Analysis

  • max time kernel
    115s
  • 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
    18-08-2024 12:01

General

  • Target

    7a29d3b5d443431f45f1ae41a988ece0N.exe

  • Size

    111KB

  • MD5

    7a29d3b5d443431f45f1ae41a988ece0

  • SHA1

    15e178c99c4b64310564ce90d441a02e5d60511f

  • SHA256

    f77060e1af9efc5a10c35727ce8ba28b4f8228ce0ca2a3a04423895a5d0e8161

  • SHA512

    1381eca0ee52d6b0d118df952cff851e5f43e1cfc252497fa0e2f560244a676948a7248f425af462672390aa350eeb71c740ccf6925dc217f7980288051ccde3

  • SSDEEP

    1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73m:w5eznsjsguGDFqGx8egoxmO3rm

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 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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.

  • Program crash 1 IoCs
  • 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a29d3b5d443431f45f1ae41a988ece0N.exe
    "C:\Users\Admin\AppData\Local\Temp\7a29d3b5d443431f45f1ae41a988ece0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2456
    • 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:2196
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:1748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 80
          4⤵
          • Program crash
          PID:3716
      • 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:1504
        • 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:4916
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1748 -ip 1748
    1⤵
      PID:3180

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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

      111KB

      MD5

      823ded01d54395797883217709f07bb1

      SHA1

      f241e1439b20a582e1dfd45d35d5e2cc8ebcb49d

      SHA256

      63d5459683d7ec160d8ee17fba39e99a64356dec316d3b9288833a9c67703dfd

      SHA512

      dccb532346b248e818e95563d5b1ece57d486c2a630e4d1025d74c93be9db0eba4d3e4420ad6f4a6f32775998cd720965a6e476341560613f75a5e1a6f1cbe0d

    • memory/1504-24-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/1504-33-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/1504-32-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/1504-31-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2196-22-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2196-23-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2196-21-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2196-30-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2456-19-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2456-0-0x0000000074652000-0x0000000074653000-memory.dmp

      Filesize

      4KB

    • memory/2456-20-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2456-7-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2456-6-0x0000000074652000-0x0000000074653000-memory.dmp

      Filesize

      4KB

    • memory/2456-2-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/2456-1-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB