Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    08-10-2021 12:51

General

  • Target

    0aa3cc090418e3658f6dbe4276c597a5d07df3dd6c2738277b3ad32a99ee09ad.exe

  • Size

    693KB

  • MD5

    84898ae9f7f56573cddf53a72e985a88

  • SHA1

    3d90422c55b85792e267083031024f57450e552a

  • SHA256

    0aa3cc090418e3658f6dbe4276c597a5d07df3dd6c2738277b3ad32a99ee09ad

  • SHA512

    40ab8da387ab9a04642cbf6da029118f59da2fc4101fc485658051e870c8cc369886f415b2af1c201b4683a1a38d74ae06063c825db2332c9ee1a699145b7a25

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

ARAB

C2

Officialsw.chickenkiller.com:2310

official.ydns.eu:2310

hurricane.ydns.eu:2310

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    5

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    kul-L5JNVP

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0aa3cc090418e3658f6dbe4276c597a5d07df3dd6c2738277b3ad32a99ee09ad.exe
    "C:\Users\Admin\AppData\Local\Temp\0aa3cc090418e3658f6dbe4276c597a5d07df3dd6c2738277b3ad32a99ee09ad.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      2⤵
        PID:3428

    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/1860-115-0x00000000004C0000-0x000000000056E000-memory.dmp
      Filesize

      696KB

    • memory/3428-116-0x0000000000000000-mapping.dmp
    • memory/3428-118-0x0000000002AD0000-0x0000000002AD1000-memory.dmp
      Filesize

      4KB

    • memory/3428-117-0x0000000000990000-0x0000000000991000-memory.dmp
      Filesize

      4KB

    • memory/3428-120-0x0000000010590000-0x000000001060C000-memory.dmp
      Filesize

      496KB

    • memory/3428-119-0x00000000009F0000-0x00000000009F1000-memory.dmp
      Filesize

      4KB

    • memory/3428-121-0x0000000000400000-0x0000000000479000-memory.dmp
      Filesize

      484KB