Overview

overview

10

Static

static

1

73c5b71d29...2f.rtf

windows7-x64

10

73c5b71d29...2f.rtf

windows10-2004-x64

1

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General

  • Target

    73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f.zip

  • Size

    20KB

  • Sample

    240402-mlmqzafe76

  • MD5

    4ab8afd66204f994b34a47110bdc9e66

  • SHA1

    3e29c709ef4362442de89f5afc9db8865b5a2a85

  • SHA256

    b842d71bccac771ea3d06505cb5e55b8f92b36c45682a910b96237f700b1d1a0

  • SHA512

    e2a24144e09961542f878d6beac7561892cb896c86745e9419f5291c1bc15390a0cae7c63cef32c2fce1e3cd62f61ade01beb963e147e99454985d3faa2e5d1d

  • SSDEEP

    384:FAJPp5JRmDQFPTgeGhGSDZbiP8nN6p79MOblKYWWfLYOIsoewN5V:FCv6g4D08QbJTQN5V

Score
10/10
remcosremotehostcollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.172.31.178:2404

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-NVSJ5U

  • 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

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f.rtf

    • Size

      63KB

    • MD5

      b5b2948d407676eab86b1152e7ce5ec4

    • SHA1

      85de7e562d97c36b9318393fd6185df6b1ba55b9

    • SHA256

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f

    • SHA512

      b2048e775bccc0f0cc144fcfaa4e3067fa4ed2613f1e152323673c6497a82815d2ef366d29289214cf5f0007a3c8537af6f40b6ab07a1a936ed4f4612be9725a

    • SSDEEP

      1536:fgoIW1uYod+RuUl9Zh7teyDdvqMhRSiupwk8uXjlh17AY9j:otyuYod+RuAZh84vSiowk8uXjlh17AYR

    Score
    10/10
    remcosremotehostcollectionpersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks