Analysis

  • max time kernel
    115s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-08-2024 11:41

General

  • Target

    4f26497520ca3310f7f99cbfd80be1e0N.exe

  • Size

    115KB

  • MD5

    4f26497520ca3310f7f99cbfd80be1e0

  • SHA1

    e779f19cc46f61a72a94e8fc01c223dc8e2180ea

  • SHA256

    0d1405c3eb6cd4d76d02265d9f9259eaa13e37d3a16df0268bc8a0f060eff0ee

  • SHA512

    584b1ba8dbfe6014f718b438876ab02151dafde04bbe69c24373f3a7ce4804c363d3bf79e778672b5e24e3cbf9330eef35b437cf8297cd120f68be6725500889

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMdehOf:P5eznsjsguGDFqGZ2rYC

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\4f26497520ca3310f7f99cbfd80be1e0N.exe
    "C:\Users\Admin\AppData\Local\Temp\4f26497520ca3310f7f99cbfd80be1e0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1924
    • 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:1964
      • 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:3320
        • 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:1644

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

    4325cfe9ac7b28766e0ee27e2c0d173c

    SHA1

    b9404b66af3f825cf4b17441c10285805d873dd8

    SHA256

    33f38eba8dd6384cbba064f8d7525cde15074fa88ad44432cfc5518152881056

    SHA512

    fbd856de6d71e7926671dfec4e5e7ee2fd58e874020149ee183dca1d9210e0b366e3df22785da2e927c9a321702070025aea3b037ca762529949dea1ed4da38d

  • memory/1924-20-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-6-0x0000000074FD2000-0x0000000074FD3000-memory.dmp

    Filesize

    4KB

  • memory/1924-7-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-2-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-19-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-1-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-0-0x0000000074FD2000-0x0000000074FD3000-memory.dmp

    Filesize

    4KB

  • memory/1964-22-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1964-21-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/1964-27-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/3320-23-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/3320-28-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/3320-29-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB

  • memory/3320-30-0x0000000074FD0000-0x0000000075581000-memory.dmp

    Filesize

    5.7MB