Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 01:24

General

  • Target

    38640fc973c8e68e7b328afa24290930N.exe

  • Size

    115KB

  • MD5

    38640fc973c8e68e7b328afa24290930

  • SHA1

    bf5e6970ea894aa8c74c0d738bfd51102215708c

  • SHA256

    3750ec187b939572bc252d9c9c5a132435f20d6a16fbeea0b3269106a8094b8f

  • SHA512

    9418d3b08e0760c42f04f4fc272921b2e39135cba3885c8b68953e9cdb553dc59665a0bcde140ed4851700d671eaa535d092d174a62be03971e5d1b1a1c1a648

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDIv:P5eznsjsguGDFqGZ2rDIv

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38640fc973c8e68e7b328afa24290930N.exe
    "C:\Users\Admin\AppData\Local\Temp\38640fc973c8e68e7b328afa24290930N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4556
    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
      "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4520
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5052
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

    Filesize

    400B

    MD5

    0a9b4592cd49c3c21f6767c2dabda92f

    SHA1

    f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

    SHA256

    c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

    SHA512

    6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

  • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

    Filesize

    115KB

    MD5

    8231277f3444dc727ac5725d19142ec2

    SHA1

    17f0d0c9db7f2fffb19793759fa1472d7790ccbe

    SHA256

    484a9df55fc6826b04c7b634d711fb8c1834b794893b96861a9b53f2bec5c30c

    SHA512

    cbb215d006ea5fdb0dfe0019826f0304da4c75805d982c984ee997b503a4b5419943f993eb3c221bf7a7e63b6da02e56aa754c05453461605b638c2bacf450a3

  • memory/4520-19-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/4520-18-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/4520-24-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/4556-2-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/4556-17-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/4556-0-0x00000000754B2000-0x00000000754B3000-memory.dmp

    Filesize

    4KB

  • memory/4556-1-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/5052-20-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/5052-25-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/5052-26-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/5052-27-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

  • memory/5052-28-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB