Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    08-04-2021 08:13

General

  • Target

    48234a387e7777a7a284acb8f0bfef52.exe

  • Size

    637KB

  • MD5

    48234a387e7777a7a284acb8f0bfef52

  • SHA1

    b34a895fe511e36af09231c1239577a565e380e6

  • SHA256

    4a7f380de68e6969bcedffe6c7d5b01ac9ecd1f4df9f2bb79fb7fec94252e095

  • SHA512

    e3f7fefb4ba37baeea23603a9a4c48197efb54495741d613f8eddc58074f8cbe20658406c949fff510730eed8dc000cd61550b7b69e2c668cc43f6b2cb60e546

Malware Config

Extracted

Family

remcos

C2

alukoren.duckdns.org:9144

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48234a387e7777a7a284acb8f0bfef52.exe
    "C:\Users\Admin\AppData\Local\Temp\48234a387e7777a7a284acb8f0bfef52.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      2⤵
        PID:1456

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1456-66-0x0000000000000000-mapping.dmp
    • memory/1456-68-0x00000000000D0000-0x00000000000D1000-memory.dmp
      Filesize

      4KB

    • memory/1456-70-0x0000000000240000-0x0000000000241000-memory.dmp
      Filesize

      4KB

    • memory/1456-71-0x0000000010590000-0x000000001060C000-memory.dmp
      Filesize

      496KB

    • memory/1456-72-0x0000000000400000-0x0000000000479000-memory.dmp
      Filesize

      484KB

    • memory/1456-73-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/1604-60-0x0000000076341000-0x0000000076343000-memory.dmp
      Filesize

      8KB

    • memory/1604-61-0x0000000000230000-0x0000000000231000-memory.dmp
      Filesize

      4KB

    • memory/1604-63-0x0000000000900000-0x000000000091A000-memory.dmp
      Filesize

      104KB