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| File name: | Fax00118490232.bin |
| Full analysis: | https://app.any.run/tasks/12400660-b97f-46c6-a3be-e4434bd7d16a |
| 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: | January 11, 2019, 04:52:32 |
| 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: | A12CF2B98F0CF656DE7E864397A51B49 |
| SHA1: | B4986368B70AA0B95B22C1CF01C83BF84270955F |
| SHA256: | A69F4CEF162830B3FC3E96397447F7A003EA6EB3A2D6209F2AE013D2B76538D5 |
| SSDEEP: | 12288:yC9nCnTG1HUNIZv2CVb3TmuRaix1rBSyKfI7+2UGk4daxbtHQ:yC5CnT6Zv2CVLTmuIix13u4+2UGYHQ |
MALICIOUS
Changes the autorun value in the registry
- Fax00118490232.bin.exe (PID: 2800)
- RegAsm.exe (PID: 1816)
NanoCore was detected
- RegAsm.exe (PID: 1816)
Application was dropped or rewritten from another process
- RegAsm.exe (PID: 1816)
SUSPICIOUS
Creates files in the user directory
- RegAsm.exe (PID: 1816)
Executable content was dropped or overwritten
- RegAsm.exe (PID: 1816)
Connects to unusual port
- RegAsm.exe (PID: 1816)
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.) (81) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.2) |
| .exe | | | Win32 Executable (generic) (4.9) |
| .exe | | | Win16/32 Executable Delphi generic (2.2) |
| .exe | | | Generic Win/DOS Executable (2.2) |
EXIF
EXE
| AssemblyVersion: | 0.0.0.0 |
|---|---|
| ProductVersion: | 0.0.0.0 |
| OriginalFileName: | BComyxEvDMfDtRsAm.exe |
| LegalCopyright: | |
| InternalName: | BComyxEvDMfDtRsAm.exe |
| FileVersion: | 0.0.0.0 |
| FileDescription: | |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 0.0.0.0 |
| FileVersionNumber: | 0.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xc7fce |
| UninitializedDataSize: | - |
| InitializedDataSize: | 2560 |
| CodeSize: | 811008 |
| LinkerVersion: | 6 |
| PEType: | PE32 |
| TimeStamp: | 2019:01:10 15:36:43+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Jan-2019 14:36:43 |
| FileDescription: | - |
| FileVersion: | 0.0.0.0 |
| InternalName: | BComyxEvDMfDtRsAm.exe |
| LegalCopyright: | - |
| OriginalFilename: | BComyxEvDMfDtRsAm.exe |
| ProductVersion: | 0.0.0.0 |
| Assembly Version: | 0.0.0.0 |
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: | 4 |
| Time date stamp: | 10-Jan-2019 14:36:43 |
| 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 | 0x000C5FD4 | 0x000C6000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.99459 |
.sdata | 0x000C8000 | 0x000001F8 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.81792 |
.rsrc | 0x000CA000 | 0x000004F8 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.81446 |
.reloc | 0x000CC000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0980042 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
30
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2800 | "C:\Users\admin\AppData\Local\Temp\Fax00118490232.bin.exe" | C:\Users\admin\AppData\Local\Temp\Fax00118490232.bin.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Version: 0.0.0.0 Modules
| |||||||||||||||
| 1816 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | Fax00118490232.bin.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
Total events
26
Read events
24
Write events
2
Delete events
0
Modification events
| (PID) Process: | (2800) Fax00118490232.bin.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | startupname |
Value: C:\Users\admin\AppData\Local\Temp\Fax00118490232.bin.exe | |||
| (PID) Process: | (1816) RegAsm.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 | |||
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1816 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | executable | |
MD5:911BDF77EB94E48CA524252A3FD47019 | SHA256:A07564A8771DAFA3EBE9ACEAA20C327EFA2D0AC2EDC06B2BBC3EEBDC66600641 | |||
| 1816 | RegAsm.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | text | |
MD5:CBB0F65A08693C9C5E43FB3C4BF9FABA | SHA256:3E145190EA177B12C7DAA4F40AE53ABD7D721B1CB1486736F2EDD3FFF6F42136 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
38
DNS requests
19
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 |
|---|---|---|---|---|---|---|
1816 | RegAsm.exe | 8.8.8.8:53 | — | Google Inc. | US | whitelisted |
1816 | RegAsm.exe | 192.169.69.25:1009 | parcel.duckdns.org | Wowrack.com | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
parcel.duckdns.org |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1816 | RegAsm.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |