Resubmissions

28/01/2022, 07:47

220128-jmvw7ahcfr 10

28/01/2022, 07:21

220128-h6z5kshabm 1

Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28/01/2022, 07:47

General

  • Target

    5d4c1c7d1dff2ee6d3febde776b94c213c2b7e89.exe

  • Size

    928KB

  • MD5

    4f4a56d25dcac0b3477fb03ca1a10f1e

  • SHA1

    5d4c1c7d1dff2ee6d3febde776b94c213c2b7e89

  • SHA256

    17890cb929ee2c13239367fc92aaae4e9c6187b23ca0ea2b4b75886cbfd99e33

  • SHA512

    500236bdfe1a9a82266b344d0281d9737e138a9fa16bf79a5e7f3738885f8c49ed854dfa78f1422c57daaf4c3c2ef953c2e47dc385c18d426b524be3dd008e4c

Malware Config

Extracted

Family

cryptbot

C2

tisqer24.top

moribm02.top

Signatures

  • CryptBot

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

  • Deletes itself 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d4c1c7d1dff2ee6d3febde776b94c213c2b7e89.exe
    "C:\Users\Admin\AppData\Local\Temp\5d4c1c7d1dff2ee6d3febde776b94c213c2b7e89.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\sccARWpnc & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5d4c1c7d1dff2ee6d3febde776b94c213c2b7e89.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:576
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:564

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1536-55-0x0000000076371000-0x0000000076373000-memory.dmp

          Filesize

          8KB

        • memory/1536-56-0x0000000000400000-0x00000000004EE000-memory.dmp

          Filesize

          952KB

        • memory/1536-57-0x0000000001E20000-0x0000000001E68000-memory.dmp

          Filesize

          288KB