Analysis Overview
SHA256
ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13
Threat Level: Known bad
The file ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13 was found to be: Known bad.
Malicious Activity Summary
Orcurs Rat Executable
Orcus main payload
Orcus family
Orcus
Orcurs Rat Executable
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Reads data files stored by FTP clients
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-05 01:07
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
2024-12-05 01:07
Reported
2024-12-05 01:09
Platform
win7-20240903-en
Max time kernel
126s
Max time network
122s
Command Line
Signatures
Orcus
Orcus family
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 |
| 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 |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2680 set thread context of 2688 | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
"C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe"
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
"C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {9198994E-BED7-42BA-AD4F-76A9349CAB11} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 10903.client.sudorat.top | udp |
| RU | 185.37.62.158:10903 | 10903.client.sudorat.top | tcp |
| N/A | 127.0.0.1:1111 | tcp |
Files
memory/1964-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp
memory/1964-1-0x0000000001150000-0x000000000144E000-memory.dmp
memory/1964-3-0x0000000073F10000-0x00000000745FE000-memory.dmp
memory/1964-2-0x0000000000470000-0x000000000047E000-memory.dmp
memory/1964-4-0x0000000000620000-0x000000000067C000-memory.dmp
memory/1964-5-0x0000000000AB0000-0x0000000000AC2000-memory.dmp
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
| MD5 | 85f6a170cdf61b577203880677cbfa2e |
| SHA1 | c8a3c321a34fa789e6ed85a48c745b25b99ad00c |
| SHA256 | ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13 |
| SHA512 | aa8637302e6223f7027cbf190d18e352c6daa42ea0427880972fc4bccb3766f7a80005a5bc6accf7b79ea9d28034f65848fdfb6f11a9289e646bb43882dcc974 |
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/2680-17-0x0000000073F10000-0x00000000745FE000-memory.dmp
memory/1964-16-0x0000000073F10000-0x00000000745FE000-memory.dmp
memory/2680-18-0x0000000000B30000-0x0000000000E2E000-memory.dmp
memory/2680-19-0x0000000073F10000-0x00000000745FE000-memory.dmp
memory/2680-20-0x0000000000A70000-0x0000000000A82000-memory.dmp
memory/2680-21-0x0000000002230000-0x000000000227E000-memory.dmp
memory/2688-22-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-31-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2688-34-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2680-35-0x0000000073F10000-0x00000000745FE000-memory.dmp
memory/2688-32-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-28-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-26-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-24-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/2688-38-0x00000000003F0000-0x0000000000402000-memory.dmp
memory/2000-37-0x00000000010A0000-0x000000000139E000-memory.dmp
memory/2688-39-0x0000000000710000-0x0000000000728000-memory.dmp
memory/2688-40-0x00000000008F0000-0x0000000000900000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CabF8C2.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/2688-57-0x0000000004580000-0x000000000458E000-memory.dmp
memory/2688-58-0x0000000004A70000-0x0000000004A72000-memory.dmp
memory/844-60-0x00000000002A0000-0x000000000059E000-memory.dmp
memory/2620-62-0x0000000000E80000-0x000000000117E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-05 01:07
Reported
2024-12-05 01:09
Platform
win10v2004-20241007-en
Max time kernel
126s
Max time network
146s
Command Line
Signatures
Orcus
Orcus family
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2448 set thread context of 1220 | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe |
Enumerates physical storage devices
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\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
"C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe"
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
"C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe"
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10903.client.sudorat.top | udp |
| RU | 185.37.62.158:10903 | 10903.client.sudorat.top | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.62.37.185.in-addr.arpa | udp |
| N/A | 127.0.0.1:1111 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/3084-0-0x0000000074CEE000-0x0000000074CEF000-memory.dmp
memory/3084-1-0x00000000001A0000-0x000000000049E000-memory.dmp
memory/3084-2-0x0000000002930000-0x000000000293E000-memory.dmp
memory/3084-3-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/3084-4-0x0000000004E60000-0x0000000004EBC000-memory.dmp
memory/3084-5-0x00000000057E0000-0x0000000005D84000-memory.dmp
memory/3084-6-0x0000000005230000-0x00000000052C2000-memory.dmp
memory/3084-7-0x00000000056D0000-0x00000000056E2000-memory.dmp
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
| MD5 | 85f6a170cdf61b577203880677cbfa2e |
| SHA1 | c8a3c321a34fa789e6ed85a48c745b25b99ad00c |
| SHA256 | ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13 |
| SHA512 | aa8637302e6223f7027cbf190d18e352c6daa42ea0427880972fc4bccb3766f7a80005a5bc6accf7b79ea9d28034f65848fdfb6f11a9289e646bb43882dcc974 |
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/3084-24-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/2448-23-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/2448-25-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/2448-26-0x0000000006270000-0x00000000062BE000-memory.dmp
memory/2448-31-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/2448-28-0x0000000006BD0000-0x0000000006C6C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\linuxvm.exe.log
| MD5 | 663b8d5469caa4489d463aa9bc18124f |
| SHA1 | e57123a7d969115853ea631a3b33826335025d28 |
| SHA256 | 7b4fa505452f0b8ac74bb31f5a03b13342836318018fb18d224ae2ff11b1a7e8 |
| SHA512 | 45e373295125a629fcc0b19609608d969c9106514918bfac5d6b8e340e407434577b825741b8fa6a043c8f3f5c1a030ba8857da5f4e8ef15a551ce3c5fe03b55 |
memory/1220-33-0x0000000005200000-0x0000000005212000-memory.dmp
memory/1220-34-0x00000000053F0000-0x0000000005408000-memory.dmp
memory/1220-35-0x0000000005A80000-0x0000000005A90000-memory.dmp
memory/1220-36-0x0000000006670000-0x000000000667A000-memory.dmp
memory/1220-39-0x0000000006F10000-0x0000000006F76000-memory.dmp
memory/1220-40-0x00000000075A0000-0x0000000007BB8000-memory.dmp
memory/1220-41-0x0000000007020000-0x0000000007032000-memory.dmp
memory/1220-42-0x0000000007080000-0x00000000070BC000-memory.dmp
memory/1220-43-0x00000000070C0000-0x000000000710C000-memory.dmp
memory/1220-44-0x0000000007250000-0x000000000735A000-memory.dmp
memory/1220-45-0x0000000007BC0000-0x0000000007D82000-memory.dmp
memory/1220-46-0x00000000073A0000-0x00000000073AE000-memory.dmp
memory/1220-47-0x0000000008080000-0x00000000080D0000-memory.dmp