Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 03:18

General

  • Target

    c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183.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 35 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183.exe
    "C:\Users\Admin\AppData\Local\Temp\c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183.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:2224
    • 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:2812
      • 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:2552
      • 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:2548
    • 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:2684

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

    698057967070868e6327650afb3c8216

    SHA1

    21a257644bafd93cf70179b2b66152289c5d1728

    SHA256

    7bc606bbc1534cfcd4c3e99569a4affa24a66fce94affa53004df5865eb3f8da

    SHA512

    7372bf5ad1a18d8cb33d937a9dc1853840892f1902050e0e2cd237363daf07c1465ebf4ef2262772c22607287c888a2c4902faf8417fa9aa22c28f4268656009

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

    Filesize

    1022B

    MD5

    2e3c4af004fa46541fefabe17a645306

    SHA1

    8dcbb824393b89fb3c43a8acba1a642abdc2b4cc

    SHA256

    43492f86986eecd3a38e4c2922adeb1e0bd727337111d0afd7be3b7b971828ae

    SHA512

    679b95100d84de38d84bc2e0c3885a79fe222873ecc537bebacb4fedaa35c1446f907a80816d99b572ba6dce3c7ab18fefacebde65044b10d7b1c5d1ad13fb34

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

    Filesize

    27KB

    MD5

    3eaff8ce09f497995f5be4dc1b3aa820

    SHA1

    f2b7c3546b6f55d2c797eeb2b8ed2a37e05e16e1

    SHA256

    c597a3de3db7b77b11beb33640dca13812dbc26cf291856810bd170039b17183

    SHA512

    41d223f11aa428a5e262783bf732ffabb967785c7f2a7299b259f1398bb64b4a1ab3478e7e11312268fd86ee824d0f7f33c2b1b1aa5a31754c168ca4d8a26b62

  • memory/2224-0-0x0000000074D21000-0x0000000074D22000-memory.dmp

    Filesize

    4KB

  • memory/2224-1-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-4-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-12-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2812-13-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2812-14-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2812-19-0x0000000074D20000-0x00000000752CB000-memory.dmp

    Filesize

    5.7MB