Overview

overview

10

Static

static

3

8c1388ccb9...54.exe

windows7-x64

10

8c1388ccb9...54.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    8c1388ccb95a00eff884fbcced99331d9d06e7afd97233495ee8a98ec66b1954.exe

  • Size

    466KB

  • Sample

    250129-dg8m7sypas

  • MD5

    7673fd82aa7532088ef86166520c35f5

  • SHA1

    7d75296b69d9bfccb81be95f06865e538e50aebc

  • SHA256

    8c1388ccb95a00eff884fbcced99331d9d06e7afd97233495ee8a98ec66b1954

  • SHA512

    5837a5ff872aea44f67f4b876739fccef3848e08ecd23ce6e3f883785c342dcb48a269d1b62a82b3f50a010d384879d7068d2874b549c5e39aef39bfe6003bae

  • SSDEEP

    6144:cefpa4IrjT0A4XnusQIzmaHXLvTIU8MmwhMdsPVc+D/28IKL+dJ:JfpTIrn+nuFIzmaHbMU8Ah6we8I0+dJ

Score
10/10
remcosyavakosadiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Yavakosa

C2

198.23.227.212:32583

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    yavascript.exe

  • copy_folder

    xenor

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-DCHPS3

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      8c1388ccb95a00eff884fbcced99331d9d06e7afd97233495ee8a98ec66b1954.exe

    • Size

      466KB

    • MD5

      7673fd82aa7532088ef86166520c35f5

    • SHA1

      7d75296b69d9bfccb81be95f06865e538e50aebc

    • SHA256

      8c1388ccb95a00eff884fbcced99331d9d06e7afd97233495ee8a98ec66b1954

    • SHA512

      5837a5ff872aea44f67f4b876739fccef3848e08ecd23ce6e3f883785c342dcb48a269d1b62a82b3f50a010d384879d7068d2874b549c5e39aef39bfe6003bae

    • SSDEEP

      6144:cefpa4IrjT0A4XnusQIzmaHXLvTIU8MmwhMdsPVc+D/28IKL+dJ:JfpTIrn+nuFIzmaHbMU8Ah6we8I0+dJ

    Score
    10/10
    remcosyavakosadiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks