Analysis

  • max time kernel
    118s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 09:27

General

  • Target

    c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183N.exe

  • Size

    27KB

  • MD5

    3eaff8ce09f497995f5be4dc1b3aa820

  • SHA1

    f2b7c3546b6f55d2c797eeb2b8ed2a37e05e16e1

  • SHA256

    c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183

  • SHA512

    41d223f11aa428a5e262783bf732ffabb967785c7f2a7299b259f1398bb64b4a1ab3478e7e11312268fd86ee824d0f7f33c2b1b1aa5a31754c168ca4d8a26b62

  • SSDEEP

    384:tjLyib+vLGgkhRzeTwIiTSmLPeJ97MaAQk93vmhm7UMKmIEecKdbXTzm9bVhcax8:9lgKNzevO7aA/vMHTi9bDx

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

HacKed

C2

127.0.01:6662

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 27 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183N.exe
    "C:\Users\Admin\AppData\Local\Temp\c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183N.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\Payload.exe
      "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2732
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2184
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    27KB

    MD5

    3eaff8ce09f497995f5be4dc1b3aa820

    SHA1

    f2b7c3546b6f55d2c797eeb2b8ed2a37e05e16e1

    SHA256

    c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183

    SHA512

    41d223f11aa428a5e262783bf732ffabb967785c7f2a7299b259f1398bb64b4a1ab3478e7e11312268fd86ee824d0f7f33c2b1b1aa5a31754c168ca4d8a26b62

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

    Filesize

    1KB

    MD5

    175dcf91ef523df6166fc091918c8841

    SHA1

    e07af27597a939af81039147f404680d28f33850

    SHA256

    78be10b7e3783e797bfff8f3f5dcaab17d0612c508dd9259b046f8dab5cb89de

    SHA512

    6de78d023e2fb500944d7cbe2995b91bf98c54f97e8b36cefae5458c3c6e7b68eea3e3e746777bfad62d59b069bd3143d07f3c8d90dedb0d6eccd90fb8c79378

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

    Filesize

    1022B

    MD5

    2003bb0332ddfd3d91153db0bd88564e

    SHA1

    32e60a8379db536b5037a7bf909289960369582b

    SHA256

    b3fd92b0ef90b98cb7d9ed6435266f9d8e364054038ce8490bd0d005ef144517

    SHA512

    be63a85396b5c4deefebd891c5997785708a27bcc6a95b3221328be4711b9315c57966de43503bec3a58c674238ce57aa401f6afcdcb4d66e9b5723c465b28d7

  • memory/1012-13-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1012-18-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1012-20-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-0-0x00000000747A1000-0x00000000747A2000-memory.dmp

    Filesize

    4KB

  • memory/1728-1-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-2-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-12-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-19-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB