| File name: | Doc.exe |
| Full analysis: | https://app.any.run/tasks/2b893bf7-7ac4-4570-983d-f0cdb1e04fb1 |
| 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 15, 2019, 16:37:35 |
| 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, UPX compressed |
| MD5: | 5F923BC3D7FC4AB4D2573A47102840EF |
| SHA1: | DF1A41765B762B9D1FEF638037AFAF9D430C996E |
| SHA256: | 3B781F8665E1E825E803675600971F3294B5C2351FDD1C508D280B2ABD3FF694 |
| SSDEEP: | 12288:AquErHF6xC9D6DmR1J98w4oknqO/CyQfWj+IF/+iHp85If+80q0yyBI4EG6mbz:Rrl6kD68JmlokQfQYW0Asqly24nbz |
MALICIOUS
Changes the autorun value in the registry
- Doc.exe (PID: 1360)
NanoCore was detected
- RegAsm.exe (PID: 2644)
Connects to CnC server
- RegAsm.exe (PID: 2644)
SUSPICIOUS
Creates files in the user directory
- Doc.exe (PID: 1360)
- RegAsm.exe (PID: 2644)
Executable content was dropped or overwritten
- Doc.exe (PID: 1360)
INFO
Creates files in the user directory
- WINWORD.EXE (PID: 312)
Reads Microsoft Office registry keys
- WINWORD.EXE (PID: 312)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | UPX compressed Win32 Executable (39.3) |
|---|---|---|
| .exe | | | Win32 EXE Yoda's Crypter (38.6) |
| .dll | | | Win32 Dynamic Link Library (generic) (9.5) |
| .exe | | | Win32 Executable (generic) (6.5) |
| .exe | | | Generic Win/DOS Executable (2.9) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2019:05:15 15:34:54+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 12 |
| CodeSize: | 352256 |
| InitializedDataSize: | 430080 |
| UninitializedDataSize: | 950272 |
| EntryPoint: | 0x13e270 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Dynamic link library |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| FileDescription: | FirstLogonAnim |
| OriginalFileName: | bootim |
| CompanyName: | bcd |
| FileVersion: | 870.4.769.258 |
| LegalCopyright: | ssh |
| ProductName: | activeds |
| ProductVersion: | 199.874.395.583 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 15-May-2019 13:34:54 |
| Detected languages: |
|
| FileDescription: | FirstLogonAnim |
| OriginalFilename: | bootim |
| CompanyName: | bcd |
| FileVersion: | 870.4.769.258 |
| LegalCopyright: | ssh |
| ProductName: | activeds |
| ProductVersion: | 199.874.395.583 |
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: | 0x00000110 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 15-May-2019 13:34:54 |
| 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 |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x000E8000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x000E9000 | 0x00056000 | 0x00055600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.93528 |
.rsrc | 0x0013F000 | 0x00069000 | 0x00069000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.64538 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.40026 | 1007 | Latin 1 / Western European | English - United Kingdom | RT_MANIFEST |
2 | 2.05883 | 296 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
3 | 2.25499 | 296 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
4 | 3.05765 | 67624 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
7 | 3.34702 | 1428 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
8 | 3.2817 | 1674 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
9 | 3.28849 | 1168 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
10 | 3.28373 | 1532 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
11 | 3.26322 | 1628 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
12 | 3.25812 | 1126 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
Imports
ADVAPI32.dll |
COMCTL32.dll |
COMDLG32.dll |
GDI32.dll |
IPHLPAPI.DLL |
KERNEL32.DLL |
MPR.dll |
OLEAUT32.dll |
PSAPI.DLL |
SHELL32.dll |
Total processes
37
Monitored processes
4
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 312 | "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\internationalaround.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
| |||||||||||||||
| 1360 | "C:\Users\admin\AppData\Local\Temp\Doc.exe" | C:\Users\admin\AppData\Local\Temp\Doc.exe | explorer.exe | ||||||||||||
User: admin Company: bcd Integrity Level: MEDIUM Description: FirstLogonAnim Exit code: 0 Version: 870.4.769.258 Modules
| |||||||||||||||
| 2644 | "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | Doc.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 2.0.50727.5420 (Win7SP1.050727-5400) Modules
| |||||||||||||||
| 3836 | C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503} | C:\Windows\system32\DllHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
762
Read events
702
Write events
48
Delete events
12
Modification events
| (PID) Process: | (1360) Doc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows |
| Operation: | delete value | Name: | Load |
Value: | |||
| (PID) Process: | (1360) Doc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows |
| Operation: | write | Name: | Load |
Value: C:\Users\admin\AppData\Roaming\BrokerLib\apprepapi.exe | |||
| (PID) Process: | (3836) DllHost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication |
| Operation: | write | Name: | Name |
Value: DllHost.exe | |||
| (PID) Process: | (3836) DllHost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows Photo Viewer\Viewer |
| Operation: | write | Name: | MainWndPos |
Value: 6000000034000000A00400008002000000000000 | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | write | Name: | n87 |
Value: 6E38370038010000010000000000000000000000 | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: On | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | WORDFiles |
Value: 1320091679 | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | ProductFiles |
Value: 1320091792 | |||
| (PID) Process: | (312) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | ProductFiles |
Value: 1320091793 | |||
Executable files
1
Suspicious files
2
Text files
3
Unknown types
5
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\CVR5CAF.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{2A960083-4B49-4A42-88ED-06C5E386A950}.tmp | — | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{85AA5C6D-97C3-44A6-BE25-C77458DC5F75}.tmp | — | |
MD5:— | SHA256:— | |||
| 2644 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | text | |
MD5:— | SHA256:— | |||
| 1360 | Doc.exe | C:\Users\admin\AppData\Roaming\BrokerLib\apprepapi.exe | executable | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dat | text | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm | pgc | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\Desktop\~$ternationalaround.rtf | pgc | |
MD5:— | SHA256:— | |||
| 312 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\internationalaround.rtf.LNK | lnk | |
MD5:— | SHA256:— | |||
| 2644 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.dat | binary | |
MD5:653DDDCB6C89F6EC51F3DDC0053C5914 | SHA256:83B9CAE66800C768887FB270728F6806CBEBDEAD9946FA730F01723847F17FF9 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
6
DNS requests
3
Threats
88
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 |
|---|---|---|---|---|---|---|
2644 | RegAsm.exe | 185.244.31.120:7019 | sunnyslock.publicvm.com | — | — | malicious |
— | — | 8.8.8.8:53 | — | Google Inc. | US | malicious |
2644 | RegAsm.exe | 8.8.8.8:53 | — | Google Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
sunnyslock.publicvm.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2644 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
2644 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 64B |
2644 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 64B |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
2644 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 64B |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
2644 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
45 ETPRO signatures available at the full report