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File name:

Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe

Full analysis: https://app.any.run/tasks/01752872-9b27-44c7-95c6-54f71beabdc1
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: October 19, 2020, 21:08:17
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
rat
njrat
bladabindi
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

EF419EE7F4544B18BD98D9E7407ACC25

SHA1:

E5FA26794660AD49A0F01242B49EAE4572749F9C

SHA256:

880A105C155960B4716B2A958DE62FBD095B7CFDC0E2E6F38AEC6953AEF0BCC2

SSDEEP:

768:xY32Cbc36s5hSX+jthCG8gsrIXKsFoTfFAO7sXxrjEtCdnl2pi1Rz4Rk30sGdpH3:BCI315jthfls6CABjEwzGi1dDsDHgS

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

      • server.exe (PID: 2236)
    • Connects to CnC server

      • server.exe (PID: 2236)
    • NJRAT was detected

      • server.exe (PID: 2236)
  • SUSPICIOUS

    • Creates files in the user directory

      • server.exe (PID: 2236)
      • Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe (PID: 2536)
    • Uses NETSH.EXE for network configuration

      • server.exe (PID: 2236)
    • Executable content was dropped or overwritten

      • server.exe (PID: 2236)
      • Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe (PID: 2536)
    • Starts itself from another location

      • Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe (PID: 2536)
  • 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.) (56.7)
.exe | Win64 Executable (generic) (21.3)
.scr | Windows screen saver (10.1)
.dll | Win32 Dynamic Link Library (generic) (5)
.exe | Win32 Executable (generic) (3.4)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x192ae
UninitializedDataSize: -
InitializedDataSize: 512
CodeSize: 95232
LinkerVersion: 8
PEType: PE32
TimeStamp: 2020:10:19 23:07:20+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 19-Oct-2020 21:07:20

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: 2
Time date stamp: 19-Oct-2020 21:07:20
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
0x000172B4
0x00017400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.60474
.reloc
0x0001A000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
44
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe #NJRAT server.exe netsh.exe no specs netsh.exe no specs netsh.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2536"C:\Users\admin\AppData\Local\Temp\Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe" C:\Users\admin\AppData\Local\Temp\Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
2236"C:\Users\admin\AppData\Local\Temp\server.exe" C:\Users\admin\AppData\Local\Temp\server.exe
Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exe
User:
admin
Integrity Level:
MEDIUM
1608netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\server.exe" "server.exe" ENABLEC:\Windows\system32\netsh.exeserver.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)
2940netsh firewall delete allowedprogram "C:\Users\admin\AppData\Local\Temp\server.exe"C:\Windows\system32\netsh.exeserver.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)
1084netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\server.exe" "server.exe" ENABLEC:\Windows\system32\netsh.exeserver.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
562
Read events
415
Write events
0
Delete events
0

Modification events

No data
Executable files
3
Suspicious files
0
Text files
2
Unknown types
0

Dropped files

PID
Process
Filename
Type
2236server.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d24db49f14691ac2d00607724e3ac559Windows Update.exeexecutable
MD5:EF419EE7F4544B18BD98D9E7407ACC25
SHA256:880A105C155960B4716B2A958DE62FBD095B7CFDC0E2E6F38AEC6953AEF0BCC2
2236server.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exeexecutable
MD5:EF419EE7F4544B18BD98D9E7407ACC25
SHA256:880A105C155960B4716B2A958DE62FBD095B7CFDC0E2E6F38AEC6953AEF0BCC2
2536Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exeC:\Users\admin\AppData\Local\Temp\server.exeexecutable
MD5:EF419EE7F4544B18BD98D9E7407ACC25
SHA256:880A105C155960B4716B2A958DE62FBD095B7CFDC0E2E6F38AEC6953AEF0BCC2
2536Servnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnner.exeC:\Users\admin\AppData\Roaming\apptext
MD5:2099BB64FD1770D321DF364F99B658D1
SHA256:D53CE6BDBD0C3CB4596AC3103F15824570A9858DA95F63CEDF64CEC11DC44E2D
2236server.exeC:\Users\admin\AppData\Roaming\apptext
MD5:2099BB64FD1770D321DF364F99B658D1
SHA256:D53CE6BDBD0C3CB4596AC3103F15824570A9858DA95F63CEDF64CEC11DC44E2D
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
2
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
2236
server.exe
3.13.191.225:16863
0.tcp.ngrok.io
US
malicious
2236
server.exe
3.22.30.40:16863
0.tcp.ngrok.io
US
malicious

DNS requests

Domain
IP
Reputation
0.tcp.ngrok.io
  • 3.22.30.40
  • 3.13.191.225
shared

Threats

PID
Process
Class
Message
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
2236
server.exe
A Network Trojan was detected
ET TROJAN Bladabindi/njRAT CnC Command (ll)
2236
server.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT/Bladabindi
2236
server.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT.Gen RAT outbound connection
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
2236
server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback (Remote Desktop)
2 ETPRO signatures available at the full report
No debug info