Overview

overview

10

Static

static

3

3a8b254e5d...bd.exe

windows7-x64

7

3a8b254e5d...bd.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows7-x64

3

$PLUGINSDI...ec.dll

windows10-2004-x64

3

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General

  • Target

    3a8b254e5d72bd8465898f3f7d3af731c103ad07b064a78f80b6f042213c66bd

  • Size

    559KB

  • Sample

    241008-jtavlawfpj

  • MD5

    1b2cbeac6edcd04ca160e8f73275d58e

  • SHA1

    4eb5c4db67655932f0d904dc037b44b0d486158c

  • SHA256

    3a8b254e5d72bd8465898f3f7d3af731c103ad07b064a78f80b6f042213c66bd

  • SHA512

    6dba4d2c3781b16faecbeadcce20b3fd6245d89a3fd587521e71d228698a098622d7f9cbff1298aa20fb3a4007d8d61d8bb49e8990441add56782ccb35718fc6

  • SSDEEP

    12288:oXXR47mwO8E0dAjNWiyfp0/mms22qBTO7hIB+J2W+ei:KXR47NTEWANRZsHgC7Y+AWm

Score
10/10
remcosremotehostdiscoveryrat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

kezdns.pro: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-INFRLN

  • 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

      3a8b254e5d72bd8465898f3f7d3af731c103ad07b064a78f80b6f042213c66bd

    • Size

      559KB

    • MD5

      1b2cbeac6edcd04ca160e8f73275d58e

    • SHA1

      4eb5c4db67655932f0d904dc037b44b0d486158c

    • SHA256

      3a8b254e5d72bd8465898f3f7d3af731c103ad07b064a78f80b6f042213c66bd

    • SHA512

      6dba4d2c3781b16faecbeadcce20b3fd6245d89a3fd587521e71d228698a098622d7f9cbff1298aa20fb3a4007d8d61d8bb49e8990441add56782ccb35718fc6

    • SSDEEP

      12288:oXXR47mwO8E0dAjNWiyfp0/mms22qBTO7hIB+J2W+ei:KXR47NTEWANRZsHgC7Y+AWm

    Score
    10/10
    discoveryremcosremotehostrat

    • Remcos

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

      ratremcos

    • Loads dropped DLL

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      dd87a973e01c5d9f8e0fcc81a0af7c7a

    • SHA1

      c9206ced48d1e5bc648b1d0f54cccc18bf643a14

    • SHA256

      7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1

    • SHA512

      4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f

    • SSDEEP

      192:VFiQJ77pJp17C8F1A5xjGNxrgFOgb7lrT/993:97pJp48F2exrg5F/9

    Score
    3/10
    discovery
    behavioral3behavioral4

    • Target

      $PLUGINSDIR/nsExec.dll

    • Size

      6KB

    • MD5

      6c881f00ba860b17821d8813aa34dbc6

    • SHA1

      0e5a1e09b1ce1bc758d6977b913a8d9ccbe52a13

    • SHA256

      bcb93204bd1854d0c34fa30883bab51f6813ab32abf7fb7d4aeed21d71f6af87

    • SHA512

      c78d6f43aa9bb35260a7bd300392ce809282660283fa6cb3059bae50d6db229b0b853cab7c949d4bdf19309fb183257b1c9feb01a66347e1c0adeb21543315b6

    • SSDEEP

      96:DOBtYZKtPsrqBApt1JHpb9XWk7Qe06iE6mE6YNFyVOHd0+ugwEX:DtZKtrAJJJbP7iEHEbN8Ved0PM

    Score
    3/10
    discovery
    behavioral5behavioral6

MITRE ATT&CK Enterprise v15

Tasks