File name:

voucher.img

Full analysis: https://app.any.run/tasks/d9aa542d-c1b1-450b-913a-edb0ee60c1d0
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: April 15, 2019, 14:45:10
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
nanocore
rat
Indicators:
MIME: application/x-iso9660-image
File info: UDF filesystem data (version 1.5) 'FEDEX_DELIVERY'
MD5:

ADF4AA23B17061ABE5F6B226E67FD8C0

SHA1:

3AA68180DC9BB68D56BE7CDCD94372882A289C8F

SHA256:

B124F8E553AF074B9324890122EB5AE0084B4650A091A924D622F4E8720E15E1

SSDEEP:

24576:GAHnh+eWsN3skA4RV1Hom2KXMmHaId8iZ65NypKOFmi5:hh+ZkldoPK8YaIKiB

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

      • e-VOUCHER#0838.exe (PID: 2184)
      • RegAsm.exe (PID: 2572)
    • NanoCore was detected

      • RegAsm.exe (PID: 2572)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 2572)
    • Writes to a start menu file

      • e-VOUCHER#0838.exe (PID: 2184)
    • Connects to CnC server

      • RegAsm.exe (PID: 2572)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 3628)
      • e-VOUCHER#0838.exe (PID: 2184)
      • RegAsm.exe (PID: 2572)
    • Creates files in the user directory

      • RegAsm.exe (PID: 2572)
      • e-VOUCHER#0838.exe (PID: 2184)
  • 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

.iso | ISO 9660 CD image (27.6)
.atn | Photoshop Action (27.1)
.gmc | Game Music Creator Music (6.1)

EXIF

ISO

VolumeName: FEDEX_DELIVERY
VolumeBlockCount: 1004
VolumeBlockSize: 2048
RootDirectoryCreateDate: 2019:04:12 22:20:08+03:00
VolumeSetName: UNDEFINED
Software: IMGBURN V2.5.8.0 - THE ULTIMATE IMAGE BURNER!
VolumeCreateDate: 2019:04:12 22:20:08.00+03:00
VolumeModifyDate: 2019:04:12 22:20:08.00+03:00

Composite

VolumeSize: 2008 kB
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
Monitored processes
4
Malicious processes
4
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start rundll32.exe no specs winrar.exe e-voucher#0838.exe #NANOCORE regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
1840"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\admin\AppData\Local\Temp\voucher.img.isoC:\Windows\system32\rundll32.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\rundll32.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imagehlp.dll
2184"C:\Users\admin\AppData\Local\Temp\Rar$EXa3628.5681\e-VOUCHER#0838.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXa3628.5681\e-VOUCHER#0838.exe
WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rar$exa3628.5681\e-voucher#0838.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
2572"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
e-VOUCHER#0838.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
3628"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\voucher.img.iso"C:\Program Files\WinRAR\WinRAR.exe
rundll32.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\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
Total events
943
Read events
851
Write events
92
Delete events
0

Modification events

(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:writeName:@C:\Windows\System32\isoburn.exe,-350
Value:
Disc Image File
(PID) Process:(1840) rundll32.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.iso\OpenWithProgids
Operation:writeName:Windows.IsoFile
Value:
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:LangID
Value:
0904
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:writeName:@%SystemRoot%\System32\isoburn.exe,-352
Value:
Windows Disc Image Burner
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:C:\Windows\System32\isoburn.exe
Value:
Windows Disc Image Burner
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:C:\Program Files\WinRAR\WinRAR.exe
Value:
WinRAR archiver
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:C:\Program Files\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
Value:
Adobe Acrobat Reader DC
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:C:\Windows\eHome\ehshell.exe
Value:
Windows Media Center
(PID) Process:(1840) rundll32.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Operation:writeName:C:\Program Files\Internet Explorer\iexplore.exe
Value:
Internet Explorer
Executable files
3
Suspicious files
2
Text files
2
Unknown types
1

Dropped files

PID
Process
Filename
Type
2572RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.datbinary
MD5:
SHA256:
2184e-VOUCHER#0838.exeC:\Users\admin\chkdsk\DmNotificationBroker.vbstext
MD5:
SHA256:
2184e-VOUCHER#0838.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DmNotificationBroker.urltext
MD5:
SHA256:
3628WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$EXa3628.5681\e-VOUCHER#0838.exeexecutable
MD5:
SHA256:
2184e-VOUCHER#0838.exeC:\Users\admin\chkdsk\lodctr.exeexecutable
MD5:
SHA256:
2572RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.datbinary
MD5:4D8AF7EC17CA5B66A617E00BB0C80481
SHA256:4251EF3033BB49F05311505FF955ED0989BA17C04F93B4DE47428A59FDFD33CB
2572RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datbs
MD5:EDB5F15385E111D1F43093F56149A3FB
SHA256:1995E579108E8EB3B6C00893E855E8204D1C36F150088736556B66BE445E7957
2572RegAsm.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
6
DNS requests
3
Threats
117

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
2572
RegAsm.exe
8.8.8.8:53
Google Inc.
US
malicious
2572
RegAsm.exe
92.222.72.160:4156
kingdevil.ddns.net
OVH SAS
FR
malicious

DNS requests

Domain
IP
Reputation
kingdevil.ddns.net
  • 92.222.72.160
malicious

Threats

PID
Process
Class
Message
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2572
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
2572
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
2572
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
2572
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
2572
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
66 ETPRO signatures available at the full report
No debug info