Resubmissions

21-01-2025 11:18

250121-nef6aa1jfx 10

Analysis

  • max time kernel
    152s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-01-2025 11:18

General

  • Target

    DTLite.exe

  • Size

    2.1MB

  • MD5

    684de18cccab7719057cd4bbfbee16c3

  • SHA1

    a7b956a4aca4624fb466a932d49fb3268a42b7e2

  • SHA256

    fb26dcd89930afef0012125087704a3564d8ef0a37c3c6c021b42071ad273ceb

  • SHA512

    a06aefaf05f3011daeb65a34a773e920b868078c3c104982546a6d5a75c3da11cf9988adb1d595264d8d3cf78f340bae2d8242ca3e6090d72e2fce747c7176cb

  • SSDEEP

    49152:/1YhxSNudS5ZpWBd7tOvJOUUFBIMXxl4IPTRUN33eFvlux4NuAIBq6As/qZrUFjk:dYm54t6rUOSW

Malware Config

Extracted

Family

remcos

Version

4.9.3 Light

Botnet

RemoteHost

C2

127.0.0.1:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-52SPIJ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DTLite.exe
    "C:\Users\Admin\AppData\Local\Temp\DTLite.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Users\Admin\AppData\Local\Temp\DTLite.exe
      "C:\Users\Admin\AppData\Local\Temp\DTLite.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/868-42-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-60-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/868-5-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-18-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/868-43-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-73-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-72-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-71-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-70-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-44-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-20-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-19-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-21-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-22-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-23-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-24-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-25-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-26-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-27-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-28-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-29-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-30-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-31-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-32-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-33-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-34-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-35-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-36-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-15-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-38-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-39-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-40-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-41-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-37-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-69-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-68-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-45-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-46-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-47-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-48-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-49-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-50-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-51-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-52-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-53-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-54-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-55-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-56-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-57-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-58-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-59-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-9-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-61-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-62-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-63-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-64-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-65-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-66-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/868-67-0x00000000001B0000-0x0000000000225000-memory.dmp

    Filesize

    468KB

  • memory/1552-17-0x00000000005CE000-0x00000000005FA000-memory.dmp

    Filesize

    176KB

  • memory/1552-1-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/1552-13-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/1552-4-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/1552-3-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/1552-2-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/1552-16-0x00000000005C9000-0x00000000005FA000-memory.dmp

    Filesize

    196KB

  • memory/1552-12-0x0000000000400000-0x0000000000621000-memory.dmp

    Filesize

    2.1MB

  • memory/1552-11-0x00000000005B9000-0x00000000005C0000-memory.dmp

    Filesize

    28KB

  • memory/1552-10-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB