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File name:

EXIM INQUIRY_4715680.exe

Full analysis: https://app.any.run/tasks/252b2d64-8ee0-4006-a4c5-b62775a679c5
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: July 17, 2019, 19:50:35
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
nanocore
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

1FCC76CB986C3D3598688A305F516096

SHA1:

28DB497EDD050F038AFD61B7BEBD3A4260BF0365

SHA256:

AF4A990B90312889BCE905FB91DCAEF55A5BCB81F3C2B477E1C2525524F3C0F5

SSDEEP:

12288:oLOcSD8BqLFF7gL+rjmwHVbsgo4Wpz90/MgQU7AnpeWCe:fLPgL+rq+sLz7uMgMB

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: 2692)
    • NanoCore was detected

      • RegAsm.exe (PID: 2692)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 2692)
  • SUSPICIOUS

    • Creates files in the user directory

      • RegAsm.exe (PID: 2692)
    • Executable content was dropped or overwritten

      • RegAsm.exe (PID: 2692)
  • 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.) (82.9)
.dll | Win32 Dynamic Link Library (generic) (7.4)
.exe | Win32 Executable (generic) (5.1)
.exe | Generic Win/DOS Executable (2.2)
.exe | DOS Executable Generic (2.2)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x2bc2e
UninitializedDataSize: -
InitializedDataSize: 751616
CodeSize: 171520
LinkerVersion: 8
PEType: PE32
TimeStamp: 2019:06:06 21:40:27+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 06-Jun-2019 19:40:27
Detected languages:
  • English - United States
  • German - Germany

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: 06-Jun-2019 19:40:27
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x00029C44
0x00029E00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.69726
.rsrc
0x0002C000
0x000B7564
0x000B7600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
6.04735
.reloc
0x000E4000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
0
2.69055
90
Latin 1 / Western European
English - United States
RT_GROUP_ICON
1
3.01694
270376
Latin 1 / Western European
English - United States
RT_ICON
2
4.81992
1128
Latin 1 / Western European
English - United States
RT_ICON
3
3.72304
9640
Latin 1 / Western European
English - United States
RT_ICON
4
3.88393
4264
Latin 1 / Western European
English - United States
RT_ICON
5
3.13323
67624
Latin 1 / Western European
English - United States
RT_ICON
6
3.45766
16936
Latin 1 / Western European
English - United States
RT_ICON
119
7.6428
380416
Latin 1 / Western European
German - Germany
RT_HTML

Imports

mscoree.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
37
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start exim inquiry_4715680.exe no specs #NANOCORE regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
3012"C:\Users\admin\AppData\Local\Temp\EXIM INQUIRY_4715680.exe" C:\Users\admin\AppData\Local\Temp\EXIM INQUIRY_4715680.exeexplorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
2692"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
EXIM INQUIRY_4715680.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Version:
2.0.50727.5420 (Win7SP1.050727-5400)
Total events
18
Read events
17
Write events
1
Delete events
0

Modification events

(PID) Process:(2692) 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
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2692RegAsm.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.datbinary
MD5:BB72799B574AF95D111121E3A73BFE05
SHA256:DCEDDDEF919C46BC0E18E024AB469A4F3A723B090BB3EE8DE302B64C85C631F1
2692RegAsm.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
22
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
2692
RegAsm.exe
8.8.8.8:53
Google Inc.
US
whitelisted
8.8.8.8:53
Google Inc.
US
whitelisted
2692
RegAsm.exe
197.210.52.210:2382
kalakuta.ddns.net
MTN NIGERIA Communication limited
NG
unknown
2692
RegAsm.exe
160.202.163.200:2382
Korea Telecom
KR
malicious

DNS requests

Domain
IP
Reputation
kalakuta.ddns.net
  • 197.210.52.210
unknown

Threats

No threats detected
No debug info