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File name:

copia del proceso del cobro jur__dico con referencia N__00829283874copia del proceso del cobro jur__dico con referencia N__00829283874.exe

Full analysis: https://app.any.run/tasks/62ef87ca-bebd-4ee5-b211-addd6a0b264e
Verdict: Malicious activity
Threats:

njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world.

Analysis date: December 02, 2019, 21:51:52
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
njrat
bladabindi
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

159F6B2738C30889170FE8A6869146C1

SHA1:

0984A995A80A854607FB0FACFBD15722DA7EDEA2

SHA256:

3D0FE8C01BF93631CEDA3B15C47CEE1C5ACB2DBEAE352F3255C4EDF159DF444C

SSDEEP:

6144:Su6kkw96o5ewV6VmgB2uk8iCdyLBC+A6S6BAOC8CY01iACWz6nB:SnkofmgB2u3xyLy6/BAOTACTB

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

      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 2408)
    • Starts Visual C# compiler

      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 2408)
      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 1036)
    • Connects to CnC server

      • RegAsm.exe (PID: 928)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 928)
    • NJRAT was detected

      • RegAsm.exe (PID: 928)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 2408)
    • Uses NETSH.EXE for network configuration

      • RegAsm.exe (PID: 928)
    • Application launched itself

      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 2408)
    • Creates files in the user directory

      • b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe (PID: 2408)
  • 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.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:10:11 14:01:32+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 307200
InitializedDataSize: 234496
UninitializedDataSize: -
EntryPoint: 0x4cf5e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 11-Oct-2019 12:01:32
Detected languages:
  • English - United States

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: 11-Oct-2019 12:01:32
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
0x0004AF64
0x0004B000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.52955
.rsrc
0x0004E000
0x000390C4
0x00039200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.81253
.reloc
0x00088000
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
3.05117
132
Latin 1 / Western European
English - United States
RT_GROUP_ICON
1
7.96415
47101
Latin 1 / Western European
English - United States
RT_ICON
2
4.78393
67624
Latin 1 / Western European
English - United States
RT_ICON
3
5.06374
38056
Latin 1 / Western European
English - United States
RT_ICON
4
5.0753
26600
Latin 1 / Western European
English - United States
RT_ICON
5
5.05818
21640
Latin 1 / Western European
English - United States
RT_ICON
6
4.99816
16936
Latin 1 / Western European
English - United States
RT_ICON
7
5.23464
9640
Latin 1 / Western European
English - United States
RT_ICON
8
5.27061
4264
Latin 1 / Western European
English - United States
RT_ICON
9
5.46201
1128
Latin 1 / Western European
English - United States
RT_ICON

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
9
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe csc.exe no specs cvtres.exe no specs #NJRAT regasm.exe b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe no specs csc.exe no specs cvtres.exe no specs regasm.exe no specs netsh.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2408"C:\Users\admin\AppData\Local\Temp\b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe" C:\Users\admin\AppData\Local\Temp\b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
4040"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\u5a1w52b.cmdline"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exeb7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
4.7.3062.0 built by: NET472REL1
2992C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RESA8CD.tmp" "c:\Users\admin\AppData\Local\Temp\CSCC5C87F2822C84A058811C367DF351AE.TMP"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
12.00.52519.0 built by: VSWINSERVICING
928"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Version:
4.7.3062.0 built by: NET472REL1
1036"C:\Users\admin\AppData\Local\Temp\b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe" C:\Users\admin\AppData\Local\Temp\b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exeb7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
User:
admin
Integrity Level:
MEDIUM
3784"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\dagprp5n.cmdline"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exeb7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
4.7.3062.0 built by: NET472REL1
1048C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RESB291.tmp" "c:\Users\admin\AppData\Local\Temp\CSC633FBA366CA545938181511167D53B55.TMP"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
12.00.52519.0 built by: VSWINSERVICING
2992"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeb7974b25-b68b-4ead-9051-d2c9ca9b51c1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Exit code:
0
Version:
4.7.3062.0 built by: NET472REL1
2332netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" "RegAsm.exe" ENABLEC:\Windows\system32\netsh.exeRegAsm.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Network Command Shell
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
542
Read events
419
Write events
0
Delete events
0

Modification events

No data
Executable files
1
Suspicious files
0
Text files
6
Unknown types
0

Dropped files

PID
Process
Filename
Type
4040csc.exeC:\Users\admin\AppData\Local\Temp\CSCC5C87F2822C84A058811C367DF351AE.TMP
MD5:
SHA256:
2992cvtres.exeC:\Users\admin\AppData\Local\Temp\RESA8CD.tmp
MD5:
SHA256:
4040csc.exeC:\Users\admin\AppData\Local\Temp\u5a1w52b.dll
MD5:
SHA256:
4040csc.exeC:\Users\admin\AppData\Local\Temp\u5a1w52b.out
MD5:
SHA256:
3784csc.exeC:\Users\admin\AppData\Local\Temp\CSC633FBA366CA545938181511167D53B55.TMP
MD5:
SHA256:
1048cvtres.exeC:\Users\admin\AppData\Local\Temp\RESB291.tmp
MD5:
SHA256:
3784csc.exeC:\Users\admin\AppData\Local\Temp\dagprp5n.dll
MD5:
SHA256:
3784csc.exeC:\Users\admin\AppData\Local\Temp\dagprp5n.out
MD5:
SHA256:
2408b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exeC:\Users\admin\AppData\Local\Temp\u5a1w52b.cmdlinetext
MD5:C6D5D98B5FEA698D8C1A8E1552590B5D
SHA256:39ED4A0B3F225DE4D6AD0AC6FA435D19AA056CBD0C34AF54902CEC5B2EA8C884
1036b7974b25-b68b-4ead-9051-d2c9ca9b51c1.exeC:\Users\admin\AppData\Local\Temp\dagprp5n.cmdlinetext
MD5:1F5453D6B2B2AC31190E2E4AE1DD8C3B
SHA256:29BB3547817FDFCAE909702E28DD4989AA216748E7E8614BE0380E66F0D84C22
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
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
928
RegAsm.exe
186.82.241.203:1991
toyotaserver.duckdns.org
Telmex Colombia S.A.
CO
malicious

DNS requests

Domain
IP
Reputation
toyotaserver.duckdns.org
  • 186.82.241.203
malicious

Threats

PID
Process
Class
Message
Misc activity
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
928
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT/Bladabindi
928
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT.Gen RAT outbound connection
4 ETPRO signatures available at the full report
No debug info