Analysis

  • max time kernel
    119s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    13/12/2023, 10:58

General

  • Target

    8102e9bee1323da3bc9ddd5232f8bcb3843e1ddd7bbf7859ee9f167b2ab1593d.exe

  • Size

    4.0MB

  • MD5

    9ae7830ff4ead1194119e4151b09d7b6

  • SHA1

    e36741257c0d133c59bebf2aa3fe33344d4e5694

  • SHA256

    8102e9bee1323da3bc9ddd5232f8bcb3843e1ddd7bbf7859ee9f167b2ab1593d

  • SHA512

    e40ca551ba98869fc8aafdec3b8521d09c49d4e094c17f9df60a9056fab3cfce08de5c961b34daac46c1a4b274733d4e5a36ef024baa9322baf1ea64c1bbe241

  • SSDEEP

    49152:C8y4+H/MA9KvdXjuvugsDwy9p6a7ZIcQ2R8+06QlCQ1U2V+6kYS3e+/skGV8rOv1:a/MOeDp6l08+06QxUZ6kb/skbrOO

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8102e9bee1323da3bc9ddd5232f8bcb3843e1ddd7bbf7859ee9f167b2ab1593d.exe
    "C:\Users\Admin\AppData\Local\Temp\8102e9bee1323da3bc9ddd5232f8bcb3843e1ddd7bbf7859ee9f167b2ab1593d.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2152
    • C:\Program Files (x86)\Funshion\DySDKController.exe
      "C:\Program Files (x86)\Funshion\DySDKController.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1432

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files (x86)\Funshion\DyCrashRpt.dll

          Filesize

          155KB

          MD5

          068a45ed0c24060c3a8d45be44087f65

          SHA1

          fc7b7a4f021cb71b6a81daf62046d3fd5dc1653a

          SHA256

          5c5f0030940704c174600b3ded8d90a168b2cb406bfbd1c5de1df3057de42f0e

          SHA512

          54f5871515667708cd47980a96a57aa1386887ffb343360a2b2bd05da53e0474ff175818657ae39a4f3516bb191e50961a3b84538f8ff3296b773abb38e0d447

        • C:\Program Files (x86)\Funshion\DySDKController.exe

          Filesize

          1.1MB

          MD5

          5441bc3e3ceb2162a65cbfb4b6e7acd3

          SHA1

          103a0ec0f23e90def158eff9be7f63f6ca9af420

          SHA256

          90fe10bb10fbc95285696423e0ba4bfc10f4dcb63ea8d94fe29871036e4859f6

          SHA512

          f76ae8e1e43223e1fa06e5911b06dc7b2b3d60e3758fc5201c4dbd8df601b59be11e65f42ffe43a5823a71aa1cc328c7a2f625ca50893b1101d73d59b13b4ed4

        • C:\ProgramData\afd.bin

          Filesize

          198KB

          MD5

          b13ffe8963d3f536bcbd88d4f6ebae93

          SHA1

          dcfdb4fa21a16dd417672c78ccdea8d5904c5f5e

          SHA256

          ab766c0fbcc5610ff5dca17b085d0ef5ed96ef23f0fc8b6a9e8dbe40821830c9

          SHA512

          0a6e3bf78aa2196dda368b3492bd017b4ea562ed0763359619faf6967aae1c88739fb662771bdce3084326e0db5ce0f55f9172f1a598e2d42c489d03500b2672

        • memory/1432-15-0x0000000074EF0000-0x0000000074F18000-memory.dmp

          Filesize

          160KB

        • memory/1432-17-0x0000000010000000-0x0000000010031000-memory.dmp

          Filesize

          196KB

        • memory/1432-18-0x0000000000610000-0x0000000000674000-memory.dmp

          Filesize

          400KB

        • memory/1432-22-0x00000000001C0000-0x00000000001EA000-memory.dmp

          Filesize

          168KB

        • memory/1432-28-0x0000000074EF0000-0x0000000074F18000-memory.dmp

          Filesize

          160KB