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| File name: | Invoice 8362.exe |
| Full analysis: | https://app.any.run/tasks/9f0cca7a-9fa4-41fc-8a24-d21596f999c9 |
| 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: | August 13, 2019, 19:50:03 |
| 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: | 3C10F0D1F1DEFACD15459BEC4E2CCFDA |
| SHA1: | F12E1FDD414424225E10DB59AF9FAEA52780B077 |
| SHA256: | B9AAF933C680FCAE6E1CBE7FED95D49772C2B64C059A4CB2FB854E4DDF82FFCD |
| SSDEEP: | 24576:rNRtbpOH+CVlnYjCBUdenSks+SvorRjgfjMLfPuixQj:I+GlnY8dSWRjgfjMD2L |
MALICIOUS
Writes to a start menu file
- Invoice 8362.exe (PID: 3876)
NanoCore was detected
- RegAsm.exe (PID: 1536)
Connects to CnC server
- RegAsm.exe (PID: 1536)
SUSPICIOUS
Executable content was dropped or overwritten
- Invoice 8362.exe (PID: 3876)
Creates files in the user directory
- Invoice 8362.exe (PID: 3876)
- RegAsm.exe (PID: 1536)
Starts CHOICE.EXE (used to create a delay)
- cmd.exe (PID: 284)
Starts CMD.EXE for commands execution
- Invoice 8362.exe (PID: 3876)
INFO
No info indicators.
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.) (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: | 0xf0132 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 425472 |
| CodeSize: | 975360 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2019:06:28 12:15:33+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 28-Jun-2019 10:15:33 |
| Detected languages: |
|
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: | 28-Jun-2019 10:15:33 |
| 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 | 0x000EE148 | 0x000EE200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.73351 |
.rsrc | 0x000F2000 | 0x00067A54 | 0x00067C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.67416 |
.reloc | 0x0015A000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
0 | 2.58916 | 76 | Latin 1 / Western European | English - United States | RT_GROUP_ICON |
1 | 4.72297 | 1128 | Latin 1 / Western European | English - United States | RT_ICON |
2 | 4.56085 | 2440 | Latin 1 / Western European | English - United States | RT_ICON |
3 | 4.44828 | 4264 | Latin 1 / Western European | English - United States | RT_ICON |
4 | 4.35068 | 9640 | Latin 1 / Western European | English - United States | RT_ICON |
5 | 7.98652 | 39456 | Latin 1 / Western European | English - United States | RT_ICON |
104 | 7.66966 | 367104 | Latin 1 / Western European | German - Germany | RT_HTML |
Imports
mscoree.dll |
Total processes
38
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 |
|---|---|---|---|---|
| 3876 | "C:\Users\admin\AppData\Local\Temp\Invoice 8362.exe" | C:\Users\admin\AppData\Local\Temp\Invoice 8362.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM | ||||
| 1536 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | Invoice 8362.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.7.3062.0 built by: NET472REL1 | ||||
| 284 | "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\admin\AppData\Local\Temp\Invoice 8362.exe" | C:\Windows\System32\cmd.exe | — | Invoice 8362.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) | ||||
| 3812 | choice /C Y /N /D Y /T 3 | C:\Windows\system32\choice.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Offers the user a choice Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
107
Read events
103
Write events
4
Delete events
0
Modification events
| (PID) Process: | (3876) Invoice 8362.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3876) Invoice 8362.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
Executable files
1
Suspicious files
3
Text files
1
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1536 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | binary | |
MD5:A820D4CBB3F408A3BA679188B8BD8FF0 | SHA256:EE5F873CFB8AB2A9447A5B213FCBF796CE92D59435C7F1029144403FAE06CEBE | |||
| 3876 | Invoice 8362.exe | C:\Users\admin\AppData\Roaming\filename.exe | executable | |
MD5:3C10F0D1F1DEFACD15459BEC4E2CCFDA | SHA256:B9AAF933C680FCAE6E1CBE7FED95D49772C2B64C059A4CB2FB854E4DDF82FFCD | |||
| 3876 | Invoice 8362.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tuda.url | text | |
MD5:F94AFCE955E293AB9851AA4795C576B8 | SHA256:A43840F84DC9DE86FE05F0C7546B4ADA45F2A0A572C82B78EC683F32926F50A9 | |||
| 1536 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.dat | binary | |
MD5:7E8F4A764B981D5B82D1CC49D341E9C6 | SHA256:0BD3AAC12623520C4E2031C8B96B4A154702F36F97F643158E91E987D317B480 | |||
| 1536 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.dat | bs | |
MD5:32D0AAE13696FF7F8AF33B2D22451028 | SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29 | |||
| 1536 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.bin | binary | |
MD5:4E5E92E2369688041CC82EF9650EDED2 | SHA256:F8098A6290118F2944B9E7C842BD014377D45844379F863B00D54515A8A64B48 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
2
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 |
|---|---|---|---|---|---|---|
1536 | RegAsm.exe | 8.8.8.8:53 | — | Google Inc. | US | whitelisted |
1536 | RegAsm.exe | 194.5.98.68:4302 | gatm.duckdns.org | — | FR | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
gatm.duckdns.org |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1536 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1536 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1536 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
1536 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
1536 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
1536 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
1536 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 64B |
1536 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
1536 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] NanoCore.RAT |
1536 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 64B |
14 ETPRO signatures available at the full report