File name:

Rust Loader.exe

Full analysis: https://app.any.run/tasks/92a0f990-8ed5-4454-b40d-c6a918fc5662
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 08, 2019, 00:04:12
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
nanocore
rat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

C41283F4741AF7DF33DD9B1ACE94224E

SHA1:

F55522F34B4F2549FD9EB8A9E8DCD31FC8D7E92C

SHA256:

06F08B5F1328B2DA597C9715C9EE7BD1D1EF41AB35F3CA8F26BA3784D0A9145F

SSDEEP:

3072:gzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HI6aWUG4rXzIRL1D5QOvBxxrYX8:gLV6Bta6dtJmakIM5x0vIJQoxxr2QNmu

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

    • NANOCORE was detected

      • Rust Loader.exe (PID: 2600)
      • Rust Loader.exe (PID: 3772)
    • Changes settings of System certificates

      • Rust Loader.exe (PID: 2600)
    • Connects to CnC server

      • Rust Loader.exe (PID: 3772)
      • Rust Loader.exe (PID: 2600)
    • Changes the autorun value in the registry

      • Rust Loader.exe (PID: 3772)
      • Rust Loader.exe (PID: 2600)
  • SUSPICIOUS

    • Reads Internet Cache Settings

      • Rust Loader.exe (PID: 2600)
    • Creates files in the user directory

      • Rust Loader.exe (PID: 2600)
    • Executable content was dropped or overwritten

      • Rust Loader.exe (PID: 2600)
    • Reads internet explorer settings

      • Rust Loader.exe (PID: 2600)
    • Adds / modifies Windows certificates

      • Rust Loader.exe (PID: 2600)
    • Application launched itself

      • Rust Loader.exe (PID: 2600)
  • INFO

    No info indicators.
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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2015:02:22 01:49:37+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 116736
InitializedDataSize: 90112
UninitializedDataSize: -
EntryPoint: 0x1e792
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

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
6.59804
.reloc
0x00020000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.rsrc
0x00022000
0x00015DF0
0x00015E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.9972

Resources

Title
Entropy
Size
Codepage
Language
Type
1
7.99736
89496
Latin 1 / Western European
UNKNOWN
RT_RCDATA

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
36
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start #NANOCORE rust loader.exe #NANOCORE rust loader.exe

Process information

PID
CMD
Path
Indicators
Parent process
2600"C:\Users\admin\AppData\Local\Temp\Rust Loader.exe" C:\Users\admin\AppData\Local\Temp\Rust Loader.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rust loader.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3772"C:\Users\admin\AppData\Local\Temp\Rust Loader.exe" C:\Users\admin\AppData\Local\Temp\Rust Loader.exe
Rust Loader.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rust loader.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
Total events
603
Read events
551
Write events
51
Delete events
1

Modification events

(PID) Process:(2600) Rust Loader.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:(2600) Rust Loader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2600) Rust Loader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2600) Rust Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Rust Loader_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
Executable files
1
Suspicious files
4
Text files
24
Unknown types
4

Dropped files

PID
Process
Filename
Type
2600Rust Loader.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@pornhub[2].txt
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.bak
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dattext
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\I0488CJO\front-index-pc[1].csstext
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LH043OAM\premium-modals[1].csstext
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@pornhub[1].txttext
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\I0488CJO\generated-header[1].csstext
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\error[2]
MD5:
SHA256:
2600Rust Loader.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\warning[1]
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
20
DNS requests
12
Threats
36

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2600
Rust Loader.exe
GET
301
66.254.114.41:80
http://pornhub.com/
US
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2600
Rust Loader.exe
66.254.114.41:80
pornhub.com
Reflected Networks, Inc.
US
malicious
2600
Rust Loader.exe
152.195.34.118:443
ci.phncdn.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
2600
Rust Loader.exe
66.254.114.41:443
pornhub.com
Reflected Networks, Inc.
US
malicious
2600
Rust Loader.exe
3.17.202.129:11857
0.tcp.ngrok.io
US
malicious
2600
Rust Loader.exe
8.8.8.8:53
Google Inc.
US
malicious
2600
Rust Loader.exe
205.185.208.142:443
cdn1d-static-shared.phncdn.com
Highwinds Network Group, Inc.
US
suspicious
2600
Rust Loader.exe
172.217.23.106:443
fonts.googleapis.com
Google Inc.
US
whitelisted
2600
Rust Loader.exe
66.254.114.32:443
hubt.pornhub.com
Reflected Networks, Inc.
US
unknown
2600
Rust Loader.exe
205.185.208.79:443
static.trafficjunky.com
Highwinds Network Group, Inc.
US
unknown
3772
Rust Loader.exe
3.17.202.129:11857
0.tcp.ngrok.io
US
malicious

DNS requests

Domain
IP
Reputation
0.tcp.ngrok.io
  • 3.17.202.129
malicious
pornhub.com
  • 66.254.114.41
whitelisted
www.pornhub.com
  • 66.254.114.41
whitelisted
ci.phncdn.com
  • 152.195.34.118
whitelisted
smpop.icfcdn.com
  • 69.16.175.42
  • 69.16.175.10
malicious
cdn1d-static-shared.phncdn.com
  • 205.185.208.142
whitelisted
static.trafficjunky.com
  • 205.185.208.79
whitelisted
fonts.googleapis.com
  • 172.217.23.106
whitelisted
fonts.gstatic.com
  • 172.217.22.99
whitelisted
hubt.pornhub.com
  • 66.254.114.32
whitelisted

Threats

PID
Process
Class
Message
2600
Rust Loader.exe
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
2600
Rust Loader.exe
Misc Attack
ET TOR Known Tor Relay/Router (Not Exit) Node Traffic group 415
2600
Rust Loader.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2600
Rust Loader.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2600
Rust Loader.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2600
Rust Loader.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2600
Rust Loader.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2600
Rust Loader.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2600
Rust Loader.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
2600
Rust Loader.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
14 ETPRO signatures available at the full report
No debug info