Overview

overview

10

Static

static

3

481df2d1bb...9N.exe

windows7-x64

10

481df2d1bb...9N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2025, 12:10

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General

  • Target

    481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe

  • Size

    56KB

  • MD5

    4b6b9b9078efdea1d767e1bb8076e570

  • SHA1

    2cefdc00441bab34f9026172fc4d19c15059b5c5

  • SHA256

    481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469

  • SHA512

    a38c4d9576e6f15341900a1e75057c0e0cc078ee3b3a8ce529a158d494c3a8067f79ba90f85d8a8d591c497a96130a451395efbafd087fc347e29fbd9b57188d

  • SSDEEP

    1536:XvvqylRHMH/Jtakr8KCxEhDYcEb08+D9V2vPscW:fvVa+krSxuDIvi9+Psb

Score
10/10
njratevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Njrat family
    njrat
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
    "C:\Users\Admin\AppData\Local\Temp\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2424
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2816
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /rl highest /tn "481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N" /tr "C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2584
    • C:\Windows\system32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe" "481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:2476
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3BC7D728-6FF5-4EE8-8FB2-3CCB10E9B661} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
      C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
    • C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
      C:\ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
    Filesize

    7KB

    MD5

    30bf3d2c07b0615511a3ad647bd75e62

    SHA1

    3c7f82d777cf6bdfb024ff787a0e41dc27ff3e16

    SHA256

    fcd9f17c325fdec04f86bff064f4a18aa400bd0eff7ab9df5cbfeecf14a8fb35

    SHA512

    05d1217c77d18ebe6094b8b9a14f241c9e895d7a450a2a96108d70c6a9733e45118192b87d4d0a0b035fbd4222cae83ce539f022725ac5a726b1d232f1c31893

    Download Submit

  • \ProgramData\481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469N.exe
    Filesize

    56KB

    MD5

    4b6b9b9078efdea1d767e1bb8076e570

    SHA1

    2cefdc00441bab34f9026172fc4d19c15059b5c5

    SHA256

    481df2d1bb42c75a91ad8a3fe9d1851ba3d05080d3d901101cc994f3040b6469

    SHA512

    a38c4d9576e6f15341900a1e75057c0e0cc078ee3b3a8ce529a158d494c3a8067f79ba90f85d8a8d591c497a96130a451395efbafd087fc347e29fbd9b57188d

    Download Submit

  • memory/2380-25-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/2380-1-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/2380-2-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/2380-0-0x000007FEF5E0E000-0x000007FEF5E0F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2380-27-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/2380-26-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/2380-23-0x000000001E700000-0x000000001E70E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/2380-24-0x000007FEF5E0E000-0x000007FEF5E0F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2424-7-0x000000001B710000-0x000000001B9F2000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/2424-8-0x0000000001F00000-0x0000000001F08000-memory.dmp

    Filesize

    32KB

    Download

  • memory/2816-15-0x0000000002240000-0x0000000002248000-memory.dmp

    Filesize

    32KB

    Download

  • memory/2816-14-0x000000001B700000-0x000000001B9E2000-memory.dmp

    Filesize

    2.9MB

    Download