Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 21:30

General

  • Target

    cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a.exe

  • Size

    147KB

  • MD5

    cff2d790319ab17e0a5c50cd472ff240

  • SHA1

    e58cf042b5ad0f69adfbe75c9fb9964c74642cf4

  • SHA256

    cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a

  • SHA512

    4d8023912869d6ac7ac3b88c452a79104bb0ce39c2284df0ba02439d3d7dba6b776a86354b0eeb44d721a8007d0fe2eb2bb4a8ee66b24b5b2d0110f4440f343c

  • SSDEEP

    3072:73QT8B4Sv0tElYY28Ts2gawnHv28ifsPUAbGdZq:8Tsx08PFYvS

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    IRj3SceatjDfweW/qMMw7g==

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/Pzx225ZB

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Audio Realtek Driver.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \Audio Realtek Driver\

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a.exe
    "C:\Users\Admin\AppData\Local\Temp\cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a.exe
      "C:\Users\Admin\AppData\Local\Temp\cad4b9b3faba5b2f535fc4e873e37b81ba38cd5a02e5d8eb2e344e34c1bd1f7a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 388
        3⤵
          PID:1140

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/856-55-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-56-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-58-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-59-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-60-0x0000000000408D8E-mapping.dmp

    • memory/856-62-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-64-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/856-68-0x0000000074330000-0x00000000748DB000-memory.dmp

      Filesize

      5.7MB

    • memory/856-70-0x0000000074330000-0x00000000748DB000-memory.dmp

      Filesize

      5.7MB

    • memory/1140-66-0x0000000000000000-mapping.dmp

    • memory/1472-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

      Filesize

      8KB

    • memory/1472-67-0x0000000074330000-0x00000000748DB000-memory.dmp

      Filesize

      5.7MB