| File name: | RuntimeService.exe |
| Full analysis: | https://app.any.run/tasks/4748a110-a496-4637-8e98-3dbcef2cb64b |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | April 20, 2021, 18:25:02 |
| 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: | 33EE38509FEDE1E6B10E1135EA10A340 |
| SHA1: | 777AE3F5389C771EBCFB72A7DE368AB00BBCABD4 |
| SHA256: | 14A205B615868F273380638B29B6FE33E8072BD40E0302E37219C313B79D3E3E |
| SSDEEP: | 768:euigNTgoHzBWUZM9rmo2qrW97vvNK+uPGK3PIEVqA0bGMl1iUNDqY8UjZBDZgx:euigNTgso2f7fuPrwEMLbGMTis8UHdgx |
| .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) |
| AssemblyVersion: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| ProductName: | - |
| OriginalFileName: | Stub.exe |
| LegalTrademarks: | - |
| LegalCopyright: | - |
| InternalName: | Stub.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | - |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xd0be |
| UninitializedDataSize: | - |
| InitializedDataSize: | 2560 |
| CodeSize: | 45568 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2020:05:10 07:24:51+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-May-2020 05:24:51 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Stub.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | Stub.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
| 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 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 10-May-2020 05:24:51 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x0000B0C4 | 0x0000B200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.6285 |
.rsrc | 0x0000E000 | 0x000007FF | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.88507 |
.reloc | 0x00010000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.22615 | 1171 | UNKNOWN | UNKNOWN | RT_MANIFEST |
mscoree.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1060 | "C:\Users\admin\AppData\Local\Temp\RuntimeService.exe" | C:\Users\admin\AppData\Local\Temp\RuntimeService.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2264 | cmd /c ""C:\Users\admin\AppData\Local\Temp\tmp8C4D.tmp.bat"" | C:\Windows\system32\cmd.exe | — | RuntimeService.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2620 | timeout 3 | C:\Windows\system32\timeout.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: timeout - pauses command processing Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 4056 | "C:\Users\admin\AppData\Roaming\RuntimeService1.exe" | C:\Users\admin\AppData\Roaming\RuntimeService1.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\p2pcollab.dll,-8042 |
Value: Peer to Peer Trust | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\qagentrt.dll,-10 |
Value: System Health Authentication | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\dnsapi.dll,-103 |
Value: Domain Name System (DNS) Server Trust | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\System32\fveui.dll,-843 |
Value: BitLocker Drive Encryption | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\System32\fveui.dll,-844 |
Value: BitLocker Data Recovery Agent | |||
| (PID) Process: | (1060) RuntimeService.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | RuntimeService1 |
Value: "C:\Users\admin\AppData\Roaming\RuntimeService1.exe" | |||
| (PID) Process: | (4056) RuntimeService1.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\CabF817.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\TarF818.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\CabF838.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\TarF839.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\CabF8D7.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\TarF8D8.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\CabF946.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\TarF947.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\CabF987.tmp | — | |
MD5:— | SHA256:— | |||
| 4056 | RuntimeService1.exe | C:\Users\admin\AppData\Local\Temp\TarF988.tmp | — | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4056 | RuntimeService1.exe | GET | 304 | 93.184.221.240:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 57.2 Kb | whitelisted |
4056 | RuntimeService1.exe | GET | 200 | 93.184.221.240:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 57.2 Kb | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4056 | RuntimeService1.exe | 193.161.193.99:27226 | mattroll-27226.portmap.host | OOO Bitree Networks | RU | malicious |
4056 | RuntimeService1.exe | 93.184.221.240:80 | www.download.windowsupdate.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
4056 | RuntimeService1.exe | 193.161.193.99:1448 | mattroll-27226.portmap.host | OOO Bitree Networks | RU | malicious |
Domain | IP | Reputation |
|---|---|---|
mattroll-27226.portmap.host |
| malicious |
www.download.windowsupdate.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
1040 | svchost.exe | Potential Corporate Privacy Violation | ET POLICY DNS Query to a Reverse Proxy Service Observed |
4056 | RuntimeService1.exe | A Network Trojan was detected | ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server) |