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File name:

scan1.exe

Full analysis: https://app.any.run/tasks/3d37c3ea-5f6f-4e95-b510-5e89e727c8e0
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: June 19, 2019, 12:05:46
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:

9C5F762EB31CB752E5E0F296E7BAC528

SHA1:

E0A7A0F447F1EA3FE08334B79E14AFB88BD166C6

SHA256:

0031CB925E76F801A0CA2EBBC32029BE927687F0D6183777BE917878FFD7CD4B

SSDEEP:

49152:9h+ZkldoPK8YahgFmalBT/J2wg8houGJ:u2cPK85ah/Piu

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

      • RegAsm.exe (PID: 3572)
      • RegAsm.exe (PID: 3996)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 3996)
    • NanoCore was detected

      • RegAsm.exe (PID: 3996)
    • Connects to CnC server

      • RegAsm.exe (PID: 3996)
  • SUSPICIOUS

    • Creates files in the user directory

      • RegAsm.exe (PID: 3996)
    • Executable content was dropped or overwritten

      • RegAsm.exe (PID: 3996)
    • Application launched itself

      • RegAsm.exe (PID: 3996)
  • 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 | Win32 EXE PECompact compressed (generic) (49.3)
.exe | Win64 Executable (generic) (32.7)
.dll | Win32 Dynamic Link Library (generic) (7.8)
.exe | Win32 Executable (generic) (5.3)
.exe | Generic Win/DOS Executable (2.3)

EXIF

EXE

CharacterSet: Unicode
LanguageCode: English (British)
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x0000
ProductVersionNumber: 0.0.0.0
FileVersionNumber: 0.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 5.1
ImageVersion: -
OSVersion: 5.1
EntryPoint: 0x2800a
UninitializedDataSize: -
InitializedDataSize: 1132032
CodeSize: 581632
LinkerVersion: 12
PEType: PE32
TimeStamp: 2019:06:18 10:05:44+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 18-Jun-2019 08:05:44
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: 18-Jun-2019 08:05:44
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
5.76324
.data
0x000BF000
0x00008F74
0x00005200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
1.19638
.rsrc
0x000C8000
0x000D82F8
0x000D8400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.5952
.reloc
0x001A1000
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
1.59471
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.
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
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start scan1.exe no specs #NANOCORE regasm.exe regasm.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3200"C:\Users\admin\AppData\Local\Temp\scan1.exe" C:\Users\admin\AppData\Local\Temp\scan1.exeexplorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3996"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
scan1.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)
3572"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeRegAsm.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)
Total events
55
Read events
50
Write events
5
Delete events
0

Modification events

(PID) Process:(3996) RegAsm.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:(3996) RegAsm.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3996) RegAsm.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
1
Suspicious files
1
Text files
1
Unknown types
1

Dropped files

PID
Process
Filename
Type
3996RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dattext
MD5:EB25281BE9ECD8EDB1FB3D3E899081C2
SHA256:08C44FE74CA1AD8988EC2E55AB9987F2A81AF582BDF886DF8F6F06D40B4EBE68
3996RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.datbinary
MD5:3AEE17CC35F2DB9FE41CCD0FA03C6387
SHA256:B237608ADEFC093484DE3C1630A4B10BC7D092A62A5A1E861856C813D5D2EBDF
3996RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datfli
MD5:CDBED468F133C3BAFFF2BB301C37800A
SHA256:3C099E8A656F6D63978ECB6DD8D4C8EACDB689BB2F748314550DC78A05F30D95
3996RegAsm.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
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
3996
RegAsm.exe
45.74.17.152:5675
mrekuro.hopto.org
Swiftway Sp. z o.o.
SV
malicious
3996
RegAsm.exe
8.8.8.8:53
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
mrekuro.hopto.org
  • 45.74.17.152
malicious

Threats

PID
Process
Class
Message
3996
RegAsm.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3996
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
No debug info