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File name:

gameservers.exe

Full analysis: https://app.any.run/tasks/06f956b1-0dc8-4663-8a81-b4041958906a
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: January 24, 2022, 20:43:49
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:

C5879B0E11C48DFBE4318E886AF8CED9

SHA1:

34A5DF3F6BCCF6296750869852F1D7FEB1BE30DB

SHA256:

9ACE6F918C300E2D5465534C26F265C181919B4844AB58691BD9E615479AC651

SSDEEP:

1536:kGnJD/HBZbszKu9AZpd7r1jEwzGi1dDKDSgS:kGmzK4AZ3HCi1d83

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: 3792)

    • Uses Task Scheduler to run other applications

      • server.exe (PID: 3792)

    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 2800)

    • NJRAT was detected

      • server.exe (PID: 3792)

    • Connects to CnC server

      • server.exe (PID: 3792)

    • Drops executable file immediately after starts

      • tmp912C.tmp.exe (PID: 2036)

    • Application was dropped or rewritten from another process

      • tmp912C.tmp.exe (PID: 1668)
      • tmp912C.tmp.exe (PID: 2036)

    • Changes the login/logoff helper path in the registry

      • tmp912C.tmp.exe (PID: 1668)

    • Changes the autorun value in the registry

      • tmp912C.tmp.exe (PID: 1668)

  • SUSPICIOUS

    • Checks supported languages

      • gameservers.exe (PID: 3104)
      • server.exe (PID: 3792)
      • StUpdate.exe (PID: 2024)
      • tmp912C.tmp.exe (PID: 2036)
      • StUpdate.exe (PID: 2536)
      • tmp912C.tmp.exe (PID: 1668)

    • Reads the computer name

      • server.exe (PID: 3792)
      • gameservers.exe (PID: 3104)
      • StUpdate.exe (PID: 2024)
      • StUpdate.exe (PID: 2536)
      • tmp912C.tmp.exe (PID: 1668)
      • tmp912C.tmp.exe (PID: 2036)

    • Creates files in the user directory

      • gameservers.exe (PID: 3104)
      • server.exe (PID: 3792)

    • Reads Environment values

      • netsh.exe (PID: 4012)
      • netsh.exe (PID: 2628)
      • netsh.exe (PID: 2676)
      • server.exe (PID: 3792)

    • Starts itself from another location

      • gameservers.exe (PID: 3104)

    • Uses NETSH.EXE for network configuration

      • server.exe (PID: 3792)

    • Drops a file with a compile date too recent

      • gameservers.exe (PID: 3104)
      • server.exe (PID: 3792)

    • Executable content was dropped or overwritten

      • gameservers.exe (PID: 3104)
      • server.exe (PID: 3792)
      • tmp912C.tmp.exe (PID: 2036)

    • Executed via Task Scheduler

      • StUpdate.exe (PID: 2024)
      • StUpdate.exe (PID: 2536)
      • StUpdate.exe (PID: 3920)
      • StUpdate.exe (PID: 3292)

    • Drops a file with too old compile date

      • server.exe (PID: 3792)
      • tmp912C.tmp.exe (PID: 2036)

  • INFO

    • Checks supported languages

      • netsh.exe (PID: 4012)
      • netsh.exe (PID: 2676)
      • schtasks.exe (PID: 2800)
      • netsh.exe (PID: 2628)

    • Reads the computer name

      • netsh.exe (PID: 4012)
      • netsh.exe (PID: 2676)
      • schtasks.exe (PID: 2800)
      • netsh.exe (PID: 2628)
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: 2022:01:24 21:32:17+01:00
PEType: PE32
LinkerVersion: 8
CodeSize: 94208
InitializedDataSize: 512
UninitializedDataSize: -
EntryPoint: 0x18f1e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 24-Jan-2022 20:32:17

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: 24-Jan-2022 20:32:17
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
0x00016F24
0x00017000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.5957
.reloc
0x0001A000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
58
Monitored processes
12
Malicious processes
3
Suspicious processes
1

Behavior graph

Click at the process to see the details
drop and start start drop and start drop and start gameservers.exe #NJRAT server.exe netsh.exe no specs netsh.exe no specs netsh.exe no specs schtasks.exe no specs stupdate.exe no specs stupdate.exe stupdate.exe no specs stupdate.exe tmp912c.tmp.exe tmp912c.tmp.exe

Process information

PID
CMD
Path
Indicators
Parent process
3104"C:\Users\admin\AppData\Local\Temp\gameservers.exe" C:\Users\admin\AppData\Local\Temp\gameservers.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3792"C:\Users\admin\AppData\Local\Temp\server.exe" C:\Users\admin\AppData\Local\Temp\server.exe
gameservers.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
1073807364
4012netsh 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)
2628netsh firewall delete allowedprogram "C:\Users\admin\AppData\Local\Temp\server.exe"C:\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)
2676netsh 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)
2800schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\admin\AppData\Local\Temp/StUpdate.exeC:\Windows\system32\schtasks.exe—server.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Manages scheduled tasks
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3920C:\Users\admin\AppData\Local\Temp/StUpdate.exe C:\Users\admin\AppData\Local\Temp\StUpdate.exe—taskeng.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
2024C:\Users\admin\AppData\Local\Temp/StUpdate.exe C:\Users\admin\AppData\Local\Temp\StUpdate.exe
taskeng.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
3292C:\Users\admin\AppData\Local\Temp/StUpdate.exe C:\Users\admin\AppData\Local\Temp\StUpdate.exe—taskeng.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
2536C:\Users\admin\AppData\Local\Temp/StUpdate.exe C:\Users\admin\AppData\Local\Temp\StUpdate.exe
taskeng.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Total events
4 525
Read events
4 343
Write events
182
Delete events
0

Modification events

(PID) Process:(3104) gameservers.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(3104) gameservers.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(3104) gameservers.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(3104) gameservers.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(3792) server.exeKey:HKEY_CURRENT_USER\Environment
Operation:writeName:SEE_MASK_NOZONECHECKS
Value:
1
(PID) Process:(4012) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(4012) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-100
Value:
DHCP Quarantine Enforcement Client
(PID) Process:(4012) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-101
Value:
Provides DHCP based enforcement for NAP
(PID) Process:(4012) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-103
Value:
1.0
(PID) Process:(4012) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-102
Value:
Microsoft Corporation
Executable files
28
Suspicious files
1
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3792server.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exeexecutable
MD5:C5879B0E11C48DFBE4318E886AF8CED9
SHA256:9ACE6F918C300E2D5465534C26F265C181919B4844AB58691BD9E615479AC651
3792server.exeC:\Users\admin\AppData\Local\Temp\tmp912C.tmp.exeexecutable
MD5:FE78B5C47F75EAC80F11A93EFC395D7D
SHA256:478FC328084778345F3D5DC209D9C6EE93F737A11D5836A2A1ADF39CCDE9A0A5
3792server.exeC:\Users\admin\AppData\Local\Temp\StUpdate.exeexecutable
MD5:C5879B0E11C48DFBE4318E886AF8CED9
SHA256:9ACE6F918C300E2D5465534C26F265C181919B4844AB58691BD9E615479AC651
2036tmp912C.tmp.exeC:\Users\admin\AppData\Local\Temp\3582-490\tmp912C.tmp.exeexecutable
MD5:1DB40596B67BF143CDF48DEE712B951C
SHA256:D06D1BECEEDB3AFA8B81F163C75DE71396D43143AA7AED9EB0209CA0BFE404F9
3104gameservers.exeC:\Users\admin\AppData\Local\Temp\server.exeexecutable
MD5:C5879B0E11C48DFBE4318E886AF8CED9
SHA256:9ACE6F918C300E2D5465534C26F265C181919B4844AB58691BD9E615479AC651
3792server.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b8f0ea7d3eefb943b65713c8e9cf0e80Windows Update.exeexecutable
MD5:C5879B0E11C48DFBE4318E886AF8CED9
SHA256:9ACE6F918C300E2D5465534C26F265C181919B4844AB58691BD9E615479AC651
2036tmp912C.tmp.exeC:\MSOCache\All Users\{90140000-003D-0000-0000-0000000FF1CE}-C\setup.exeexecutable
MD5:566ED4F62FDC96F175AFEDD811FA0370
SHA256:E17CD94C08FC0E001A49F43A0801CEA4625FB9AEE211B6DFEBEBEC446C21F460
3104gameservers.exeC:\Users\admin\AppData\Roaming\apptext
MD5:8FC22F973BEC7F0525710DCF02F05EDF
SHA256:BA0E21CEB11B1EC62709B0141373CE65DE5A156B822C9B6D3C3F9ED9AB224A46
2036tmp912C.tmp.exeC:\MSOCache\All Users\{90140000-0100-040C-0000-0000000FF1CE}-C\setup.exeexecutable
MD5:566ED4F62FDC96F175AFEDD811FA0370
SHA256:E17CD94C08FC0E001A49F43A0801CEA4625FB9AEE211B6DFEBEBEC446C21F460
2036tmp912C.tmp.exeC:\MSOCache\All Users\{90140000-006E-0410-0000-0000000FF1CE}-C\DW20.EXEexecutable
MD5:02EE6A3424782531461FB2F10713D3C1
SHA256:EAD58C483CB20BCD57464F8A4929079539D634F469B213054BF737D227C026DC
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
0
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
3792
server.exe
37.1.208.100:1156
—
Swiftway Sp. z o.o.
US
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
3792
server.exe
A Network Trojan was detected
ET TROJAN Generic njRAT/Bladabindi CnC Activity (ll)
3792
server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback (Remote Desktop)
3792
server.exe
A Network Trojan was detected
ET TROJAN njrat ver 0.7d Malware CnC Callback (Remote Desktop)
1 ETPRO signatures available at the full report
No debug info
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Reports
gameservers.exe