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File name:

C:\Users\admin\AppData\Local\Temp\MicrosoftEdgeDevTools\ThumbnailExtractionHost.exe

Full analysis: https://app.any.run/tasks/4cd1b9e7-ba7f-44f0-aa84-3701ce2cc9e2
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: May 21, 2019, 13:13:37
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, for MS Windows
MD5:

BFAC9DB48F8F8DFDAA764DAA32B13534

SHA1:

C712A6812A98DE1C10D1C6F6391AFA1CD2DF1888

SHA256:

06A0065FC95DB3C11B564ED2D4EC6EE3A6FC47A0FD7DD007C65D36F35ACAF8A2

SSDEEP:

24576:3AHnh+eWsN3skA4RV1Hom2KXSmdaovumIF6FrvUVBP1gIu5I:qh+ZkldoPKi2ao7IFWvU31AI

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

    • Writes to a start menu file

      • ThumbnailExtractionHost.exe (PID: 3384)
    • NanoCore was detected

      • RegSvcs.exe (PID: 3900)
    • Application was dropped or rewritten from another process

      • RegSvcs.exe (PID: 3900)
    • Changes the autorun value in the registry

      • RegSvcs.exe (PID: 3900)
    • Connects to CnC server

      • RegSvcs.exe (PID: 3900)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • ThumbnailExtractionHost.exe (PID: 3384)
      • RegSvcs.exe (PID: 3900)
    • Creates files in the user directory

      • ThumbnailExtractionHost.exe (PID: 3384)
      • RegSvcs.exe (PID: 3900)
  • 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 | Win64 Executable (generic) (64.6)
.dll | Win32 Dynamic Link Library (generic) (15.4)
.exe | Win32 Executable (generic) (10.5)
.exe | Generic Win/DOS Executable (4.6)
.exe | DOS Executable Generic (4.6)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:05:20 09:23:25+02:00
PEType: PE32
LinkerVersion: 12
CodeSize: 581632
InitializedDataSize: 680448
UninitializedDataSize: -
EntryPoint: 0x2800a
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
FileVersionNumber: 0.0.0.0
ProductVersionNumber: 0.0.0.0
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (British)
CharacterSet: Unicode

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 20-May-2019 07:23:25
Detected languages:
  • English - United Kingdom

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: 0x00000110

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 20-May-2019 07:23:25
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_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x0008DFDD
0x0008E000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.67525
.rdata
0x0008F000
0x0002FD8E
0x0002FE00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.76322
.data
0x000BF000
0x00008F74
0x00005200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
1.19638
.rsrc
0x000C8000
0x00069E2C
0x0006A000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.57279
.reloc
0x00132000
0x00007134
0x00007200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.78396

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.40026
1007
Latin 1 / Western European
English - United Kingdom
RT_MANIFEST
2
2.05883
296
Latin 1 / Western European
English - United Kingdom
RT_ICON
3
2.25499
296
Latin 1 / Western European
English - United Kingdom
RT_ICON
4
1.56894
60104
Latin 1 / Western European
English - United Kingdom
RT_ICON
7
3.34702
1428
Latin 1 / Western European
English - United Kingdom
RT_STRING
8
3.2817
1674
Latin 1 / Western European
English - United Kingdom
RT_STRING
9
3.28849
1168
Latin 1 / Western European
English - United Kingdom
RT_STRING
10
3.28373
1532
Latin 1 / Western European
English - United Kingdom
RT_STRING
11
3.26322
1628
Latin 1 / Western European
English - United Kingdom
RT_STRING
12
3.25812
1126
Latin 1 / Western European
English - United Kingdom
RT_STRING

Imports

ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
GDI32.dll
IPHLPAPI.DLL
KERNEL32.dll
MPR.dll
OLEAUT32.dll
PSAPI.DLL
SHELL32.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
33
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start thumbnailextractionhost.exe #NANOCORE regsvcs.exe

Process information

PID
CMD
Path
Indicators
Parent process
3384"C:\Users\admin\AppData\Local\Temp\ThumbnailExtractionHost.exe" C:\Users\admin\AppData\Local\Temp\ThumbnailExtractionHost.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3900"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
ThumbnailExtractionHost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Services Installation Utility
Version:
2.0.50727.5420 (Win7SP1.050727-5400)
Total events
47
Read events
46
Write events
1
Delete events
0

Modification events

(PID) Process:(3900) RegSvcs.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
Executable files
2
Suspicious files
1
Text files
2
Unknown types
1

Dropped files

PID
Process
Filename
Type
3384ThumbnailExtractionHost.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msinfo32.vbstext
MD5:8A21B9BD5604DFCE029C256AC0EA3E06
SHA256:417F6411B6A2BB1DE68533BC0D3CC184AA629FB961940BB5068486C41E1A4F8A
3900RegSvcs.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:D79F070423FDD3F01CE8C2BA3FBBC8ED
SHA256:97BD627EBFC4D40B21EBAAED916A1BA53859520EDC99537B37D042A0D5425A5A
3900RegSvcs.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dattext
MD5:C3D9023E425F402F412150E134B52D3D
SHA256:65A39E6DFF558E86A36648747D4EF5EE860C59171E6E105F88513265172513D5
3384ThumbnailExtractionHost.exeC:\Users\admin\AppData\Local\Temp\MicrosoftEdgeDevTools\ThumbnailExtractionHost.exeexecutable
MD5:F97A20E8BDAF24D5E1FA069AEC46B9C6
SHA256:81A124BF8022FE713AAF29D4ECFF90B0AEA4D686087AEAFB2C03AFC693E31C92
3900RegSvcs.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datbs
MD5:9E7D0351E4DF94A9B0BADCEB6A9DB963
SHA256:AAFC7B40C5FE680A2BB549C3B90AABAAC63163F74FFFC0B00277C6BBFF88B757
3900RegSvcs.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.datbinary
MD5:653DDDCB6C89F6EC51F3DDC0053C5914
SHA256:83B9CAE66800C768887FB270728F6806CBEBDEAD9946FA730F01723847F17FF9
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
10
DNS requests
8
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
3900
RegSvcs.exe
8.8.8.8:53
Google Inc.
US
whitelisted
3900
RegSvcs.exe
192.253.242.196:54984
yes.dnsabr.com
SoftLayer Technologies Inc.
AU
malicious

DNS requests

Domain
IP
Reputation
yes.dnsabr.com
  • 192.253.242.196
malicious
dns.msftncsi.com
  • 131.107.255.255
shared

Threats

PID
Process
Class
Message
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3900
RegSvcs.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3900
RegSvcs.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3900
RegSvcs.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3900
RegSvcs.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
3900
RegSvcs.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 64B
41 ETPRO signatures available at the full report
No debug info