Analysis Overview
SHA256
5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e
Threat Level: Known bad
The file 5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e was found to be: Known bad.
Malicious Activity Summary
Orcurs Rat Executable
Orcus family
Orcus main payload
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-02-20 01:34
Signatures
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcus family
Orcus main payload
| 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
2024-02-20 01:34
Reported
2024-02-20 01:37
Platform
win7-20231215-en
Max time kernel
145s
Max time network
147s
Command Line
Signatures
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe
"C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\p-io0icn.cmdline"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES1B01.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC1B00.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
Files
memory/1852-0-0x0000000000B60000-0x0000000000BBC000-memory.dmp
memory/1852-1-0x0000000000290000-0x000000000029E000-memory.dmp
memory/1852-3-0x0000000000C20000-0x0000000000CA0000-memory.dmp
memory/1852-2-0x000007FEF5B30000-0x000007FEF64CD000-memory.dmp
memory/1852-4-0x000007FEF5B30000-0x000007FEF64CD000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\p-io0icn.cmdline
| MD5 | b5aaff5b6f7575f51c3dd8f69dbb4b10 |
| SHA1 | c33a193c34e24acbaaaac0b7e8cbacad5612ae83 |
| SHA256 | 38674e8c81819da1e67465a85e9f6160259a69620713d65fe201be49b4fcb1af |
| SHA512 | d2086110aaf5f6e4c1f71232775077499f2254b3262803ad3918e65f6f5adf1c5fe607f084001fce5d445984b72bb81a8bb39e6e79ea6ab7f7c3e4369da6444a |
\??\c:\Users\Admin\AppData\Local\Temp\p-io0icn.0.cs
| MD5 | 250321226bbc2a616d91e1c82cb4ab2b |
| SHA1 | 7cffd0b2e9c842865d8961386ab8fcfac8d04173 |
| SHA256 | ef2707f83a0c0927cfd46b115641b9cae52a41123e4826515b9eeb561785218d |
| SHA512 | bda59ca04cdf254f837f2cec6da55eff5c3d2af00da66537b9ebaa3601c502ae63772f082fd12663b63d537d2e03efe87a3b5746ef25e842aaf1c7d88245b4e1 |
\??\c:\Users\Admin\AppData\Local\Temp\CSC1B00.tmp
| MD5 | bfd223abe3edceda54ba0eb2adafc1de |
| SHA1 | 243116c8256faa8e57a8a6495d1d732510336743 |
| SHA256 | a7bc98e4880df8f4d98bf1045f551195bb1a5954440877290fafdd1330942611 |
| SHA512 | e6d474b1849d5eddf4e0c393affd4c4a8ce4f69c29fbdfe3ad470f06df4fbd60e84e4137fd22ac2bbe8fb82c91108f80e74b354ac2662c948453cfa0dde218a4 |
C:\Users\Admin\AppData\Local\Temp\RES1B01.tmp
| MD5 | d7abd66a9089d566457ec5925cce016a |
| SHA1 | 72289cd58978aff23b65240bb8437e9cc6e64bab |
| SHA256 | a0c3ef02a9d9762d438b43874f0396ff7dda2da46de54ac9dba8c511921b2ecc |
| SHA512 | 9df36fa9d6003b5e8adbd46afaab706e4b75fb23048e6bc0a5a2ce4899c9fb8925383706babeb100450aba922c8905aa5d826f2695be54781b500f8ee80d09c5 |
C:\Users\Admin\AppData\Local\Temp\p-io0icn.dll
| MD5 | 30321d90b7f09c10f21369643d059cba |
| SHA1 | 31367448a2ef34b2724863a6bba6f285f1d6c962 |
| SHA256 | 23d95535e1cda9b6b94773c21a4a5859d0263db89fc091e73e560b9e815a1960 |
| SHA512 | c8a0a045f2c8391be93851fa267a0f1d84572efad9a171b1afa14f547b5af9dbef683a1c2c3b8495f374054d6cdd3b381e9048c7ee49566e0c297d7c64ad8406 |
memory/1852-17-0x00000000006F0000-0x0000000000706000-memory.dmp
memory/1852-19-0x0000000000440000-0x0000000000452000-memory.dmp
memory/1852-20-0x0000000000BE0000-0x0000000000BF8000-memory.dmp
memory/1852-21-0x0000000000430000-0x0000000000440000-memory.dmp
memory/1852-22-0x000007FEF5B30000-0x000007FEF64CD000-memory.dmp
memory/1852-23-0x0000000000C20000-0x0000000000CA0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-20 01:34
Reported
2024-02-20 01:37
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
157s
Command Line
Signatures
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1880 wrote to memory of 3388 | N/A | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe |
| PID 1880 wrote to memory of 3388 | N/A | C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe |
| PID 3388 wrote to memory of 216 | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe |
| PID 3388 wrote to memory of 216 | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe
"C:\Users\Admin\AppData\Local\Temp\5f12cb4204a88417d92325a1d6f9dbaa6f84f084aecd3c4c9b7d307e85c19f8e.exe"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\bw3wsl0z.cmdline"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7C74.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7C64.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 25.69.169.192.in-addr.arpa | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | sulumantest.duckdns.org | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
| US | 8.8.8.8:53 | 50.192.11.51.in-addr.arpa | udp |
| US | 192.169.69.25:644 | sulumantest.duckdns.org | tcp |
Files
memory/1880-0-0x00007FF9501E0000-0x00007FF950B81000-memory.dmp
memory/1880-1-0x00000000017D0000-0x00000000017E0000-memory.dmp
memory/1880-2-0x00007FF9501E0000-0x00007FF950B81000-memory.dmp
memory/1880-3-0x000000001BED0000-0x000000001BF2C000-memory.dmp
memory/1880-6-0x000000001C0B0000-0x000000001C0BE000-memory.dmp
memory/1880-7-0x000000001C590000-0x000000001CA5E000-memory.dmp
memory/1880-8-0x000000001CB00000-0x000000001CB9C000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\bw3wsl0z.cmdline
| MD5 | faebd4a25b98c5f2f593078fe76f7c16 |
| SHA1 | 6a3a284c249d40c6baf9e5a909a91b673a36b70f |
| SHA256 | d9dfe910e796d317807ec07e13df277d3d526158d04e32b60bc5c640d156c38f |
| SHA512 | 3cf2b0dd0f264b1126e9beaa77e26bcbc15a762d3b8a3f9267dd78bfce08beddd543a398ddf6b4c0fd43e7de5c935e3b2fa9edfa92576f837cf0c76d8a009cba |
\??\c:\Users\Admin\AppData\Local\Temp\bw3wsl0z.0.cs
| MD5 | cb33f46e3a1cc1ca71e0c8ab316d7902 |
| SHA1 | 5b15865f9f819e850a80289870c56fae7c29ad3b |
| SHA256 | b6d17134822537430275aab598d167a4f2ad75e4bb7046a973d6de4998880ea3 |
| SHA512 | f69c1e6bd284cce26dd313e724131d60964dae686d2ba0fe59d24fd8a09634e3f09de9f6e1bf84c0448e64f6eaffa52c47ac55a90ef216c1033f53ddd7f35e52 |
memory/3388-14-0x0000000000A20000-0x0000000000A30000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\CSC7C64.tmp
| MD5 | 1fa7bbe4a0ce9fc449d1c968789410a3 |
| SHA1 | 1b3b5b46946f966ffb7d6ad76a9c2b59265796ea |
| SHA256 | 8efb555d1d3c2c64592b27f05131dcd86163adbb564b39fa4df8d9454e96d83f |
| SHA512 | 882629e21016f4275a6a0ea544f3b9a0d6fe2e3a6c0b319e741af167b812067998642c7e05fb004e261669ddd2abfc5c73bb3691912b11f8d23b252e4e6ac5ae |
C:\Users\Admin\AppData\Local\Temp\RES7C74.tmp
| MD5 | 9697140d0123822e202761cf3770cf14 |
| SHA1 | 396b2e27bffbaa7804a653f298d7d39e5b5c5b40 |
| SHA256 | c5b901ab4f055e36911e2cacbd050489a7fe439af7bae61134abe1750464c749 |
| SHA512 | 85e2fe0d55a4117107c6cf9ad65a74cf9be3f32b7263f3f65c3761166e2ba402eb4921908385bc47e07b42b5edaf603e1eb9a99d2f8858f083f4e28a56b47198 |
C:\Users\Admin\AppData\Local\Temp\bw3wsl0z.dll
| MD5 | 189e85213ce96e8d65962d4fbd58b4da |
| SHA1 | db1f4596647c6b053d974695e90595f7c67ac835 |
| SHA256 | 0d7ea22b585bf10b0db95aad5e26bd91f9e198779bf3b003cfbe1e4bea5d80fc |
| SHA512 | 6928464c3768062e3fdbfe1c78eb9d621f44eac158ead69a11c00ca94f16778cd52098d6bb9dbae5f603d8d8024012eef3cf6dd7bcf49bb612b56d9502fd6b66 |
memory/1880-22-0x000000001D1C0000-0x000000001D1D6000-memory.dmp
memory/1880-24-0x000000001BE10000-0x000000001BE22000-memory.dmp
memory/1880-25-0x000000001D1F0000-0x000000001D208000-memory.dmp
memory/1880-26-0x000000001BD70000-0x000000001BD80000-memory.dmp
memory/1880-27-0x000000001BE90000-0x000000001BE98000-memory.dmp
memory/1880-28-0x00007FF9501E0000-0x00007FF950B81000-memory.dmp
memory/1880-29-0x00000000017D0000-0x00000000017E0000-memory.dmp
memory/1880-30-0x00007FF9501E0000-0x00007FF950B81000-memory.dmp