General

  • Target

    25112024_0939_URGENT!! DHL invoice SG00101637 Adobe�pdf.vbs.zip

  • Size

    8KB

  • Sample

    241125-lmk34azpbz

  • MD5

    17891ef44876b80a505d789f75c2901f

  • SHA1

    bd6d92ad5c73e59be46acc77ce6b6a3c6cd9a493

  • SHA256

    f31f8fd098463d0161d12babd2e94fc538a8b4db0d59b6dd75961914673aba24

  • SHA512

    7806a6121a65b30d7a62f15b4b66ff574664528950ef3169ee29300ad26565a43d26b1662eb932757bbefd015acc4bcf25121e8bd7ea870cfd39de1180946f76

  • SSDEEP

    192:gbWKOcL2vhS0ah33NA93V17dvlTRITjbtZB3fzt4EkdGO:gbBAvpQduFNNK/nVfh4r8O

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

gnsuw4-nsh6-mnsg.duckdns.org:3613

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-8OIXMO

  • 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

      URGENT!! DHL invoice SG00101637 Adobe·pdf.vbs

    • Size

      15KB

    • MD5

      84183b62bf0c860efeaea9604efbfe3a

    • SHA1

      4cc58ad007613902ff2118cb7091042f37ba394f

    • SHA256

      b4eff9a95f5eeeaee8c4e4a8ce366f478acf9f309e1df6db8a93375045982c5a

    • SHA512

      916c80269eec78f3391e67819a3fa9a4a64a52a2e7909c5a2a3f310211e1aba01534a932f6df06df8d70ec0ea7d641c7e5b9b5e527045a6f27b65a128f19a81b

    • SSDEEP

      384:WxaWEl8MDBPMpf/X1tBoCPSn5otbq+4Xs4kDyLuoWt:gEl8MDBPy3X7BoBCtbq+4XspDyHWt

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks