Analysis

  • max time kernel
    29s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    20-07-2024 06:13

General

  • Target

    5aa54b79bb6bc959592bd0d44072aa20N.exe

  • Size

    146KB

  • MD5

    5aa54b79bb6bc959592bd0d44072aa20

  • SHA1

    394f4699e128e7eb94a83159f207c544c1225a2a

  • SHA256

    f931c3d38402a25748eae9af54bb639e33d9b318f26550eb2ebd56abac3cf30e

  • SHA512

    4081583e7a27d0c889048acab00f692d0a8eda031aae3e6dd7a36e1f81e6c0a3d016ba421f1184670853829d398c20d86c4acda7d5bf70fa2f925ade2b88ef9f

  • SSDEEP

    3072:9FXJCIuvvEyaoQdOLBB9jO/BK0h7KcdxrgKaQG5IPKOFwXhc0brb:9FXJ9uvvRUOLBOJscnrgKa75IyOFwRc+

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

An0nym0us

C2

faizich.noip.me:100

Mutex

526da8c3cf38c27132d513f653a25a62

Attributes
  • reg_key

    526da8c3cf38c27132d513f653a25a62

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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.

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aa54b79bb6bc959592bd0d44072aa20N.exe
    "C:\Users\Admin\AppData\Local\Temp\5aa54b79bb6bc959592bd0d44072aa20N.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\system32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:2764
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2724 -s 652
        3⤵
          PID:2692

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\svchost.exe

      Filesize

      146KB

      MD5

      5aa54b79bb6bc959592bd0d44072aa20

      SHA1

      394f4699e128e7eb94a83159f207c544c1225a2a

      SHA256

      f931c3d38402a25748eae9af54bb639e33d9b318f26550eb2ebd56abac3cf30e

      SHA512

      4081583e7a27d0c889048acab00f692d0a8eda031aae3e6dd7a36e1f81e6c0a3d016ba421f1184670853829d398c20d86c4acda7d5bf70fa2f925ade2b88ef9f

    • memory/2028-3-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2028-2-0x00000000003C0000-0x00000000003E4000-memory.dmp

      Filesize

      144KB

    • memory/2028-0-0x000007FEF6003000-0x000007FEF6004000-memory.dmp

      Filesize

      4KB

    • memory/2028-4-0x00000000003F0000-0x0000000000416000-memory.dmp

      Filesize

      152KB

    • memory/2028-5-0x0000000002120000-0x0000000002144000-memory.dmp

      Filesize

      144KB

    • memory/2028-1-0x0000000000A00000-0x0000000000A2A000-memory.dmp

      Filesize

      168KB

    • memory/2028-14-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2724-12-0x0000000000370000-0x0000000000394000-memory.dmp

      Filesize

      144KB

    • memory/2724-11-0x0000000000040000-0x000000000006A000-memory.dmp

      Filesize

      168KB

    • memory/2724-13-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2724-15-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

      Filesize

      9.9MB

    • memory/2724-17-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

      Filesize

      9.9MB