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File name:

system32.exe

Full analysis: https://app.any.run/tasks/fff717de-8731-496e-83d5-eee951eae4c1
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: July 12, 2020, 21:24:22
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
nanocore
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

58E54741B4FF1FF7C99DE337935C5699

SHA1:

160EFA4A2D73C0CB215F937AE59DB24A8A636BBF

SHA256:

C1F0191249EE31873759DF0A43E7AC82AE281EC9042175FFEACDE3901B4533B0

SSDEEP:

3072:szEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIFgBRWKuHJpLCM36fz9jJiwlK6:sLV6Bta6dtJmakIM5ljQHhcim

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Changes the autorun value in the registry

      • system32.exe (PID: 860)
      • system32.exe (PID: 2728)
    • NANOCORE was detected

      • system32.exe (PID: 860)
      • system32.exe (PID: 2728)
    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 1912)
      • schtasks.exe (PID: 2808)
    • Uses Task Scheduler to run other applications

      • system32.exe (PID: 2728)
    • Connects to CnC server

      • system32.exe (PID: 2728)
  • SUSPICIOUS

    • Creates files in the program directory

      • system32.exe (PID: 2728)
    • Executable content was dropped or overwritten

      • system32.exe (PID: 2728)
      • system32.exe (PID: 860)
    • Creates files in the user directory

      • system32.exe (PID: 860)
      • system32.exe (PID: 2728)
    • Application launched itself

      • system32.exe (PID: 860)
  • INFO

    • Manual execution by user

      • taskmgr.exe (PID: 4076)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

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: 0x1e792
UninitializedDataSize: -
InitializedDataSize: 90624
CodeSize: 116736
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:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0001C798
0x0001C800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.59805
.reloc
0x00020000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.rsrc
0x00022000
0x00015FD0
0x00016000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.9979

Resources

Title
Entropy
Size
Codepage
Language
Type
1
7.99803
89976
Latin 1 / Western European
UNKNOWN
RT_RCDATA

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
42
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start #NANOCORE system32.exe #NANOCORE system32.exe schtasks.exe no specs schtasks.exe no specs taskmgr.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
860"C:\Users\admin\AppData\Local\Temp\system32.exe" C:\Users\admin\AppData\Local\Temp\system32.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
2728"C:\Users\admin\AppData\Local\Temp\system32.exe" C:\Users\admin\AppData\Local\Temp\system32.exe
system32.exe
User:
admin
Integrity Level:
HIGH
1912"schtasks.exe" /create /f /tn "TCP Monitor" /xml "C:\Users\admin\AppData\Local\Temp\tmp8F15.tmp"C:\Windows\system32\schtasks.exesystem32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Manages scheduled tasks
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2808"schtasks.exe" /create /f /tn "TCP Monitor Task" /xml "C:\Users\admin\AppData\Local\Temp\tmp8FD2.tmp"C:\Windows\system32\schtasks.exesystem32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Manages scheduled tasks
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
4076"C:\Windows\system32\taskmgr.exe" /4C:\Windows\system32\taskmgr.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Task Manager
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
405
Read events
396
Write events
8
Delete events
1

Modification events

(PID) Process:(860) system32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:TCP Monitor
Value:
C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
(PID) Process:(860) system32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(860) system32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2728) system32.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:TCP Monitor
Value:
C:\Program Files\TCP Monitor\tcpmon.exe
(PID) Process:(2728) system32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:TCP Monitor
Value:
C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
(PID) Process:(4076) taskmgr.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TaskManager
Operation:writeName:UsrColumnSettings
Value:
1C0C0000340400000000000050000000010000001D0C0000350400000000000023000000010000001E0C000036040000000000003C000000010000001F0C000039040000000000004E00000001000000200C000037040000000000004E00000001000000
(PID) Process:(4076) taskmgr.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TaskManager
Operation:writeName:Preferences
Value:
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
Executable files
2
Suspicious files
2
Text files
3
Unknown types
1

Dropped files

PID
Process
Filename
Type
2728system32.exeC:\Users\admin\AppData\Local\Temp\tmp8F15.tmp
MD5:
SHA256:
860system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dattext
MD5:098F58DBACBCC00439D4E9F9694AD587
SHA256:055EAFB746DCAD96AB564CCD9D440331E0CE6B5DF10CC0A364E7629A1D1D7822
2728system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\task.dattext
MD5:F9410EEEE2DD6DB1E71E3524BF718BAF
SHA256:4D13BB796AB4A1C1E5950C1BBD5431B9BB27DE20336C6E17F2E6E288DFACB978
2728system32.exeC:\Program Files\TCP Monitor\tcpmon.exeexecutable
MD5:58E54741B4FF1FF7C99DE337935C5699
SHA256:C1F0191249EE31873759DF0A43E7AC82AE281EC9042175FFEACDE3901B4533B0
860system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:58E54741B4FF1FF7C99DE337935C5699
SHA256:C1F0191249EE31873759DF0A43E7AC82AE281EC9042175FFEACDE3901B4533B0
2728system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.binbinary
MD5:4E5E92E2369688041CC82EF9650EDED2
SHA256:F8098A6290118F2944B9E7C842BD014377D45844379F863B00D54515A8A64B48
2728system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datbs
MD5:32D0AAE13696FF7F8AF33B2D22451028
SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29
2728system32.exeC:\Users\admin\AppData\Local\Temp\tmp8FD2.tmpxml
MD5:E4118E3EC98934AA1D4235C87B44AA31
SHA256:EFC475D73603DF6A26978D7BCAC27004830137E97FDD1656140B4A08C07470D9
2728system32.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.datbinary
MD5:963D5E2C9C0008DFF05518B47C367A7F
SHA256:5EACF2974C9BB2C2E24CDC651C4840DD6F4B76A98F0E85E90279F1DBB2E6F3C0
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
1
Threats
0

HTTP requests

No 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
2728
system32.exe
52.188.119.144:4444
trojenimadamim.duckdns.org
Microsoft Corporation
US
malicious
2728
system32.exe
8.8.8.8:53
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
trojenimadamim.duckdns.org
  • 52.188.119.144
malicious

Threats

PID
Process
Class
Message
2728
system32.exe
Misc activity
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2728
system32.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2728
system32.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2728
system32.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2728
system32.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
54 ETPRO signatures available at the full report
No debug info