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Analysis

  • max time kernel
    145s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2024, 18:42

General

  • Target

    8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe

  • Size

    27KB

  • MD5

    47bea8a28b1e81e3342d594fc57acd8e

  • SHA1

    d301e8985e53b7baabf9b45df087a017e3817742

  • SHA256

    8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4

  • SHA512

    d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6

  • SSDEEP

    384:2LBH6uj/+AU9038hfOexuaP39hRnMYAQk93vmhm7UMKmIEecKdbXTzm9bVhcaL62:wBa0mkspJtyYA/vMHTi9bD

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

HacKed

C2

216.250.251.104:2028

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 3 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 33 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe
    "C:\Users\Admin\AppData\Local\Temp\8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.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:1076
    • C:\Users\Admin\AppData\Roaming\Payload.exe
      "C:\Users\Admin\AppData\Roaming\Payload.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2528
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Payload.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    020a8f7f990c7833dfb049254ca77b0f

    SHA1

    33f0e4024396f2c293be10ea3183c46bc33af3c0

    SHA256

    c7671aa49a19aeee5d5f69e8042485374fd3940b87f7c012fea69bb28b896322

    SHA512

    d9feb210b8f6baf979c653ef18a6b2fbc8ccf0790b9757c2bc9d401dde585e3372ff58513e4f4bfcd174d83cefdfa3b6ca8ca43ee311dacc9ffd890a882fc326

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

    Filesize

    1022B

    MD5

    ad5e17fccd06112e5e3cdf9893b80bcf

    SHA1

    e1b52f2bf185cc25dfd0ca22f52e88ceab593a40

    SHA256

    9bd06589c70ef5778a0785805c1f7be0144b355d2cae3fea4bc36d27ae61376e

    SHA512

    dd87f467c339cace45e3c3b0ebbc4912dafa299b3229ff7053f4fb930aa817a3ddf81c58b1837aa1f9ad2afce552326a97110ec11cf1c7852d404e00ad5ea9fd

  • \Users\Admin\AppData\Roaming\Payload.exe

    Filesize

    27KB

    MD5

    47bea8a28b1e81e3342d594fc57acd8e

    SHA1

    d301e8985e53b7baabf9b45df087a017e3817742

    SHA256

    8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4

    SHA512

    d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6

  • memory/1076-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

    Filesize

    4KB

  • memory/1076-1-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/1076-11-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

    Filesize

    4KB

  • memory/2528-12-0x0000000001100000-0x000000000110E000-memory.dmp

    Filesize

    56KB

  • memory/2528-17-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-18-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-19-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB