Analysis

  • max time kernel
    35s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2023, 16:15

General

  • Target
    2c4977f3e2a61cbc7ecdeec43113b0b8.exe
  • Size 1.5MB
  • Sample231225-tqa2asdgfk
  • SHA256 a806f8e113496f38ba62684288d9ca209797bb6776030d6834f19070676e31f3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cryptbot

C2
  • ewafve51.top

  • morexn05.top

Attributes
  • payload_url

    http://winorm07.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c4977f3e2a61cbc7ecdeec43113b0b8.exe
    "C:\Users\Admin\AppData\Local\Temp\2c4977f3e2a61cbc7ecdeec43113b0b8.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c cmd < Accorrendo.vsdx
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4360
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c iGHD
      2⤵
        PID:800
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Oricellari.exe.com
      Oricellari.exe.com O
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Oricellari.exe.com
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Oricellari.exe.com O
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        PID:372
    • C:\Windows\SysWOW64\PING.EXE
      ping localhost -n 30
      1⤵
      • Runs ping.exe
      PID:4864
    • C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^PDZqcWtnfyFhrjfahThQUuhFyPddeeJBrYMfssRxjqYmENUKnZJjZIDJdzVGFNvhvtptmqqWwTDUiNwaUGReavBcxeYYclOmDLrmDPlnZNkutJCD$" Dai.vsdx
      1⤵
        PID:1044
      • C:\Windows\SysWOW64\cmd.exe
        cmd
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3548

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            Accorrendo.vsdx

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Accorrendo.vsdx
            • Size 574B
            • SHA256 b2cc4707906a81a86b2dfaedcbd12800d849376d1f0607f6d39f6a6be99f9306
            • MD5 SHA1 SHA512

            Dai.vsdx

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Dai.vsdx
            • Size 52KB
            • SHA256 8c769384367381f0d171a39c10550e8dc986bfce159b7b9d74eab76c6b42a2ed
            • MD5 SHA1 SHA512 SSDEEP

            Mio.vsdx

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Mio.vsdx
            • Size 115KB
            • SHA256 97e6c5f3c28b9cdc204d4606f5a64a30f058a29745d74c2a276b21cbf55f6bd4
            • MD5 SHA1 SHA512 SSDEEP

            O

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\O
            • Size 32KB
            • SHA256 0f17c0fcd2bc15a2ed794e9cb7c83fe4222caf78f7875a9430393ce23ba8c6eb
            • MD5 SHA1 SHA512 SSDEEP

            Oricellari.exe.com

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Oricellari.exe.com
            • Size 35KB
            • SHA256 8ad744006a2f24aa0db1414660d74a18b9e167404fe662e9b6e72ed10d1ce738
            • MD5 SHA1 SHA512 SSDEEP

            Oricellari.exe.com

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Oricellari.exe.com
            • Size 8KB
            • SHA256 5227c7111fdab32d84df7738b47ae2703e2f8444188925a5bd317bb8a5f47625
            • MD5 SHA1 SHA512 SSDEEP

            Sorso.vsdx

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sorso.vsdx
            • Size 17KB
            • SHA256 eef3754f9a011ce64e46aa460819be469abd99695a917a11f1d497e654380b72
            • MD5 SHA1 SHA512 SSDEEP

            _Information.txt

            • Path C:\Users\Admin\AppData\Local\Temp\T81tooj6\_Files\_Information.txt
            • Size 1KB
            • SHA256 e927e3f944f717a5283471dc578f27359fbe87b6985d9ef0acff820f719bcaf0
            • MD5 SHA1 SHA512

            system_info.txt

            • Path C:\Users\Admin\AppData\Local\Temp\T81tooj6\files_\system_info.txt
            • Size 1KB
            • SHA256 7cb613864524327f9c38df91b36e820f6ca30a73f7de03de73558829d580a36f
            • MD5 SHA1 SHA512

            memory/372-24-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-26-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-27-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-25-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-29-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-22-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-23-0x0000000004520000-0x00000000045C3000-memory.dmp

            memory/372-21-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

            memory/372-236-0x0000000004520000-0x00000000045C3000-memory.dmp