Overview

overview

10

Static

static

10

d859b1d8fd...8d.exe

windows7-x64

10

d859b1d8fd...8d.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 02:17

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    d859b1d8fd3dcec55a8710251592ae92f5da245e4028eeca281d64a8bb809b8d.exe

  • Size

    1.4MB

  • MD5

    ff789c89fca5743a145f628b60a0c21f

  • SHA1

    f2a1e038fc759459431423ae730bd4754185a829

  • SHA256

    d859b1d8fd3dcec55a8710251592ae92f5da245e4028eeca281d64a8bb809b8d

  • SHA512

    c1264ad90c70b2bf4de75a6a71eaa65c090cad71ccbfa0f0b310b5fcadcd9999be6e84e0f44eb14927a49336cd677376f4f949c01ed060451492fc4c56f93a84

  • SSDEEP

    24576:8j1/HA3kt+pPigWA6yWRGVBqCLnTRFb+:G/gTd/40BFnO

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Program Files directory 1 IoCs
  • 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 2 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d859b1d8fd3dcec55a8710251592ae92f5da245e4028eeca281d64a8bb809b8d.exe
    "C:\Users\Admin\AppData\Local\Temp\d859b1d8fd3dcec55a8710251592ae92f5da245e4028eeca281d64a8bb809b8d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Users\Admin\AppData\LocalfJEcgmoXfL.exe
      "C:\Users\Admin\AppData\LocalfJEcgmoXfL.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:1780
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\LocalfJEcgmoXfL.exe" "LocalfJEcgmoXfL.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:920
    • C:\Users\Admin\AppData\LocalOZZgHlhaSi..exe
      "C:\Users\Admin\AppData\LocalOZZgHlhaSi..exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2376
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\LocalOZZgHlhaSi..exe" MD5 | find /i /v "md5" | find /i /v "certutil"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5044
        • C:\Windows\system32\certutil.exe
          certutil -hashfile "C:\Users\Admin\AppData\LocalOZZgHlhaSi..exe" MD5
          4⤵
            PID:1172
          • C:\Windows\system32\find.exe
            find /i /v "md5"
            4⤵
              PID:1884
            • C:\Windows\system32\find.exe
              find /i /v "certutil"
              4⤵
                PID:4848

        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

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalOZZgHlhaSi..exe
          Filesize

          1.3MB

          MD5

          b6141ed6f498e12d7153defb0e87a63e

          SHA1

          07e9c34409c887cba056864eb2a0d3c54c46c18d

          SHA256

          ab4efa0b080e675fd467089e5c23c729d5093a6818c910e7ed0e3109a1eee692

          SHA512

          66df46a7875704ffb5abc98c4923902d6ae0b5f6263d9fa66057eccd3522f96917e215123c38a2401d89f45a2a81d22b4cb3f3d3e8dacea671c2004752977c36

          Download Submit

        • C:\Users\Admin\AppData\LocalfJEcgmoXfL.exe
          Filesize

          23KB

          MD5

          134f88aa6c41f8acea8d010ad2eb0721

          SHA1

          dcdbc2d74c8364e359ba74d7940903ac9049c15a

          SHA256

          f1c1330ec3a270924ac2473d2a37547b68250188447f3f8b647bc8a8fa13395f

          SHA512

          1341b9c7dcc1573067ee66b37dd870626a640a2d649c16b8eb5cd612ab69e18b16c9e1101b080f858d5a4e5ec3bf1d85c0842bcbc9fe749210e41039a63a68ca

          Download Submit

        • memory/1080-0-0x00007FF955405000-0x00007FF955406000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1080-1-0x00007FF955150000-0x00007FF955AF1000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/1080-3-0x00007FF955150000-0x00007FF955AF1000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/1080-20-0x00007FF955150000-0x00007FF955AF1000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/1780-21-0x0000000075432000-0x0000000075433000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1780-22-0x0000000075430000-0x00000000759E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/1780-39-0x0000000075432000-0x0000000075433000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1780-41-0x0000000075430000-0x00000000759E1000-memory.dmp

          Filesize

          5.7MB

          Download