File name:

REVIEW.PDF.z

Full analysis: https://app.any.run/tasks/6d3531fc-b976-474b-9fbe-82e25b2b02c6
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: March 31, 2020, 04:30:47
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
nanocore
Indicators:
MIME: application/zip
File info: Zip archive data, at least v2.0 to extract
MD5:

48FDC9267524CC77D94ADCE386F6428F

SHA1:

F465DCF25B30845539C3810B31788170F6387A3A

SHA256:

859C845BEB2DA8E216CC70B5A971FDABC9A1C7DF64E810DDA1B0B14C2C9533E0

SSDEEP:

24576:MQlq/y/zUfZXBq9ijg2GpnmB+fCH9JL0Rust0WMNp38JIKajnZJw:PlpzUfZIujGYB+KHbLWuKrJ+i

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

    • Application was dropped or rewritten from another process

      • REVIEW.exe (PID: 3112)
      • RegAsm.exe (PID: 2652)
    • NANOCORE was detected

      • RegAsm.exe (PID: 2652)
    • Writes to a start menu file

      • REVIEW.exe (PID: 3112)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 2652)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 3456)
      • REVIEW.exe (PID: 3112)
      • RegAsm.exe (PID: 2652)
    • Creates files in the user directory

      • REVIEW.exe (PID: 3112)
      • RegAsm.exe (PID: 2652)
  • 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

.zip | ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion: 20
ZipBitFlag: -
ZipCompression: Deflated
ZipModifyDate: 2020:03:29 21:21:04
ZipCRC: 0x3d3b7617
ZipCompressedSize: 1347485
ZipUncompressedSize: 2102784
ZipFileName: REVIEW.exe
No data.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
35
Monitored processes
3
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start winrar.exe review.exe #NANOCORE regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
2652"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
REVIEW.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Exit code:
0
Version:
2.0.50727.5420 (Win7SP1.050727-5400)
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\regasm.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\apppatch\acgenral.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
3112"C:\Users\admin\AppData\Local\Temp\Rar$EXa3456.39993\REVIEW.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa3456.39993\REVIEW.exe
WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rar$exa3456.39993\review.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\version.dll
3456"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\REVIEW.PDF.z"C:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.60.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
Total events
460
Read events
447
Write events
13
Delete events
0

Modification events

(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(3456) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\AppData\Local\Temp\REVIEW.PDF.z
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3456) WinRAR.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
3
Suspicious files
0
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
2652RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dattext
MD5:
SHA256:
3112REVIEW.exeC:\Users\admin\AppXDeploymentExtensions.onecore\AppXDeploymentExtensions.onecore.vbstext
MD5:
SHA256:
3112REVIEW.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AppXDeploymentExtensions.onecore.urltext
MD5:
SHA256:
3456WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$EXa3456.39993\REVIEW.exeexecutable
MD5:
SHA256:
3112REVIEW.exeC:\Users\admin\AppXDeploymentExtensions.onecore\dispdiag.exeexecutable
MD5:
SHA256:
2652RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:278EDBD499374BF73621F8C1F969D894
SHA256:C6999B9F79932C3B4F1C461A69D9DC8DC301D6A155ABC33EFE1B6E9E4A038391
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
2

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
2652
RegAsm.exe
8.8.8.8:53
Google Inc.
US
malicious
2652
RegAsm.exe
197.210.227.190:7591
rolandrobertroll.ddns.net
MTN NIGERIA Communication limited
NG
unknown

DNS requests

Domain
IP
Reputation
rolandrobertroll.ddns.net
  • 197.210.227.190
malicious

Threats

PID
Process
Class
Message
2652
RegAsm.exe
Potentially Bad Traffic
ET POLICY DNS Query to DynDNS Domain *.ddns .net
2652
RegAsm.exe
Potentially Bad Traffic
ET POLICY DNS Query to DynDNS Domain *.ddns .net
No debug info