Overview

overview

10

Static

static

3

3c911df5b8...49.dll

windows7-x64

10

3c911df5b8...49.dll

windows10-2004-x64

10

Sharing

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General

  • Target

    3c911df5b86df9712bf5f14ff49c3beadb62cbde886609139c437bf0a919fc49.dll

  • Size

    2.0MB

  • Sample

    240906-r1v34s1grp

  • MD5

    35e11c13023ab1ac61074ad93aabaa91

  • SHA1

    254d8d808f678540ff8a55836e92a444dd2d44e3

  • SHA256

    3c911df5b86df9712bf5f14ff49c3beadb62cbde886609139c437bf0a919fc49

  • SHA512

    8d11d9320ccb86bbf0869eabb16c417d36bbe0b22d572b1cf53628a08a40fa41ffe2aa7180f13b1809408f83f1f9389643076641e6a9f7599ef8e8b308226966

  • SSDEEP

    49152:Spa15dx9PeTsoRC2lJ9+LN8GHutn1c/GVzp1wTHyQhBCMsvEq3eBiDw0u8uWB9TE:21wTHF5svPOYDw0RrJM

Score
10/10
remcosremotehostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

privmerkt.com:6042

nwemarkets.com:5290
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-44NBAP

  • 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

      3c911df5b86df9712bf5f14ff49c3beadb62cbde886609139c437bf0a919fc49.dll

    • Size

      2.0MB

    • MD5

      35e11c13023ab1ac61074ad93aabaa91

    • SHA1

      254d8d808f678540ff8a55836e92a444dd2d44e3

    • SHA256

      3c911df5b86df9712bf5f14ff49c3beadb62cbde886609139c437bf0a919fc49

    • SHA512

      8d11d9320ccb86bbf0869eabb16c417d36bbe0b22d572b1cf53628a08a40fa41ffe2aa7180f13b1809408f83f1f9389643076641e6a9f7599ef8e8b308226966

    • SSDEEP

      49152:Spa15dx9PeTsoRC2lJ9+LN8GHutn1c/GVzp1wTHyQhBCMsvEq3eBiDw0u8uWB9TE:21wTHF5svPOYDw0RrJM

    Score
    10/10
    remcosremotehostdiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks