Analysis Overview
SHA256
9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16
Threat Level: Known bad
The file 9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16 was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus main payload
Orcurs Rat Executable
Drops desktop.ini file(s)
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-02-08 01:17
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
2024-02-08 01:17
Reported
2024-02-08 01:19
Platform
win7-20231215-en
Max time kernel
121s
Max time network
124s
Command Line
Signatures
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\Boot\err_bff5c852ae7b4868a2aa18ea8de24aa3.dat | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe
"C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.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\wzp3zi35.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\RES50CF.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC50CE.tmp"
Network
Files
memory/2288-0-0x000000001AEB0000-0x000000001AF0C000-memory.dmp
memory/2288-1-0x00000000005B0000-0x00000000005BE000-memory.dmp
memory/2288-2-0x000007FEF5A10000-0x000007FEF63AD000-memory.dmp
memory/2288-3-0x000007FEF5A10000-0x000007FEF63AD000-memory.dmp
memory/2288-4-0x0000000002080000-0x0000000002100000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\wzp3zi35.cmdline
| MD5 | 5501784f9d129c6ea19346e71c4ce741 |
| SHA1 | 687d80c0adcfbd22a48b6bdd0c1cfa613c0c5f9f |
| SHA256 | 205214420ad4ff2b7a4557bca09610e32cfd7d662282f52a5ad2c4dfe087e70d |
| SHA512 | dbd3a93908762e1bc54601bee6d1075ddc9873939d7d8895064b8aa160af1d93c79a591dc8e9b2f49f2080582b61c913662c7d1e8dffa43cae8d6a20b23775d6 |
\??\c:\Users\Admin\AppData\Local\Temp\wzp3zi35.0.cs
| MD5 | 250321226bbc2a616d91e1c82cb4ab2b |
| SHA1 | 7cffd0b2e9c842865d8961386ab8fcfac8d04173 |
| SHA256 | ef2707f83a0c0927cfd46b115641b9cae52a41123e4826515b9eeb561785218d |
| SHA512 | bda59ca04cdf254f837f2cec6da55eff5c3d2af00da66537b9ebaa3601c502ae63772f082fd12663b63d537d2e03efe87a3b5746ef25e842aaf1c7d88245b4e1 |
\??\c:\Users\Admin\AppData\Local\Temp\CSC50CE.tmp
| MD5 | c942ef5e94872f168daca1eaf09d2551 |
| SHA1 | f173d36350d9e94f52cc09bfdd5042987191cad7 |
| SHA256 | b91af778274a42ab9de1f778511729babaf8c87145422651e60d359e29e9c0af |
| SHA512 | c94f32a36514c41d8f1a0c84329c4e17602caa8d2d4b61ce5bdc70a18602cd0e71fe0ef3bbd9da7b14069af1c3003a8c4431b46e4a8b7d56aab480716d06a966 |
C:\Users\Admin\AppData\Local\Temp\RES50CF.tmp
| MD5 | 881b68fe84619f5bb0927eccf1b3d7c0 |
| SHA1 | 10ba44092a37b623773168ce799e5daf3241b293 |
| SHA256 | 9fd596d38c4b0ad83138339132df981715c6eb8290adfaf8891a2ab86193d364 |
| SHA512 | 65dba202160643043a80ab93a4976d9d16d99093965595b867705239e9ab9bd229c044b67319ee29cb2ff8e764da057eceb0a694663c13f6d336cb346c2165f7 |
C:\Users\Admin\AppData\Local\Temp\wzp3zi35.dll
| MD5 | 38024dd88ba38de8fe73af47024c3e82 |
| SHA1 | f7658aea9c73fff6281e7812dcf2890525f92cce |
| SHA256 | 751cc146ae351309dc1fe89fc9f05d3b5c0a2b1f7dcb3143892f4bda022211eb |
| SHA512 | 550a4f0b5f60b5dde416bc029186a18b592a5f130db9ce855645545d9b4317d5baf829c5eadefe5800786f389ffc776680e579000c92dcc9cb65f8a4900edae5 |
memory/2288-17-0x0000000002310000-0x0000000002326000-memory.dmp
memory/2288-19-0x00000000005E0000-0x00000000005F2000-memory.dmp
memory/2288-20-0x0000000001F40000-0x0000000001F48000-memory.dmp
memory/2288-21-0x0000000001F50000-0x0000000001F58000-memory.dmp
memory/2288-22-0x0000000002080000-0x0000000002100000-memory.dmp
memory/2288-23-0x000007FEF5A10000-0x000007FEF63AD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-08 01:17
Reported
2024-02-08 01:19
Platform
win10v2004-20231215-en
Max time kernel
93s
Max time network
150s
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\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\Boot\err_bff5c852ae7b4868a2aa18ea8de24aa3.dat | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1632 wrote to memory of 4148 | N/A | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe |
| PID 1632 wrote to memory of 4148 | N/A | C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe |
| PID 4148 wrote to memory of 2644 | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe |
| PID 4148 wrote to memory of 2644 | 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\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.exe
"C:\Users\Admin\AppData\Local\Temp\9f0112d3238fea7397c5641f9e4bda829257030638d12e6c7568f79988e8cc16.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\fvkekqh-.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\RES88D8.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC88C7.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 188.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.178.17.96.in-addr.arpa | udp |
Files
memory/1632-0-0x00007FFD2CE90000-0x00007FFD2D831000-memory.dmp
memory/1632-1-0x0000000001170000-0x0000000001180000-memory.dmp
memory/1632-2-0x000000001B820000-0x000000001B87C000-memory.dmp
memory/1632-5-0x000000001BA00000-0x000000001BA0E000-memory.dmp
memory/1632-6-0x00007FFD2CE90000-0x00007FFD2D831000-memory.dmp
memory/1632-7-0x000000001BF50000-0x000000001C41E000-memory.dmp
memory/1632-8-0x000000001C4C0000-0x000000001C55C000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\fvkekqh-.cmdline
| MD5 | 59469f8b91afa32d9312365f23cb3e33 |
| SHA1 | ba2832760c8e9cc12783a0d5f0cd83de5dab5dd0 |
| SHA256 | 7cc778b390919acef1945a7544b14f49607e1e109c0d29328423d13fe383fb41 |
| SHA512 | 457f68f09fbf2c80cf6bc634c679519f4e2bb7de81172bb70ab6abbc1da42f0983038fb380052e8d3d5f0a9dbffc0930c8c05dd6741ef2296442439aa97f798b |
\??\c:\Users\Admin\AppData\Local\Temp\fvkekqh-.0.cs
| MD5 | 01fab3e8f12e859e450512e784682bb7 |
| SHA1 | 397b5bad305a19c3e6311905ebf6fcd00063d8b8 |
| SHA256 | bbd4e7ce8fd591746910b8e6ab05a7875a1e382938db0afa5a0d2dc47c477076 |
| SHA512 | 35ec42bce68b3041eff542c96b11952c1b1496a6f3322b23ab72c56751d14f79c17d29ea0b85a7674fe596b8c4ab5a40eef5186d7528d360eee814731549faf1 |
memory/4148-14-0x0000000000970000-0x0000000000980000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\CSC88C7.tmp
| MD5 | fde0d9304947025e996ecf013c9e2fa5 |
| SHA1 | 52e4aadbc64ee23b416551b33f89582d6a118986 |
| SHA256 | 9f924061cc4e12e4a594a2b8e5baa30f8a59016856e80d0fc496802f62b33c29 |
| SHA512 | eb88a4f9c2fd3767b48dfea920b0214c82cd5b7050bcc4fa442f647e4257a7282028e9c0cc19749e22752e68c4e641831983ef57d89e42bbcf340d796ec3cf16 |
C:\Users\Admin\AppData\Local\Temp\RES88D8.tmp
| MD5 | 19ec5637f1301865193199fbeb0a421c |
| SHA1 | d0456bb5d5c7c7c5bc87e2b4caa8d4929ccb77e1 |
| SHA256 | 1ff7b40bf1b6ea332956a702edf8e31d1dffebce4ed975519a1b753b9c154408 |
| SHA512 | 28fb4e206c6a8250b84caf29f9901aa25b05f478ebec66f113586e91e14186aa9d3838ba48a3e27c05326008fc1e5d5aaeae1c149653117d9dce83602ef8b26b |
memory/1632-22-0x000000001BA40000-0x000000001BA56000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\fvkekqh-.dll
| MD5 | d21d2deddc8f1725114427feb571f419 |
| SHA1 | 8a5765d41a113ae1db556ffac221c352892d8157 |
| SHA256 | c3592a3a3f3c804b4c8a3959eb6819a044dfd9d86109ba45be8791bc038ab7cf |
| SHA512 | 8364f3506ee738cd36bd6b21546787b089d43cafea695aad595a5a55624f748afc2043051d6870fbd7c2b68bf150280231161b4c53dc294417db8507706c797d |
memory/1632-24-0x000000001B780000-0x000000001B792000-memory.dmp
memory/1632-25-0x000000001B700000-0x000000001B708000-memory.dmp
memory/1632-26-0x000000001B810000-0x000000001B818000-memory.dmp
memory/1632-27-0x000000001CF10000-0x000000001CF72000-memory.dmp
memory/1632-28-0x000000001D870000-0x000000001DE2A000-memory.dmp
memory/1632-29-0x000000001DE30000-0x000000001DF20000-memory.dmp
memory/1632-30-0x000000001D070000-0x000000001D08E000-memory.dmp
memory/1632-31-0x000000001DF30000-0x000000001DF79000-memory.dmp
memory/1632-32-0x0000000001170000-0x0000000001180000-memory.dmp
memory/1632-33-0x000000001E010000-0x000000001E080000-memory.dmp
memory/1632-34-0x0000000001170000-0x0000000001180000-memory.dmp
memory/1632-36-0x00007FFD2CE90000-0x00007FFD2D831000-memory.dmp