| File name: | taskhost.exe |
| Full analysis: | https://app.any.run/tasks/dcdd0877-bcbb-4c92-9a5e-6791fb9023a8 |
| 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: | December 27, 2021, 12:29:27 |
| 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: | C430C8306E52673D281B570C05548BA9 |
| SHA1: | 5907F236EAD6F7ADD0456293B954BB8947E20667 |
| SHA256: | 61AC76C40A0FB1B40CC06F58762C5E795CB308F52AFCE076070396DA82B9A323 |
| SSDEEP: | 6144:Keu2ClDCSMRyN2LCYq9vv7MXii4WxfUTWeMzc+sB64aEGcW+:dMlDvMR1CLv7mdxSPQctB61l+ |
MALICIOUS
Loads the Task Scheduler COM API
- schtasks.exe (PID: 2672)
- schtasks.exe (PID: 3108)
Uses Task Scheduler to run other applications
- taskhost.exe (PID: 2572)
Drops executable file immediately after starts
- taskhost.exe (PID: 2572)
Changes the autorun value in the registry
- taskhost.exe (PID: 2572)
Connects to CnC server
- taskhost.exe (PID: 2572)
NANOCORE was detected
- taskhost.exe (PID: 2572)
SUSPICIOUS
Checks supported languages
- taskhost.exe (PID: 2572)
- cmd.exe (PID: 2184)
Executable content was dropped or overwritten
- taskhost.exe (PID: 2572)
Uses TASKKILL.EXE to kill process
- cmd.exe (PID: 2184)
Starts CMD.EXE for commands execution
- taskhost.exe (PID: 2572)
Reads Environment values
- taskhost.exe (PID: 2572)
Creates files in the user directory
- taskhost.exe (PID: 2572)
Reads the computer name
- taskhost.exe (PID: 2572)
Starts CMD.EXE for self-deleting
- taskhost.exe (PID: 2572)
INFO
Reads the computer name
- schtasks.exe (PID: 2672)
- taskkill.exe (PID: 764)
- PING.EXE (PID: 2648)
- schtasks.exe (PID: 3108)
Checks supported languages
- schtasks.exe (PID: 2672)
- PING.EXE (PID: 2648)
- schtasks.exe (PID: 3108)
- taskkill.exe (PID: 764)
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: | 0x6443e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 90624 |
| CodeSize: | 402944 |
| LinkerVersion: | 6 |
| PEType: | PE32 |
| TimeStamp: | 2015:02:22 01:49:37+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 22-Feb-2015 00:49:37 |
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: | 22-Feb-2015 00:49:37 |
| 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 | 0x00062444 | 0x00062600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.16867 |
.rsrc | 0x00066000 | 0x00015FA0 | 0x00016000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.9971 |
.reloc | 0x0007C000 | 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 | 7.99778 | 89928 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
Imports
mscoree.dll |
Total processes
43
Monitored processes
6
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 764 | taskkill /f /im "taskhost.exe" | C:\Windows\system32\taskkill.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2184 | "cmd.exe" /C taskkill /f /im "taskhost.exe" & ping -n 1 -w 3000 1.1.1.1 & type nul > "C:\Users\admin\AppData\Local\Temp\taskhost.exe" & del /f /q "C:\Users\admin\AppData\Local\Temp\taskhost.exe" | C:\Windows\system32\cmd.exe | — | taskhost.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) Modules
| |||||||||||||||
| 2572 | "C:\Users\admin\AppData\Local\Temp\taskhost.exe" | C:\Users\admin\AppData\Local\Temp\taskhost.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 1 Modules
| |||||||||||||||
| 2648 | ping -n 1 -w 3000 1.1.1.1 | C:\Windows\system32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2672 | "schtasks.exe" /delete /f /tn "TCP Monitor" | C:\Windows\system32\schtasks.exe | — | taskhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3108 | "schtasks.exe" /delete /f /tn "TCP Monitor Task" | C:\Windows\system32\schtasks.exe | — | taskhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
790
Read events
774
Write events
15
Delete events
1
Modification events
| (PID) Process: | (2572) taskhost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2572) taskhost.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 | |||
| (PID) Process: | (2572) taskhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | delete value | Name: | TCP Monitor |
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | |||
Executable files
1
Suspicious files
2
Text files
1
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2572 | taskhost.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe | executable | |
MD5:— | SHA256:— | |||
| 2572 | taskhost.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat | text | |
MD5:— | SHA256:— | |||
| 2572 | taskhost.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.dat | binary | |
MD5:963D5E2C9C0008DFF05518B47C367A7F | SHA256:5EACF2974C9BB2C2E24CDC651C4840DD6F4B76A98F0E85E90279F1DBB2E6F3C0 | |||
| 2572 | taskhost.exe | C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.dat | bs | |
MD5:32D0AAE13696FF7F8AF33B2D22451028 | SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29 | |||
| 2572 | taskhost.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
4
DNS requests
2
Threats
122
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 |
|---|---|---|---|---|---|---|
2572 | taskhost.exe | 193.161.193.99:62154 | nugeri-62154.portmap.io | OOO Bitree Networks | RU | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
nugeri-62154.portmap.io |
| malicious |
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potential Corporate Privacy Violation | ET POLICY DNS Query to a Reverse Proxy Service Observed |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
2572 | taskhost.exe | A Network Trojan was detected | ET TROJAN Possible NanoCore C2 60B |
106 ETPRO signatures available at the full report