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| File name: | v2.exe |
| Full analysis: | https://app.any.run/tasks/6381d1da-7c9c-42fa-8913-0d98f8a346b3 |
| Verdict: | Malicious activity |
| Threats: | Orcus is a modular Remote Access Trojan with some unusual functions. This RAT enables attackers to create plugins using a custom development library and offers a robust core feature set that makes it one of the most dangerous malicious programs in its class. |
| Analysis date: | June 12, 2019, 06:38:06 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | FF5D24248FDF263A9A0F982AB53B6F3D |
| SHA1: | 904874142BB4EB7B6FFB223BE8C391D6D48C854A |
| SHA256: | 3B464FC818C6E83046DA8918C3517CD6734DB03C885749087A3D85195C3935BE |
| SSDEEP: | 24576:7FJhYySVWkBdqz5XAFHK2XhdaNmqJmVHqzwVKvKZn1E:BJAVWoqz5wFHK2naNjtwVgGW |
MALICIOUS
Changes the autorun value in the registry
- v2.exe (PID: 3380)
Loads the Task Scheduler COM API
- Regasm.exe (PID: 3876)
Orcus was detected
- Regasm.exe (PID: 3876)
Orcus RAT was detected
- Skype.exe (PID: 3724)
Application was dropped or rewritten from another process
- Skype.exe (PID: 3724)
- Skype.exe (PID: 1684)
SUSPICIOUS
Starts itself from another location
- v2.exe (PID: 3380)
Executable content was dropped or overwritten
- v2.exe (PID: 3380)
- Regasm.exe (PID: 3876)
Reads Environment values
- Regasm.exe (PID: 3876)
Creates files in the user directory
- Regasm.exe (PID: 3876)
Application launched itself
- Skype.exe (PID: 3724)
Executed via Task Scheduler
- Regasm.exe (PID: 3904)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| AssemblyVersion: | 0.0.0.0 |
|---|---|
| ProductVersion: | 0.0.0.0 |
| OriginalFileName: | v2.exe |
| LegalCopyright: | |
| InternalName: | v2.exe |
| FileVersion: | 0.0.0.0 |
| FileDescription: | |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 0.0.0.0 |
| FileVersionNumber: | 0.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xec0ae |
| UninitializedDataSize: | - |
| InitializedDataSize: | 2048 |
| CodeSize: | 958976 |
| LinkerVersion: | 11 |
| PEType: | PE32 |
| TimeStamp: | 2019:06:12 08:37:50+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 12-Jun-2019 06:37:50 |
| FileDescription: | - |
| FileVersion: | 0.0.0.0 |
| InternalName: | v2.exe |
| LegalCopyright: | - |
| OriginalFilename: | v2.exe |
| ProductVersion: | 0.0.0.0 |
| Assembly Version: | 0.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 12-Jun-2019 06:37:50 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x000EA0B4 | 0x000EA200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.99794 |
.rsrc | 0x000EE000 | 0x000004C8 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.68491 |
.reloc | 0x000F0000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
39
Monitored processes
6
Malicious processes
4
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 3380 | "C:\Users\admin\AppData\Local\Temp\v2.exe" | C:\Users\admin\AppData\Local\Temp\v2.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 0.0.0.0 | ||||
| 3508 | "C:\Users\admin\AppData\Local\Temp\顾的顾望望.exe" | C:\Users\admin\AppData\Local\Temp\顾的顾望望.exe | — | v2.exe |
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 0.0.0.0 | ||||
| 3876 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | 顾的顾望望.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.6.1055.0 built by: NETFXREL2 | ||||
| 3904 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | — | taskeng.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 | ||||
| 3724 | "C:\Users\admin\AppData\Roaming\Skype.exe" /launchSelfAndExit "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" 3876 /protectFile | C:\Users\admin\AppData\Roaming\Skype.exe | Regasm.exe | |
User: admin Integrity Level: MEDIUM Exit code: 1684 Version: 1.0.0.0 | ||||
| 1684 | "C:\Users\admin\AppData\Roaming\Skype.exe" /watchProcess "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" 3876 "/protectFile" | C:\Users\admin\AppData\Roaming\Skype.exe | — | Skype.exe |
User: admin Integrity Level: MEDIUM Version: 1.0.0.0 | ||||
Total events
1 141
Read events
1 118
Write events
23
Delete events
0
Modification events
| (PID) Process: | (3380) v2.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 顾的顾望望.exe |
Value: C:\Users\admin\AppData\Local\Temp\顾的顾望望.exe | |||
| (PID) Process: | (3380) v2.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3380) v2.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3876) Regasm.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3876) Regasm.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3876) Regasm.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3724) Skype.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3724) Skype.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
Executable files
2
Suspicious files
4
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Cab471E.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Tar471F.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Cab473F.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Tar4740.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Cab47DE.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\Tar47DF.tmp | — | |
MD5:— | SHA256:— | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 | compressed | |
MD5:41577A5AB6A7D917CDDEEDDC2EF52D53 | SHA256:695FCBF6D5B0A83F6671EA2063AA9E2D45D263A108E826F21186B4A7F05925FF | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 | binary | |
MD5:6802395C308C83F328A929064D13C293 | SHA256:11678A97DBC052093C852D502EBECCA803025B3A75F71215D8D9385385FECCB6 | |||
| 3380 | v2.exe | C:\Users\admin\AppData\Local\Temp\顾的顾望望.exe | executable | |
MD5:FF5D24248FDF263A9A0F982AB53B6F3D | SHA256:3B464FC818C6E83046DA8918C3517CD6734DB03C885749087A3D85195C3935BE | |||
| 3876 | Regasm.exe | C:\Users\admin\AppData\Roaming\Skype.exe.config | xml | |
MD5:A2B76CEA3A59FA9AF5EA21FF68139C98 | SHA256:F99EF5BF79A7C43701877F0BB0B890591885BB0A3D605762647CC8FFBF10C839 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3876 | Regasm.exe | GET | 200 | 205.185.216.10:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 56.2 Kb | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3876 | Regasm.exe | 205.185.216.10:80 | www.download.windowsupdate.com | Highwinds Network Group, Inc. | US | whitelisted |
3876 | Regasm.exe | 199.195.250.222:9161 | — | FranTech Solutions | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.download.windowsupdate.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3876 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Observed Malicious SSL Certificate (Orcus RAT) |
3876 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Observed Malicious SSL Certificate (Orcus RAT) |
3876 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Malicious SSL connection (Orcus RAT) |
1 ETPRO signatures available at the full report