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| download: | zafar.exe |
| Full analysis: | https://app.any.run/tasks/244c2fb6-0c10-46b9-9d41-d416579030fa |
| 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 08, 2020, 22:37:03 |
| 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: | 3BB968644B38A963FBA250E0619685D6 |
| SHA1: | 32C333AFAAD275E3114130E92AC88C40882F2F03 |
| SHA256: | 0354B137117F406A69F556BA530FA0D36126F23855CAC90D4F9646823F3A0EEA |
| SSDEEP: | 12288:xj2k6jBgrpiApfr6z8XH9g0l21hcwghHi8UQ29l:xCk4eQAZQ8Ng0l2E1e |
MALICIOUS
Uses Task Scheduler to run other applications
- zafar.exe (PID: 2692)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 3368)
NANOCORE was detected
- zafar.exe (PID: 3872)
Changes the autorun value in the registry
- zafar.exe (PID: 3872)
SUSPICIOUS
Creates files in the user directory
- zafar.exe (PID: 2692)
- zafar.exe (PID: 3872)
Application launched itself
- zafar.exe (PID: 2692)
Executable content was dropped or overwritten
- zafar.exe (PID: 2692)
- zafar.exe (PID: 3872)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (61.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.6) |
| .exe | | | Win32 Executable (generic) (10) |
| .exe | | | Win16/32 Executable Delphi generic (4.6) |
| .exe | | | Generic Win/DOS Executable (4.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:08:07 09:14:05+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 518656 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x8085e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2.3.0.2 |
| ProductVersionNumber: | 2.3.0.2 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | Carl Friedrich Gauss |
| CompanyName: | Therese Gauss |
| FileDescription: | Friedrich Gauss |
| FileVersion: | 2.3.0.2 |
| InternalName: | VvASO.exe |
| LegalCopyright: | Therese Gauss triditional |
| LegalTrademarks: | Therese Gauss |
| OriginalFileName: | VvASO.exe |
| ProductName: | Friedrich Gauss |
| ProductVersion: | 2.3.0.2 |
| AssemblyVersion: | 2.42.4.8 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 07-Aug-2020 07:14:05 |
| Comments: | Carl Friedrich Gauss |
| CompanyName: | Therese Gauss |
| FileDescription: | Friedrich Gauss |
| FileVersion: | 2.3.0.2 |
| InternalName: | VvASO.exe |
| LegalCopyright: | Therese Gauss triditional |
| LegalTrademarks: | Therese Gauss |
| OriginalFilename: | VvASO.exe |
| ProductName: | Friedrich Gauss |
| ProductVersion: | 2.3.0.2 |
| Assembly Version: | 2.42.4.8 |
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: | 07-Aug-2020 07:14:05 |
| 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 | 0x0007E864 | 0x0007EA00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.69638 |
.rsrc | 0x00082000 | 0x00000620 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.47966 |
.reloc | 0x00084000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
40
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2692 | "C:\Users\admin\AppData\Local\Temp\zafar.exe" | C:\Users\admin\AppData\Local\Temp\zafar.exe | explorer.exe | |
User: admin Company: Therese Gauss Integrity Level: MEDIUM Description: Friedrich Gauss Exit code: 0 Version: 2.3.0.2 | ||||
| 3368 | "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DBZuSpNZTD" /XML "C:\Users\admin\AppData\Local\Temp\tmpAC0A.tmp" | C:\Windows\System32\schtasks.exe | — | zafar.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) | ||||
| 3872 | "{path}" | C:\Users\admin\AppData\Local\Temp\zafar.exe | zafar.exe | |
User: admin Company: Therese Gauss Integrity Level: MEDIUM Description: Friedrich Gauss Version: 2.3.0.2 | ||||
Total events
85
Read events
80
Write events
0
Delete events
0
Modification events
Executable files
2
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3872 | zafar.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | text | |
MD5:5795DC4676429BD7D0A7ABC9CD58A461 | SHA256:FB7F1BF85E84408147F59DAA39478D21C8DB54ADDF196DE102144614E01F128E | |||
| 2692 | zafar.exe | C:\Users\admin\AppData\Roaming\DBZuSpNZTD.exe | executable | |
MD5:3BB968644B38A963FBA250E0619685D6 | SHA256:0354B137117F406A69F556BA530FA0D36126F23855CAC90D4F9646823F3A0EEA | |||
| 3872 | zafar.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | executable | |
MD5:3BB968644B38A963FBA250E0619685D6 | SHA256:0354B137117F406A69F556BA530FA0D36126F23855CAC90D4F9646823F3A0EEA | |||
| 2692 | zafar.exe | C:\Users\admin\AppData\Local\Temp\tmpAC0A.tmp | xml | |
MD5:5CA4C580FAA38446BDB986EAC8E3CCAB | SHA256:CC03B90DF8C3084A8552DCB2F61768DEB894A97CC128F8FF890A7C710C1E40F2 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
35
DNS requests
12
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 |
|---|---|---|---|---|---|---|
3872 | zafar.exe | 129.205.124.205:3575 | officezafar.hopto.org | — | NG | unknown |
3872 | zafar.exe | 8.8.8.8:53 | — | Google Inc. | US | whitelisted |
3872 | zafar.exe | 79.134.225.105:3575 | — | Andreas Fink trading as Fink Telecom Services | CH | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
officezafar.hopto.org |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
3872 | zafar.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |