Overview

overview

10

Static

static

1

RFQ No. 54...la.xls

windows7-x64

10

RFQ No. 54...la.xls

windows10-2004-x64

1

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General

  • Target

    RFQ No. 5490490.xla.xlsx

  • Size

    49KB

  • Sample

    240327-hmg5naeg93

  • MD5

    dba95d2f630d7e2acde0f139b9bbaf2e

  • SHA1

    5396681f648bec74056b55bd01a265eba43c2fc6

  • SHA256

    f5ab99bae38d4910c1786a50abbfb3bd3c7b80e87ad86d5ce08405a9b571bce6

  • SHA512

    1e8621a1098b6711b389f9876b8b7f656d80e64e893423e6d15d22bbc34e510c4382467cd65d333a57c8a5c1c6472acca5c58c3ed1fda27a3d287fae4aefad1f

  • SSDEEP

    1536:iX68U7CPCEj2CqAQO5MQC23zMt0X5z/v5/bH:iX68ZaEj2Ch5J3y0dX5

Score
10/10
remcosremotehostpersistencerat

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

      RFQ No. 5490490.xla.xlsx

    • Size

      49KB

    • MD5

      dba95d2f630d7e2acde0f139b9bbaf2e

    • SHA1

      5396681f648bec74056b55bd01a265eba43c2fc6

    • SHA256

      f5ab99bae38d4910c1786a50abbfb3bd3c7b80e87ad86d5ce08405a9b571bce6

    • SHA512

      1e8621a1098b6711b389f9876b8b7f656d80e64e893423e6d15d22bbc34e510c4382467cd65d333a57c8a5c1c6472acca5c58c3ed1fda27a3d287fae4aefad1f

    • SSDEEP

      1536:iX68U7CPCEj2CqAQO5MQC23zMt0X5z/v5/bH:iX68ZaEj2Ch5J3y0dX5

    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Abuses OpenXML format to download file from external location

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks