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| File name: | wpass.exe |
| Full analysis: | https://app.any.run/tasks/da2f7119-5837-437f-a2fe-30416203ef56 |
| Verdict: | Malicious activity |
| Threats: | NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website. |
| Analysis date: | May 20, 2022, 23:43:24 |
| 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: | C44FDBF93CE77D7F3EDD78F4E56DDEB5 |
| SHA1: | A1C2ABFCEC8CECC72799A3AE8B7FB88EF446A4B3 |
| SHA256: | 639BC1470D85EF42EC4925CC4D57C0A69DD21B95418E0AF074C9C5B40E74B896 |
| SSDEEP: | 3072:izEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HILDuGTziui+IOIB3089u1L5WUF:iLV6Bta6dtJmakIM58NilOIW8uxF |
MALICIOUS
Changes the autorun value in the registry
- wpass.exe (PID: 1780)
Drops executable file immediately after starts
- wpass.exe (PID: 1780)
NANOCORE was detected
- wpass.exe (PID: 1780)
NANOCORE detected by memory dumps
- wpass.exe (PID: 1780)
SUSPICIOUS
Reads the computer name
- wpass.exe (PID: 1780)
Checks supported languages
- wpass.exe (PID: 1780)
Creates files in the user directory
- wpass.exe (PID: 1780)
Reads Environment values
- wpass.exe (PID: 1780)
Drops a file with a compile date too recent
- wpass.exe (PID: 1780)
Executable content was dropped or overwritten
- wpass.exe (PID: 1780)
INFO
Reads the computer name
- WINWORD.EXE (PID: 3252)
Creates files in the user directory
- WINWORD.EXE (PID: 3252)
Manual execution by user
- WINWORD.EXE (PID: 3252)
Checks supported languages
- WINWORD.EXE (PID: 3252)
Reads Microsoft Office registry keys
- WINWORD.EXE (PID: 3252)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Nanocore
(PID) Process(1780) wpass.exe
BackupDnsServer8.8.4.4
PrimaryDnsServer8.8.8.8
UseCustomDnsServerTrue
GCThreshold10485757
MaxPacketSize10485760
BufferSize65559
WanTimeout7979
LanTimeout2500
MutexTimeout5000
KeepAliveTimeout30000
TimeoutInterval5000
RestartDelay5000
ConnectDelay4000
RunDelay0
EnableDebugModeFalse
ActivateAwayModeTrue
PreventSystemSleepTrue
SetCriticalProcessFalse
ClearAccessControlFalse
ClearZoneIdentifierTrue
BypassUserAccountControlFalse
RequestElevationFalse
RunOnStartupTrue
ConnectionPort2264
BackupConnectionHost185.213.155.161
PrimaryConnectionHostcuckoldfarmer.ddns.net
DefaultGroupDefault
Mutex92dc1058-4abc-4d2f-8d44-689318c144be
Version1.2.2.0
BuildTime2021-09-05 17:20:33.925424
KeyboardLoggingTrue
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x1e792 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 90112 |
| CodeSize: | 116736 |
| LinkerVersion: | 6 |
| PEType: | PE32 |
| TimeStamp: | 2015:02:22 01:49:37+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 22-Feb-2015 00:49:37 |
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: | 22-Feb-2015 00:49:37 |
| 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 | 0x0001C798 | 0x0001C800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.59807 |
.reloc | 0x00020000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
.rsrc | 0x00022000 | 0x00015DA8 | 0x00015E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.99809 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 7.99831 | 89424 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
Imports
mscoree.dll |
Total processes
35
Monitored processes
2
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 1780 | "C:\Users\admin\AppData\Local\Temp\wpass.exe" | C:\Users\admin\AppData\Local\Temp\wpass.exe | Explorer.EXE | |
User: admin Integrity Level: MEDIUM Nanocore(PID) Process(1780) wpass.exe BackupDnsServer8.8.4.4 PrimaryDnsServer8.8.8.8 UseCustomDnsServerTrue GCThreshold10485757 MaxPacketSize10485760 BufferSize65559 WanTimeout7979 LanTimeout2500 MutexTimeout5000 KeepAliveTimeout30000 TimeoutInterval5000 RestartDelay5000 ConnectDelay4000 RunDelay0 EnableDebugModeFalse ActivateAwayModeTrue PreventSystemSleepTrue SetCriticalProcessFalse ClearAccessControlFalse ClearZoneIdentifierTrue BypassUserAccountControlFalse RequestElevationFalse RunOnStartupTrue ConnectionPort2264 BackupConnectionHost185.213.155.161 PrimaryConnectionHostcuckoldfarmer.ddns.net DefaultGroupDefault Mutex92dc1058-4abc-4d2f-8d44-689318c144be Version1.2.2.0 BuildTime2021-09-05 17:20:33.925424 KeyboardLoggingTrue | ||||
| 3252 | "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\executivepanel.rtf" | C:\Program Files\Microsoft Office\Office14\WINWORD.EXE | — | Explorer.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Word Version: 14.0.6024.1000 | ||||
Total events
2 964
Read events
2 658
Write events
68
Delete events
33
Modification events
| (PID) Process: | (1780) wpass.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | TCP Monitor |
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | write | Name: | l&= |
Value: 6C263D00B40C0000010000000000000000000000 | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1041 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1046 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1036 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1031 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1040 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1049 |
Value: Off | |||
| (PID) Process: | (3252) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 3082 |
Value: Off | |||
Executable files
1
Suspicious files
0
Text files
2
Unknown types
4
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3252 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\CVRFADC.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 1780 | wpass.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | text | |
MD5:56E32711D36D26935D5CBBE5274A9705 | SHA256:CA51D0026662A3C43577E75A991A909EFDF63551D49B3CD2F8F14C970F200464 | |||
| 3252 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\executivepanel.rtf.LNK | lnk | |
MD5:55E944644E28DD89549D02D33E52BE43 | SHA256:36B836A9165F6A0EA98BD5FB55D46E39EA103E165355FA8145ED9C441A8138FB | |||
| 3252 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm | pgc | |
MD5:7E1FFD344C836924143F5A2C35E4BADF | SHA256:82C42D2135D1B9ED0FE3C5A7845AF8DC26306620E2340128D7F7F4DD1A2EDEC7 | |||
| 1780 | wpass.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | executable | |
MD5:C44FDBF93CE77D7F3EDD78F4E56DDEB5 | SHA256:639BC1470D85EF42EC4925CC4D57C0A69DD21B95418E0AF074C9C5B40E74B896 | |||
| 3252 | WINWORD.EXE | C:\Users\admin\Desktop\~$ecutivepanel.rtf | pgc | |
MD5:09810DAA8E7A6E1D9CF31451A1BBCF78 | SHA256:83D8824BA9C84175F5244652DAF8B7AD8388FC20870F6BDAD33B3E2BA0980AB4 | |||
| 3252 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dat | ini | |
MD5:760488432D667457FEA35289671702E7 | SHA256:0162DE34BFC0A398CC3B513BC1315EBE8CC5D49C17020F4AD28C436689B5B9B2 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
12
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 |
|---|---|---|---|---|---|---|
1780 | wpass.exe | 185.65.134.179:2264 | cuckoldfarmer.ddns.net | 31173 Services AB | NL | malicious |
— | — | 185.213.155.161:2264 | — | 31173 Services AB | SE | malicious |
1780 | wpass.exe | 185.213.155.161:2264 | — | 31173 Services AB | SE | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
cuckoldfarmer.ddns.net |
| malicious |
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1780 | wpass.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
1780 | wpass.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
1780 | wpass.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |