| File name: | Document.exe |
| Full analysis: | https://app.any.run/tasks/deb2aa47-13ea-4cf4-8c3c-2492273ea587 |
| 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: | March 31, 2020, 06:22:57 |
| 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: | 8AEBBB45F3B2FA169AB9E270F7E59B30 |
| SHA1: | E33C85C51D95756964C1BBDFE596984D00FE0B3B |
| SHA256: | 660E3CC8EEAD07B7F2DBDBFD064AA0B33E3082E95F2E602C55BCE0DC3451D987 |
| SSDEEP: | 6144:49VC8hZBvpgcM7s1iS4TllgCpY1pVCoRIxlxHYgB4/zBid9LpC:4HBZpNM7s1iSwllHnomZYgyid9LpC |
MALICIOUS
Uses Task Scheduler to run other applications
- Document.exe (PID: 3952)
Application was dropped or rewritten from another process
- MSBuild.exe (PID: 2560)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 1248)
Changes the autorun value in the registry
- MSBuild.exe (PID: 2560)
Connects to CnC server
- MSBuild.exe (PID: 2560)
NANOCORE was detected
- MSBuild.exe (PID: 2560)
SUSPICIOUS
Executable content was dropped or overwritten
- Document.exe (PID: 3952)
- MSBuild.exe (PID: 2560)
Creates files in the user directory
- Document.exe (PID: 3952)
- MSBuild.exe (PID: 2560)
Connects to unusual port
- MSBuild.exe (PID: 2560)
Reads the BIOS version
- Document.exe (PID: 3952)
INFO
Creates files in the user directory
- WINWORD.EXE (PID: 3720)
Manual execution by user
- taskmgr.exe (PID: 816)
- explorer.exe (PID: 3220)
- WINWORD.EXE (PID: 3720)
Reads Microsoft Office registry keys
- WINWORD.EXE (PID: 3720)
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: | 2020:03:31 07:35:03+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 372736 |
| InitializedDataSize: | 1536 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x5cf0e |
| 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: | HighDpiDemo |
| FileVersion: | 1.0.0.0 |
| InternalName: | ssYPysyBluhlo.exe |
| LegalCopyright: | Copyright © 2016 |
| LegalTrademarks: | - |
| OriginalFileName: | ssYPysyBluhlo.exe |
| ProductName: | HighDpiDemo |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 31-Mar-2020 05:35:03 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | HighDpiDemo |
| FileVersion: | 1.0.0.0 |
| InternalName: | ssYPysyBluhlo.exe |
| LegalCopyright: | Copyright © 2016 |
| LegalTrademarks: | - |
| OriginalFilename: | ssYPysyBluhlo.exe |
| ProductName: | HighDpiDemo |
| 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: | 31-Mar-2020 05:35:03 |
| 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 | 0x0005AF14 | 0x0005B000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.83406 |
.rsrc | 0x0005E000 | 0x00000390 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 2.90505 |
.reloc | 0x00060000 | 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 | 3.30399 | 820 | UNKNOWN | UNKNOWN | RT_VERSION |
Imports
mscoree.dll |
Total processes
45
Monitored processes
6
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 816 | "C:\Windows\system32\taskmgr.exe" /4 | C:\Windows\system32\taskmgr.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Task Manager Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1248 | "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yaEdTZ" /XML "C:\Users\admin\AppData\Local\Temp\tmp47CA.tmp" | C:\Windows\System32\schtasks.exe | — | Document.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
| |||||||||||||||
| 2560 | "{path}" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe | Document.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 0 Version: 2.0.50727.5420 built by: Win7SP1 Modules
| |||||||||||||||
| 3220 | "C:\Windows\explorer.exe" | C:\Windows\explorer.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3720 | "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\machinelondon.rtf" | C:\Program Files\Microsoft Office\Office14\WINWORD.EXE | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Word Exit code: 0 Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 3952 | "C:\Users\admin\AppData\Local\Temp\Document.exe" | C:\Users\admin\AppData\Local\Temp\Document.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: HighDpiDemo Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
Total events
1 526
Read events
824
Write events
559
Delete events
143
Modification events
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | write | Name: | |`. |
Value: 7C602E00880E0000010000000000000000000000 | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1041 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1046 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1036 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1031 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1040 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1049 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 3082 |
Value: Off | |||
| (PID) Process: | (3720) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1042 |
Value: Off | |||
Executable files
2
Suspicious files
4
Text files
3
Unknown types
5
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3720 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\CVREC4C.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 2560 | MSBuild.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.bak | — | |
MD5:— | SHA256:— | |||
| 3952 | Document.exe | C:\Users\admin\AppData\Roaming\yaEdTZ.exe | executable | |
MD5:— | SHA256:— | |||
| 3720 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm | pgc | |
MD5:— | SHA256:— | |||
| 3720 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dat | ini | |
MD5:— | SHA256:— | |||
| 2560 | MSBuild.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | binary | |
MD5:— | SHA256:— | |||
| 3720 | WINWORD.EXE | C:\Users\admin\Desktop\~$chinelondon.rtf | pgc | |
MD5:— | SHA256:— | |||
| 3720 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\machinelondon.rtf.LNK | lnk | |
MD5:— | SHA256:— | |||
| 2560 | MSBuild.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | executable | |
MD5:— | SHA256:— | |||
| 3952 | Document.exe | C:\Users\admin\AppData\Local\Temp\tmp47CA.tmp | xml | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
0
Threats
37
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 |
|---|---|---|---|---|---|---|
2560 | MSBuild.exe | 172.111.188.199:8826 | — | M247 Ltd | DE | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
2560 | MSBuild.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore.RAT |
2560 | MSBuild.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
22 ETPRO signatures available at the full report