General

  • Target

    0daec5d74297591bda4fb4aedd1c91643b7cd4312d65e5eb664d2328f0cd5c52.exe

  • Size

    623KB

  • Sample

    240319-cg6yyaed53

  • MD5

    a1cc10092e7a19859fb5bcc32101578b

  • SHA1

    ddd0c1097cb8b4a24699c88adf23ac020121fc16

  • SHA256

    0daec5d74297591bda4fb4aedd1c91643b7cd4312d65e5eb664d2328f0cd5c52

  • SHA512

    f1572a9847203fe81736d7e8cf639d04d461646cab798f5699a6e5b94d97797114e273fddfe1fb8776297ee7f1dbe980e30da8921234cf0cc14db22c388743ed

  • SSDEEP

    12288:7R2/D6NgsWNlQp1TFqblyEocs8vMylZrwnwXifiKPt4r:Y/mWNlQp1cpyEocZMyDzXiaKl4r

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.100:2404

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-KZJPKT

  • 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

      0daec5d74297591bda4fb4aedd1c91643b7cd4312d65e5eb664d2328f0cd5c52.exe

    • Size

      623KB

    • MD5

      a1cc10092e7a19859fb5bcc32101578b

    • SHA1

      ddd0c1097cb8b4a24699c88adf23ac020121fc16

    • SHA256

      0daec5d74297591bda4fb4aedd1c91643b7cd4312d65e5eb664d2328f0cd5c52

    • SHA512

      f1572a9847203fe81736d7e8cf639d04d461646cab798f5699a6e5b94d97797114e273fddfe1fb8776297ee7f1dbe980e30da8921234cf0cc14db22c388743ed

    • SSDEEP

      12288:7R2/D6NgsWNlQp1TFqblyEocs8vMylZrwnwXifiKPt4r:Y/mWNlQp1cpyEocZMyDzXiaKl4r

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Loads dropped DLL

    • Accesses Microsoft Outlook accounts

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/nsExec.dll

    • Size

      6KB

    • MD5

      fa299e199922b3ba833be655a8d71b75

    • SHA1

      4d74c53bb6927a2831df93af26f3e4e4fb007797

    • SHA256

      49a6a1c1f19574b2a247ce6c5adc0751e046d27c30912816ba415f871b74ae5d

    • SHA512

      7ceb64d3d826762994c48ffad3ad2234410cbcdbedfce9a2dc03d18915ce22d687173f90e954d7bdb0eae76954c360059ad761aedc48cd7fa4ec29d6094f6a65

    • SSDEEP

      96:v7fhZwXd8KgEbAa9PweF1WxD8ZLMJGgmkNO38:4N8KgWAuLWxD8ZAGgmkN

    Score
    3/10
    • Target

      Mellemregningen14.Dum

    • Size

      50KB

    • MD5

      c1a99f6520552a8cd0186b390887b21c

    • SHA1

      1982354532b61d5a6f34758473ba8fa0d526aac9

    • SHA256

      e6df54df126140a5a615ad2ef44fc375a6276080fd1c39ad6bd16dbb5e3c2204

    • SHA512

      fe5f00348ca1e8a618dee573d45aeed609d91d24119a9b1609aa77c9cbb9ee901892c137020fb13bd037e316620c91a299cead1ff7f48a28713d450ba326a1be

    • SSDEEP

      1536:Ph2HGRZuseVJyL798Baok5Ezn+Yx1dU7gLBwgR:KGruBJs7Ork5Y7s7MBwgR

    Score
    8/10
    • Modifies Installed Components in the registry

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Enterprise v15

Tasks