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File name:

12345.exe

Full analysis: https://app.any.run/tasks/7f888089-5cf4-4f40-990d-70fceaab758c
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: January 24, 2022, 23:58:23
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:

99F2F74CCF0EB78091E682678EA8F8F3

SHA1:

4BA5332B522CF18CAACA940991428BBA2AB74E93

SHA256:

2E97939D365087C444A6AF37FF864D716AF25E79F736DB1D90D794DD622A3D12

SSDEEP:

384:LZy/INU1SoycwJORpvWhYY4GMiELvho8Gzz0Iij+ZsNO3PlpJKkkjh/TzF7pWnCV:lvqglcwJkxXlZoHuXQ/oH/+L

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

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
    • NJRAT was detected

      • 12345.exe (PID: 3576)
    • Connects to CnC server

      • 12345.exe (PID: 3576)
    • Application was dropped or rewritten from another process

      • .exe (PID: 1552)
    • Drops executable file immediately after starts

      • .exe (PID: 1552)
    • Changes the autorun value in the registry

      • 12345.exe (PID: 3576)
  • SUSPICIOUS

    • Reads the computer name

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
    • Checks supported languages

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
    • Drops a file with a compile date too recent

      • 12345.exe (PID: 3576)
    • Creates files in the user directory

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
    • Executable content was dropped or overwritten

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
    • Drops a file that was compiled in debug mode

      • 12345.exe (PID: 3576)
      • .exe (PID: 1552)
  • INFO

    • Reads the computer name

      • taskmgr.exe (PID: 956)
    • Checks supported languages

      • taskmgr.exe (PID: 2528)
      • taskmgr.exe (PID: 956)
    • Manual execution by user

      • taskmgr.exe (PID: 2528)
      • taskmgr.exe (PID: 956)
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: 2022:01:25 00:57:23+01:00
PEType: PE32
LinkerVersion: 8
CodeSize: 41984
InitializedDataSize: 1536
UninitializedDataSize: -
EntryPoint: 0xc37e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 24-Jan-2022 23:57:23

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: 24-Jan-2022 23:57:23
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
0x0000A384
0x0000A400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.69876
.rsrc
0x0000E000
0x00000400
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.51607
.reloc
0x00010000
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
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
38
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start #NJRAT 12345.exe .exe taskmgr.exe no specs taskmgr.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3576"C:\Users\admin\AppData\Local\Temp\12345.exe" C:\Users\admin\AppData\Local\Temp\12345.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
1552"C:\Users\admin\AppData\Local\Temp\.exe" C:\Users\admin\AppData\Local\Temp\.exe
12345.exe
User:
admin
Integrity Level:
MEDIUM
2528"C:\Windows\system32\taskmgr.exe" /4C:\Windows\system32\taskmgr.exeExplorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Task Manager
Exit code:
4294967295
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
956"C:\Windows\system32\taskmgr.exe" /4C:\Windows\system32\taskmgr.exeExplorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Task Manager
Exit code:
4294967295
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
1 851
Read events
1 608
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
357612345.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exeexecutable
MD5:99F2F74CCF0EB78091E682678EA8F8F3
SHA256:2E97939D365087C444A6AF37FF864D716AF25E79F736DB1D90D794DD622A3D12
1552.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Anti.exeexecutable
MD5:B21947A28760750689F46E071D575D07
SHA256:F643AB116E7BD8515032A502B8700AFB5BDBFC08FC1CAA08817B3061E98B763E
357612345.exeC:\Users\admin\AppData\Local\Temp\.exeexecutable
MD5:B21947A28760750689F46E071D575D07
SHA256:F643AB116E7BD8515032A502B8700AFB5BDBFC08FC1CAA08817B3061E98B763E
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
3576
12345.exe
3.13.191.225:14722
0.tcp.ngrok.io
US
malicious

DNS requests

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

Threats

PID
Process
Class
Message
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
3576
12345.exe
A Network Trojan was detected
ET TROJAN Generic njRAT/Bladabindi CnC Activity (ll)
17 ETPRO signatures available at the full report
No debug info