| File name: | nex.exe |
| Full analysis: | https://app.any.run/tasks/b897b0ac-1795-4209-b150-796673b17f12 |
| 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: | December 29, 2021, 08:02:34 |
| OS: | Windows 10 Professional (build: 16299, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | FEFBF3A6998A24CE1D180ED9F4BA88CA |
| SHA1: | BD0C5BDB67446CA6D927B6F34F71336A5EDB1977 |
| SHA256: | F5EC089660FF7654E490F777F1474DE95854B471CD7B5820C3325B4F611FC6DC |
| SSDEEP: | 196608:bgrOn7FE6icOcKTQWwR9CtmwRgWn7v/IZ:bgt7c+twTnAgYS |
MALICIOUS
Drops executable file immediately after starts
- nex.exe (PID: 1232)
Application was dropped or rewritten from another process
- VPDN_LU.exe (PID: 2308)
Loads dropped or rewritten executable
- VPDN_LU.exe (PID: 2308)
Changes the autorun value in the registry
- VPDN_LU.exe (PID: 2308)
Uses SVCHOST.EXE for hidden code execution
- VPDN_LU.exe (PID: 2308)
SUSPICIOUS
Checks supported languages
- nex.exe (PID: 920)
- nex.exe (PID: 1232)
- VPDN_LU.exe (PID: 2308)
- conhost.exe (PID: 3076)
Application launched itself
- nex.exe (PID: 920)
Drops a file with a compile date too recent
- nex.exe (PID: 1232)
- VPDN_LU.exe (PID: 2308)
Drops a file with too old compile date
- nex.exe (PID: 1232)
- VPDN_LU.exe (PID: 2308)
Drops a file that was compiled in debug mode
- nex.exe (PID: 1232)
- VPDN_LU.exe (PID: 2308)
Reads the computer name
- nex.exe (PID: 1232)
- VPDN_LU.exe (PID: 2308)
Executable content was dropped or overwritten
- VPDN_LU.exe (PID: 2308)
- nex.exe (PID: 1232)
Creates files in the program directory
- svchost.exe (PID: 4244)
INFO
Checks supported languages
- wusa.exe (PID: 624)
- wusa.exe (PID: 5100)
- svchost.exe (PID: 4244)
Reads the computer name
- wusa.exe (PID: 624)
- wusa.exe (PID: 5100)
- svchost.exe (PID: 4244)
Reads settings of System Certificates
- svchost.exe (PID: 4244)
Reads the software policy settings
- svchost.exe (PID: 4244)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (64.5) |
|---|---|---|
| .scr | | | Windows screen saver (19.6) |
| .exe | | | Win32 Executable (generic) (6.7) |
| .exe | | | Win16/32 Executable Delphi generic (3.1) |
| .exe | | | Generic Win/DOS Executable (2.9) |
EXIF
EXE
| ProductVersion: | 2.0.8 |
|---|---|
| ProductName: | QQMusic |
| OriginalFileName: | QQMusicDownloader.exe |
| LegalCopyright: | Copyright (C) 1998-2017 Tencent. All Rights Reserved |
| InternalName: | QQMusicDownloader.exe |
| FileVersion: | 2.0.8 |
| FileDescription: | QQ音乐下载器 |
| CompanyName: | Tencent |
| CharacterSet: | Unicode |
| LanguageCode: | Chinese (Simplified) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Windows NT 32-bit |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 2.0.8.0 |
| FileVersionNumber: | 2.0.8.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x83a10 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 156160 |
| CodeSize: | 535552 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 1992:06:20 00:22:17+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Jun-1992 22:22:17 |
| Detected languages: |
|
| CompanyName: | Tencent |
| FileDescription: | QQ音乐下载器 |
| FileVersion: | 2.0.8 |
| InternalName: | QQMusicDownloader.exe |
| LegalCopyright: | Copyright (C) 1998-2017 Tencent. All Rights Reserved |
| OriginalFilename: | QQMusicDownloader.exe |
| ProductName: | QQMusic |
| ProductVersion: | 2.0.8 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 11 |
| Time date stamp: | 19-Jun-1992 22:22:17 |
| 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 |
|---|---|---|---|---|---|
CODE | 0x00001000 | 0x00082A58 | 0x00082C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.52189 |
DATA | 0x00084000 | 0x000015FC | 0x00001600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.10141 |
BSS | 0x00086000 | 0x00000FD9 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x00087000 | 0x000026E2 | 0x00002800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.94954 |
.tls | 0x0008A000 | 0x00000024 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rdata | 0x0008B000 | 0x00000018 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 0.199108 |
.reloc | 0x000AF000 | 0x0067BF4C | 0x0067C000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.99994 |
.rsrc | 0x00096000 | 0x00018950 | 0x00018A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 6.37401 |
0x0072B000 | 0x00000F19 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 | |
wwwekuc | 0x0072C000 | 0x00000200 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.20341 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.49918 | 768 | Latin 1 / Western European | Process Default Language | RT_VERSION |
2 | 5.15896 | 9832 | Latin 1 / Western European | Process Default Language | RT_ICON |
3 | 3.57285 | 4392 | Latin 1 / Western European | Process Default Language | RT_ICON |
4 | 4.78954 | 2488 | Latin 1 / Western European | Process Default Language | RT_ICON |
5 | 4.03945 | 1128 | Latin 1 / Western European | Process Default Language | RT_ICON |
6 | 2.89005 | 744 | Latin 1 / Western European | Process Default Language | RT_ICON |
7 | 2.54353 | 296 | Latin 1 / Western European | Process Default Language | RT_ICON |
8 | 4.35478 | 3752 | Latin 1 / Western European | Process Default Language | RT_ICON |
9 | 5.17501 | 2216 | Latin 1 / Western European | Process Default Language | RT_ICON |
10 | 3.47748 | 1384 | Latin 1 / Western European | Process Default Language | RT_ICON |
Imports
advapi32.dll |
comdlg32.dll |
gdi32.dll |
kernel32.dll |
ole32.dll |
oleaut32.dll |
shell32.dll |
user32.dll |
version.dll |
Total processes
101
Monitored processes
10
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 624 | "C:\WINDOWS\SysWOW64\wusa.exe" C:\Users\admin\Desktop\tcmsetup.msu /extract:C:\WINDOWS\SysWOW64\sysprep\ | C:\WINDOWS\SysWOW64\wusa.exe | VPDN_LU.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Update Standalone Installer Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 920 | "C:\Users\admin\Desktop\nex.exe" | C:\Users\admin\Desktop\nex.exe | — | Explorer.EXE | |||||||||||
User: admin Company: Tencent Integrity Level: MEDIUM Description: QQ????? Exit code: 4294967295 Version: 2.0.8 Modules
| |||||||||||||||
| 1232 | "C:\Users\admin\Desktop\nex.exe" | C:\Users\admin\Desktop\nex.exe | nex.exe | ||||||||||||
User: admin Company: Tencent Integrity Level: MEDIUM Description: QQ????? Exit code: 0 Version: 2.0.8 Modules
| |||||||||||||||
| 2188 | "C:\Windows\System32\wusa.exe" C:\Users\admin\Desktop\tapi32.msu /extract:C:\WINDOWS\SysWOW64\sysprep\ | C:\Windows\SysWOW64\wusa.exe | — | VPDN_LU.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Update Standalone Installer Exit code: 3221226540 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2308 | "C:\Users\admin\Desktop\VPDN_LU.exe" | C:\Users\admin\Desktop\VPDN_LU.exe | nex.exe | ||||||||||||
User: admin Company: Symantec Corporation Integrity Level: MEDIUM Description: Symantec AntiVirus Exit code: 0 Version: 10.1.6.6000 Modules
| |||||||||||||||
| 3052 | "C:\Windows\System32\wusa.exe" C:\Users\admin\Desktop\tcmsetup.msu /extract:C:\WINDOWS\SysWOW64\sysprep\ | C:\Windows\SysWOW64\wusa.exe | — | VPDN_LU.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Update Standalone Installer Exit code: 3221226540 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3076 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | \??\C:\WINDOWS\system32\conhost.exe | makecab.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4244 | -u | C:\WINDOWS\SysWOW64\svchost.exe | VPDN_LU.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Host Process for Windows Services Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4760 | "C:\Windows\System32\makecab.exe" C:\WINDOWS\SysWOW64\tcmsetup.exe C:\Users\admin\Desktop\tcmsetup.msu | C:\Windows\SysWOW64\makecab.exe | — | VPDN_LU.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft� Cabinet Maker Exit code: 0 Version: 5.00 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5100 | "C:\WINDOWS\SysWOW64\wusa.exe" C:\Users\admin\Desktop\tapi32.msu /extract:C:\WINDOWS\SysWOW64\sysprep\ | C:\WINDOWS\SysWOW64\wusa.exe | VPDN_LU.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Update Standalone Installer Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
3 513
Read events
3 492
Write events
21
Delete events
0
Modification events
| (PID) Process: | (1232) nex.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (1232) nex.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (1232) nex.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (1232) nex.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2308) VPDN_LU.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2308) VPDN_LU.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2308) VPDN_LU.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2308) VPDN_LU.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2308) VPDN_LU.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | nav |
Value: "C:\ProgramData\nav\nav.exe" | |||
| (PID) Process: | (4244) svchost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\61\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
4
Suspicious files
9
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2308 | VPDN_LU.exe | C:\ProgramData\nav\navlu.dll | executable | |
MD5:— | SHA256:— | |||
| 1232 | nex.exe | C:\Users\admin\Desktop\VPDN_LU.exe | executable | |
MD5:— | SHA256:— | |||
| 1232 | nex.exe | C:\Users\admin\Desktop\navlu.dll | executable | |
MD5:— | SHA256:— | |||
| 4760 | makecab.exe | C:\Users\admin\AppData\Local\Temp\cab_4760_2 | binary | |
MD5:— | SHA256:— | |||
| 4760 | makecab.exe | C:\Users\admin\AppData\Local\Temp\cab_4760_3 | binary | |
MD5:— | SHA256:— | |||
| 4760 | makecab.exe | C:\Users\admin\AppData\Local\Temp\cab_4760_4 | binary | |
MD5:— | SHA256:— | |||
| 4760 | makecab.exe | C:\Users\admin\Desktop\tcmsetup.msu | compressed | |
MD5:— | SHA256:— | |||
| 4760 | makecab.exe | C:\Users\admin\AppData\Local\Temp\cab_4760_5 | binary | |
MD5:— | SHA256:— | |||
| 4244 | svchost.exe | C:\ProgramData\nav\config.ini | text | |
MD5:— | SHA256:— | |||
| 1232 | nex.exe | C:\Users\admin\Desktop\navlu.dll.url | binary | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
14
DNS requests
4
Threats
4
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 |
|---|---|---|---|---|---|---|
4244 | svchost.exe | 23.106.124.116:443 | update.fasterwall.com | — | SG | malicious |
2876 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | Microsoft Corporation | GB | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
update.fasterwall.com |
| malicious |
self.events.data.microsoft.com |
| whitelisted |
dns.msftncsi.com |
| shared |
settings-win.data.microsoft.com |
| whitelisted |
Threats
4 ETPRO signatures available at the full report
Process | Message |
|---|---|
conhost.exe | InitSideBySide failed create an activation context. Error: 1814 |