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| File name: | Server.exe |
| Full analysis: | https://app.any.run/tasks/f4a5ae8c-a6ff-4d8d-9909-afae0c4675a9 |
| Verdict: | Malicious activity |
| Analysis date: | January 11, 2019, 09:55:10 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | C7651F2CEEEB94E20BE00130E85A3215 |
| SHA1: | 776B47E30EA3B7DD7D6C56642B1E256C8E2C706F |
| SHA256: | A19CF43C4C4C8E32AEC6BEFA0D77C42B1DBEF30712A154A8D3CBDFE02741D207 |
| SSDEEP: | 6144:qAptb/xI045S8JhVjzRa1CCk+y8TiF888ZubJGWzQ9k:Xptb/xIpSo/zRa1CCG8TiFxbGS |
MALICIOUS
Changes the autorun value in the registry
- Server.exe (PID: 2908)
- Windows Update.exe (PID: 2928)
Runs app for hidden code execution
- Windows Update.exe (PID: 2928)
SUSPICIOUS
Creates files in the user directory
- Server.exe (PID: 2908)
- Windows Update.exe (PID: 2928)
Starts CMD.EXE for commands execution
- Windows Update.exe (PID: 2928)
Executable content was dropped or overwritten
- Server.exe (PID: 2908)
Starts itself from another location
- Server.exe (PID: 2908)
Connects to unusual port
- Windows Update.exe (PID: 2928)
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
| AssemblyVersion: | 1.5.0.4 |
|---|---|
| ProductVersion: | 1.5.0.4 |
| ProductName: | Microsoft Windows Operating System |
| OriginalFileName: | AssemblyChange.exe |
| LegalCopyright: | Microsoft Corperation. All rights reserved |
| InternalName: | AssemblyChange.exe |
| FileVersion: | 1.5.0.4 |
| FileDescription: | Windows Desktop Gadgets |
| CompanyName: | Microsoft |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.5.0.4 |
| FileVersionNumber: | 1.5.0.4 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x4faaa |
| UninitializedDataSize: | - |
| InitializedDataSize: | 6656 |
| CodeSize: | 318464 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2014:09:07 17:00:29+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 07-Sep-2014 15:00:29 |
| CompanyName: | Microsoft |
| FileDescription: | Windows Desktop Gadgets |
| FileVersion: | 1.5.0.4 |
| InternalName: | AssemblyChange.exe |
| LegalCopyright: | Microsoft Corperation. All rights reserved |
| OriginalFilename: | AssemblyChange.exe |
| ProductName: | Microsoft Windows Operating System |
| ProductVersion: | 1.5.0.4 |
| Assembly Version: | 1.5.0.4 |
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: | 07-Sep-2014 15:00:29 |
| 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 | 0x0004DAB0 | 0x0004DC00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.07351 |
.rsrc | 0x00050000 | 0x000017A1 | 0x00001800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.61068 |
.reloc | 0x00052000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
0 | 4.99903 | 2036 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
1 | 4.97417 | 2861 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
34
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2908 | "C:\Users\admin\AppData\Local\Temp\Server.exe" | C:\Users\admin\AppData\Local\Temp\Server.exe | explorer.exe | |
User: admin Company: Microsoft Integrity Level: MEDIUM Description: Windows Desktop Gadgets Exit code: 4294967295 Version: 1.5.0.4 | ||||
| 2928 | "C:\Users\admin\AppData\Roaming\RC\Windows Update.exe" | C:\Users\admin\AppData\Roaming\RC\Windows Update.exe | Server.exe | |
User: admin Company: Microsoft Integrity Level: MEDIUM Description: Windows Desktop Gadgets Version: 1.5.0.4 | ||||
| 3704 | "cmd" | C:\Windows\system32\cmd.exe | — | Windows Update.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) | ||||
Total events
410
Read events
400
Write events
10
Delete events
0
Modification events
| (PID) Process: | (2908) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2908) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2908) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | AdobeUpdate |
Value: C:\Users\admin\AppData\Roaming\RC\Windows Update.exe | |||
| (PID) Process: | (2928) Windows Update.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2928) Windows Update.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2928) Windows Update.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | AdobeUpdate |
Value: C:\Users\admin\AppData\Roaming\RC\Windows Update.exe | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
2
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2928 | Windows Update.exe | C:\Users\admin\AppData\Roaming\IsolatedStorage\Url.o4d4bjolc0rsxbtqfzcoefj5xjnz35ji\identity.dat | pi2 | |
MD5:B656063BE96F106B17BA930D35DC5DFB | SHA256:33FD40F6E2AF013849ECB6D12C1C869F364675883367735E1741A528D1B16981 | |||
| 2908 | Server.exe | C:\Users\admin\AppData\Roaming\IsolatedStorage\Url.zs0nmk5wcced4znyqe4i4capa41binkp\identity.dat | pi2 | |
MD5:8FCC9B41FD20791058EDA6DDE4E07AFA | SHA256:E5E14B5BF09CB42D5C0797B2064399E5EC247FDDEFE866062F349B3A81DABB55 | |||
| 2908 | Server.exe | C:\Users\admin\AppData\Roaming\RC\Windows Update.exe | executable | |
MD5:C7651F2CEEEB94E20BE00130E85A3215 | SHA256:A19CF43C4C4C8E32AEC6BEFA0D77C42B1DBEF30712A154A8D3CBDFE02741D207 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
DNS requests
4
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2928 | Windows Update.exe | 213.230.76.87:9001 | — | Uzbektelekom Joint Stock Company | UZ | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
dns.msftncsi.com |
| shared |