Overview

overview

10

Static

static

3

JaffaCakes...41.exe

windows7-x64

10

JaffaCakes...41.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 20:39

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General

  • Target

    JaffaCakes118_35acb7e50a551cbcf2c585ab4311ea41.exe

  • Size

    276KB

  • MD5

    35acb7e50a551cbcf2c585ab4311ea41

  • SHA1

    d9e0cca3ec9a72cab8cad60d69ea8be6904200d8

  • SHA256

    a31ff3297dcdc70210bbc21f99c7d12ff9b3f9ef84c441c2ab737bd8e0d95bbb

  • SHA512

    ac5141544b1cb29001b150035fc55f44638aa271a57e583e94600cac6af2d880c3ffefdd452954cbe4298343306d91358a0111c9756e92cb2e39290361499ff6

  • SSDEEP

    768:3fPqh5bt7kn8s2zVKtdeTMDlth84uZqdWHjhEGYu1+Eb8pqaI+zYig0VKNfrx+mV:hg6sN6Q

Score
10/10
njratdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Njrat family
    njrat
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_35acb7e50a551cbcf2c585ab4311ea41.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_35acb7e50a551cbcf2c585ab4311ea41.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2804

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Defense Evasion

        Impair Defenses

        1
        T1562

        Disable or Modify System Firewall

        1
        T1562.004

        Modify Registry

        1
        T1112

        Credential Access

        Discovery

        System Information Discovery

        1
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        • \Users\Admin\AppData\Local\Temp\WindowsServices.exe
          Filesize

          276KB

          MD5

          35acb7e50a551cbcf2c585ab4311ea41

          SHA1

          d9e0cca3ec9a72cab8cad60d69ea8be6904200d8

          SHA256

          a31ff3297dcdc70210bbc21f99c7d12ff9b3f9ef84c441c2ab737bd8e0d95bbb

          SHA512

          ac5141544b1cb29001b150035fc55f44638aa271a57e583e94600cac6af2d880c3ffefdd452954cbe4298343306d91358a0111c9756e92cb2e39290361499ff6

          Download Submit

        • memory/2004-0-0x0000000074F21000-0x0000000074F22000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2004-1-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/2004-2-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/2004-10-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/2004-11-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3028-13-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3028-12-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3028-15-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3028-16-0x0000000074F20000-0x00000000754CB000-memory.dmp

          Filesize

          5.7MB

          Download