Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2024 01:15

General

  • Target

    5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe

  • Size

    1.6MB

  • MD5

    5a23daf9b3b5cc63cb1bc05554f08939

  • SHA1

    1c5da1257668d249397f3fc678ac922623d4740d

  • SHA256

    0435c7a496eac28db6f3af5ae859064cf133e7bda1ef44080d8a6bad1eade671

  • SHA512

    b8816d67f0ee1a1ba298314e76257f362e04fcf15cbc048a11bd98b85829f8b508f7d5cc51713c6e1f2a4eb4274995b8cee3f836dccd575af75ef92ae23bb53a

  • SSDEEP

    49152:D8iSTZdXTZdHXTZdXTZaqLd+mQb+mQ7hdDaQ7SAs:D

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

HacKed

C2

62.227.124.106:5552

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\stub.exe
      "C:\Users\Admin\AppData\Local\Temp\stub.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 776
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:2760
    • C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Users\Admin\AppData\Local\Temp\stub.exe
        "C:\Users\Admin\AppData\Local\Temp\stub.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
          dw20.exe -x -s 760
          4⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:3200
      • C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe"
        3⤵
        • Checks computer location settings
        • Drops startup file
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3520
        • C:\Users\Admin\AppData\Local\Temp\Payload.exe
          "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3212
          • C:\Users\Admin\AppData\Local\Temp\Payload.exe
            "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4236
            • C:\Users\Admin\AppData\Local\Temp\Payload.exe
              "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
              6⤵
              • Drops startup file
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:3796
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5a23daf9b3b5cc63cb1bc05554f08939_JaffaCakes118.exe.log

    Filesize

    617B

    MD5

    e07efe3f1e4fcc39483a46d0644e1750

    SHA1

    083566e513d8090982a8f2d2c57864f7e5eea721

    SHA256

    d35da5dbc639e94852448d93722de5260388abf8a0a6b80d947d8acf02209617

    SHA512

    e29fac6efce55130598dd9ca0be18e2934d8ed417087848f4c80c1754312f1dae2eb0fc3e85e58aa11abde23a221bdf8f6b80df3a9acad4891626f667f05b474

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

    Filesize

    1.6MB

    MD5

    5a23daf9b3b5cc63cb1bc05554f08939

    SHA1

    1c5da1257668d249397f3fc678ac922623d4740d

    SHA256

    0435c7a496eac28db6f3af5ae859064cf133e7bda1ef44080d8a6bad1eade671

    SHA512

    b8816d67f0ee1a1ba298314e76257f362e04fcf15cbc048a11bd98b85829f8b508f7d5cc51713c6e1f2a4eb4274995b8cee3f836dccd575af75ef92ae23bb53a

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

    Filesize

    237KB

    MD5

    541a97219a94deaff2f3fad462ccaf0b

    SHA1

    aa76d0a36b0ce118c1bb5d81e4d3ad4cb39c9c12

    SHA256

    a8a01af1b5b629ce9c2866cba6459fc05052b77d70f3a93012ecc69e4ed209d6

    SHA512

    d18bf28d9b817c144ba5e9184a3f6d256ab990eb1b90b6be9a77b8edab158ab6e8b3b8047adb28385b5859474433b5270d29b9ef3389ed5b009ef0255d00d581

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

    Filesize

    1KB

    MD5

    cace1782c66026f664ab5fb3ee1beaf9

    SHA1

    be192ff1a0769f6a5514946fbe1a4e120978557e

    SHA256

    79b022a5521d7d9850a775f30e6829c2c1f44c39a4cab784a774d3a9f0c192ee

    SHA512

    e9eb3ff357545458796663d359dc27c435e6e509ca9662cb738fba33358fb0f6869a04beb5ee5169b7cae97120b04f1a34ec487ea0b0f418bfca64994af6d8c6

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

    Filesize

    1KB

    MD5

    9a7e9b78e021b28a0151f88d5687bade

    SHA1

    1983e9599d152e746e7f85934272356fb699e91f

    SHA256

    c67e144cead90c34ba1c1885aa64abba7bb759fba92b0fb33321ee3344d239e3

    SHA512

    32d9100f8c65bbfe862e073eb5d25e4b6591bc920a2233d0f906895d2cf7063e080311eefc6fc6d96a3964afe4cb043f164d66b2b3902e17ae2bcb59db8c2040

  • memory/1528-1-0x0000000000400000-0x00000000005A8000-memory.dmp

    Filesize

    1.7MB

  • memory/1528-2-0x0000000004A80000-0x0000000004B1C000-memory.dmp

    Filesize

    624KB

  • memory/1528-14-0x00000000054D0000-0x0000000005A74000-memory.dmp

    Filesize

    5.6MB

  • memory/1528-16-0x0000000005C20000-0x0000000005C38000-memory.dmp

    Filesize

    96KB

  • memory/1528-18-0x0000000004D10000-0x0000000004D20000-memory.dmp

    Filesize

    64KB

  • memory/1528-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2004-33-0x00007FFC9D990000-0x00007FFC9E331000-memory.dmp

    Filesize

    9.6MB

  • memory/2004-21-0x000000001B210000-0x000000001B2B6000-memory.dmp

    Filesize

    664KB

  • memory/2004-25-0x000000001C420000-0x000000001C8EE000-memory.dmp

    Filesize

    4.8MB

  • memory/2004-19-0x00007FFC9DC45000-0x00007FFC9DC46000-memory.dmp

    Filesize

    4KB

  • memory/2004-17-0x00007FFC9D990000-0x00007FFC9E331000-memory.dmp

    Filesize

    9.6MB

  • memory/2004-15-0x00007FFC9DC45000-0x00007FFC9DC46000-memory.dmp

    Filesize

    4KB

  • memory/3520-45-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/3796-79-0x0000000005880000-0x0000000005912000-memory.dmp

    Filesize

    584KB

  • memory/3796-80-0x0000000005A40000-0x0000000005A4A000-memory.dmp

    Filesize

    40KB

  • memory/4264-24-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/4264-20-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB