E.exe | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
| File created | C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe
"C:\Users\Admin\AppData\Local\Temp\ConsoleApplication1_protected.exe"
C:\Windows\System32\Speech\x124HWpAAOxjQbpVb3iT2uY8lC4Hgn0E.exe
C:\Windows\System32\Speech\x124HWpAAOxjQbpVb3iT2uY8lC4Hgn0E.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c pause > nul
C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe
C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe
C:\Windows\SYSTEM32\attrib.exe
"attrib.exe" +h +s "C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 121.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 39.142.81.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gstatic.com | udp |
| NL | 142.250.179.131:443 | gstatic.com | tcp |
| US | 8.8.8.8:53 | 131.179.250.142.in-addr.arpa | udp |
Files
memory/2828-0-0x00007FFBF84F0000-0x00007FFBF86E5000-memory.dmp
memory/2828-1-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/2828-2-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/2828-3-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/2828-4-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/2828-5-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/2828-6-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
C:\Windows\System32\Speech\x124HWpAAOxjQbpVb3iT2uY8lC4Hgn0E.exe
| MD5 | cebf7458dceffcbb81a290cf045beb27 |
| SHA1 | 98c74fa610995d61d2ee78a2ea888e003e9f436d |
| SHA256 | 97d22321ba783bf6d2119320d38d776bbc6bef42fe3dadecf512e23bbdd29660 |
| SHA512 | 144f0da1e8060e08340f1b349f7bbb17be298ee3d27d056d5603143125b8a9d7abb9485d0f5a2a26e2e50f0d5970ecf5fc3a9e665eece70414c6dc1504b04a91 |
C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe
| MD5 | ef2711e9aeeb23297016ef32b46a3c7e |
| SHA1 | ba51f478c1118d7803620367cb97ce2ceba52a5a |
| SHA256 | 2fe65b8585389b60e44f688f755bbaefe5a3689737050a96c7586bd9b69a9759 |
| SHA512 | 3c5453a308f0f8321141c2949540f7c3a7c9774eb9e8767210ee30e9745caee0e8bafa8806736f1ec04bd952aa411a5a38a6c97fe19bea3d8d86729571a7059f |
C:\Windows\System32\Speech\Fo8hwdjszXcvIt64pmIY5R8iBiGY8cds.exe
| MD5 | ef2711e9aeeb23297016ef32b46a3c7e |
| SHA1 | ba51f478c1118d7803620367cb97ce2ceba52a5a |
| SHA256 | 2fe65b8585389b60e44f688f755bbaefe5a3689737050a96c7586bd9b69a9759 |
| SHA512 | 3c5453a308f0f8321141c2949540f7c3a7c9774eb9e8767210ee30e9745caee0e8bafa8806736f1ec04bd952aa411a5a38a6c97fe19bea3d8d86729571a7059f |
memory/3016-16-0x0000017855AD0000-0x0000017855B10000-memory.dmp
memory/3016-17-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
memory/2828-18-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/3016-19-0x0000017855F60000-0x0000017855F70000-memory.dmp
memory/2828-20-0x00007FFBF84F0000-0x00007FFBF86E5000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eooyuxbb.14e.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2672-30-0x00000237DC130000-0x00000237DC152000-memory.dmp
memory/2672-31-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
memory/2672-33-0x00000237DC180000-0x00000237DC190000-memory.dmp
memory/2672-32-0x00000237DC180000-0x00000237DC190000-memory.dmp
memory/2672-34-0x00000237DC180000-0x00000237DC190000-memory.dmp
memory/2672-37-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
memory/1224-39-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
memory/1224-40-0x000002B9A4960000-0x000002B9A4970000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 77d622bb1a5b250869a3238b9bc1402b |
| SHA1 | d47f4003c2554b9dfc4c16f22460b331886b191b |
| SHA256 | f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb |
| SHA512 | d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9 |
memory/3016-51-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
memory/1224-54-0x000002B9A4960000-0x000002B9A4970000-memory.dmp
memory/2828-56-0x00007FFBF84F0000-0x00007FFBF86E5000-memory.dmp
memory/2828-53-0x00007FF6DBBA0000-0x00007FF6DFCF4000-memory.dmp
memory/1224-57-0x00007FFBD8DA0000-0x00007FFBD9861000-memory.dmp
memory/3016-60-0x0000017870220000-0x0000017870296000-memory.dmp
memory/3016-61-0x00000178702A0000-0x00000178702F0000-memory.dmp
memory/3016-62-0x00000178578C0000-0x00000178578DE000-memory.dmp