Analysis Overview
SHA256
2d691f32f85f4036a2d2557e6a8712642de87f2e4bd739bc646d2e1868247d91
Threat Level: Known bad
The file 91ce27e029579672316835d3df17f5aa was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcurs Rat Executable
Uses the VBS compiler for execution
Modifies file permissions
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-19 20:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-19 20:18
Reported
2023-12-20 02:07
Platform
win7-20231215-en
Max time kernel
121s
Max time network
150s
Command Line
Signatures
Orcus
Orcurs Rat Executable
| 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 |
Uses the VBS compiler for execution
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2736 set thread context of 2976 | N/A | C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe
"C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 388
C:\Program Files\Java\jre7\bin\javaw.exe
"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\dankclicker.jar"
Network
Files
memory/2736-0-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2736-1-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2736-2-0x0000000000BC0000-0x0000000000C00000-memory.dmp
memory/2976-3-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-5-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-7-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-9-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-13-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2976-16-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-18-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2976-20-0x0000000002010000-0x0000000002050000-memory.dmp
memory/2976-19-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2976-21-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2736-23-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2724-24-0x00000000006C0000-0x00000000006C1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dankclicker.jar
| MD5 | 16731cbd00f8b3a7f83d07434e85b0d6 |
| SHA1 | 54d52dd8aeaa2d232f4ec13d27ff44ae150fa22c |
| SHA256 | d5c5d34e6fc48e09305135d86d6a635fd370f2ae31ee945538259458ff2fa124 |
| SHA512 | c4d891a727e4f3acc4315319e9983e3cd27af4ef2035242107f4d35c253dd726f9f0ba482d200b954a80c110725f11dfba4430fa2bf1d901b869ea7cb690e596 |
memory/1664-34-0x0000000002060000-0x0000000005060000-memory.dmp
memory/1664-35-0x0000000000210000-0x0000000000211000-memory.dmp
memory/2976-38-0x0000000074A30000-0x0000000074FDB000-memory.dmp
memory/2976-39-0x0000000002010000-0x0000000002050000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-19 20:18
Reported
2023-12-20 02:05
Platform
win10v2004-20231215-en
Max time kernel
2s
Max time network
150s
Command Line
Signatures
Orcus
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Uses the VBS compiler for execution
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3344 set thread context of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeRestorePrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe
"C:\Users\Admin\AppData\Local\Temp\91ce27e029579672316835d3df17f5aa.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 784
C:\Program Files\Java\jre-1.8\bin\javaw.exe
"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\dankclicker.jar"
C:\Windows\system32\icacls.exe
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.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 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/3344-0-0x0000000074680000-0x0000000074C31000-memory.dmp
memory/3344-1-0x0000000074680000-0x0000000074C31000-memory.dmp
memory/3344-2-0x00000000014D0000-0x00000000014E0000-memory.dmp
memory/4468-3-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/4468-5-0x0000000074680000-0x0000000074C31000-memory.dmp
memory/4468-6-0x0000000000A50000-0x0000000000A60000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dankclicker.jar
| MD5 | c9b4a232b6d98cb952d32c8b4aef2b80 |
| SHA1 | 028d93dcd68d232ef9dfdae6a52c0dc94b7f5de9 |
| SHA256 | ecd6c802ed9d4bf315bd88aaa216f839d829ed2ba2efc31a5770a32d26610cdb |
| SHA512 | 1b3015efd7cb6dcbc94bf601565faf19ac05f6ae22bd039da0fd52de1f136ec5e2b635008f856c6ccf545a93235e76078a5271524503ec7e116faa4d38f4e514 |
memory/3344-16-0x0000000074680000-0x0000000074C31000-memory.dmp
memory/4468-18-0x0000000074680000-0x0000000074C31000-memory.dmp
memory/1332-23-0x000001AD21280000-0x000001AD22280000-memory.dmp
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
| MD5 | 0edb262268ae18bad4f531765a2342d7 |
| SHA1 | fc003cc1f5d72115534f45b79b53a4b7e46db1f1 |
| SHA256 | 10c2db4ab255bf30213976249d2149459383a95a44ff3de23b11b647c0660e92 |
| SHA512 | 24ed0a2bbaa3ec51fbc51a95ca46248610e4b9fed414f140a1b2e783642404e2a8f3dea6cfda377a4e1308ff58e85ffcd4641bc0115163f96a3be0dc002dd2ff |
memory/1332-31-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-41-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-45-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-49-0x000001AD21280000-0x000001AD22280000-memory.dmp
memory/1332-53-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-63-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-61-0x000001AD21280000-0x000001AD22280000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\JNativeHook-5B1590FA829A6B697D80B3EFB82CAD0DE50F8092.dll
| MD5 | 08c0a8b8e22164b49443cee9096839df |
| SHA1 | 5b1590fa829a6b697d80b3efb82cad0de50f8092 |
| SHA256 | 995d79a1e1ba5ee98e3865dc1ee22d4bd8dc8b19d5ece4b47bf28d14ad913590 |
| SHA512 | c4b9432aff3fe9a0284900e21be627642190e1414057cb6f6938a718872f5d64a56700ae863bb03e6978ea254bf773b69507e4489e2ed6e42d8f3080d26f313d |
memory/1332-75-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-77-0x0000000065E40000-0x0000000065E55000-memory.dmp
memory/1332-78-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-79-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-81-0x000001AD1F9F0000-0x000001AD1F9F1000-memory.dmp
memory/1332-83-0x000001AD21280000-0x000001AD22280000-memory.dmp