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File name:

Server.exe

Full analysis: https://app.any.run/tasks/ee55cac8-2535-47d4-8463-61a2cb11e922
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.

Malware Trends Tracker     >>>
Analysis date: October 19, 2020, 23:24:53
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:

744B1C6313B7BF8E251FDE40F21D2F77

SHA1:

48D4EC35AEC05321B44B5831483E81B73E6F5213

SHA256:

9125A639046A0B0F93C8CAAFAE6E0E5A177A958A6F82DB7681F70AFF262F9937

SSDEEP:

384:sinjkitqZf5W9cTYXyc/hTMSgz3Rd+n/6pnrAF+rMRTyN/0L+EcoinblneHQM3eM:hnSjjTYic/hAD+/6lrM+rMRa8Nui/t

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

    • NJRAT was detected

      • Server.exe (PID: 3092)

    • Changes the autorun value in the registry

      • Server.exe (PID: 3092)
      • tmp7B0.tmp.exe (PID: 2644)

    • Writes to a start menu file

      • Server.exe (PID: 3092)

    • Connects to CnC server

      • Server.exe (PID: 3092)

    • Application was dropped or rewritten from another process

      • tmp7B0.tmp.exe (PID: 2644)

  • SUSPICIOUS

    • Uses NETSH.EXE for network configuration

      • Server.exe (PID: 3092)

    • Executable content was dropped or overwritten

      • Server.exe (PID: 3092)

    • Creates files in the user directory

      • Server.exe (PID: 3092)

    • Uses TASKKILL.EXE to kill process

      • Server.exe (PID: 3092)

  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2692)

    • Manual execution by user

      • WINWORD.EXE (PID: 2692)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2692)
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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2020:10:20 01:23:37+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 35840
InitializedDataSize: 1536
UninitializedDataSize: -
EntryPoint: 0xabbe
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 19-Oct-2020 23:23:37

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: 19-Oct-2020 23:23:37
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
0x00008BC4
0x00008C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.60296
.rsrc
0x0000C000
0x00000240
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.96877
.reloc
0x0000E000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0815394

Resources

Title
Entropy
Size
Codepage
Language
Type
1
4.96801
487
Latin 1 / Western European
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
5
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
drop and start start #NJRAT server.exe netsh.exe no specs taskkill.exe no specs winword.exe no specs tmp7b0.tmp.exe

Process information

PID
CMD
Path
Indicators
Parent process
3092"C:\Users\admin\AppData\Local\Temp\Server.exe" C:\Users\admin\AppData\Local\Temp\Server.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
2556netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLEC:\Windows\system32\netsh.exe—Server.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)
2896taskkill /F /IM Exsample.exeC:\Windows\system32\taskkill.exe—Server.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
128
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2692"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\steelsystems.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Version:
14.0.6024.1000
2644"C:\Users\admin\AppData\Local\Temp\tmp7B0.tmp.exe" C:\Users\admin\AppData\Local\Temp\tmp7B0.tmp.exe
Server.exe
User:
admin
Integrity Level:
MEDIUM
Total events
1 863
Read events
1 067
Write events
0
Delete events
0

Modification events

No data
Executable files
2
Suspicious files
0
Text files
2
Unknown types
4

Dropped files

PID
Process
Filename
Type
2692WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVRD90F.tmp.cvr —
MD5:—
SHA256:—
2692WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\steelsystems.rtf.LNKlnk
MD5:8DDAE18BABF87E9A4512AC915C28813F
SHA256:DB107B191C3DE261E534919F743508CEBE0C14EC384869F19A29F61DC36C030A
3092Server.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47d25969baef00b5814edbf8414c4044.exeexecutable
MD5:744B1C6313B7BF8E251FDE40F21D2F77
SHA256:9125A639046A0B0F93C8CAAFAE6E0E5A177A958A6F82DB7681F70AFF262F9937
2692WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.datini
MD5:5F976FCA971B210E7CD86C03A1136779
SHA256:278AA229317FF4EC5F78A3C4C19BE3B29A2782E6371097A3E3B91C4576A7054C
3092Server.exeC:\Users\admin\AppData\Local\Temp\tmp7B0.tmp.exeexecutable
MD5:786F557E9407BF72E735D958735FF330
SHA256:4A61FB72109DD8A02F93789319C021C8170F1BF3529E3EEDD444D80947D833F6
2692WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:4FA5A1548ACECE891EE4FD0878C47C6F
SHA256:61AC843BC3697103F719B520A6BE482FF905AAA1AD2E95DB42F1390DEE8BF57F
2692WINWORD.EXEC:\Users\admin\Desktop\~$eelsystems.rtfpgc
MD5:02A4FFA40FC4F9AF65014B62F4908607
SHA256:D884412749101D3E7BDF461EBDACB26E7CFC3FF9C0E70437601EC355A6CE1245
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
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
3092
Server.exe
3.17.7.232:16863
0.tcp.ngrok.io
—
US
malicious

DNS requests

Domain
IP
Reputation
0.tcp.ngrok.io
  • 3.17.7.232
shared

Threats

PID
Process
Class
Message
—
—
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
3092
Server.exe
A Network Trojan was detected
ET TROJAN Bladabindi/njRAT CnC Command (ll)
3092
Server.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT/Bladabindi
3092
Server.exe
A Network Trojan was detected
MALWARE [PTsecurity] njRAT.Gen RAT outbound connection
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback (Remote Desktop)
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
3092
Server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
7 ETPRO signatures available at the full report
No debug info
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Reports
Server.exe