Overview

overview

10

Static

static

3

d3dx9_43.dll

windows7-x64

3

d3dx9_43.dll

windows10-2004-x64

3

scr_previw.exe

windows7-x64

10

scr_previw.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    92af5439d1fc0172fcd8068957d132fb89256ab1d93457120e7b4f1a1910e757.zip

  • Size

    2.9MB

  • Sample

    240907-bw866syaml

  • MD5

    36fa13a66ddc3817943694b919523e54

  • SHA1

    8643089b8d11ea880fb90e8daa48edd8e54e7a4c

  • SHA256

    92af5439d1fc0172fcd8068957d132fb89256ab1d93457120e7b4f1a1910e757

  • SHA512

    69bcedf91e460445c8aad66a79fa8f60639cc9b7f6e1c230c69d83049de9b16511e3b613616fa3e22d6ab22ba439bcc802c66460fbe00950aa0096526645ed70

  • SSDEEP

    49152:ZNira6ZlWR5QEezY1n+hlEJHogdmNcajLTdn96P2up7mnEhyha/hl0:yrnK5Qx5huJIgdmcajLy6EQF

Score
10/10
remcosstalaggdiscoveryrat

Malware Config

Extracted

Family

remcos

Botnet

stalagg

C2

5.181.156.117:8576

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-5TL39W

  • 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

      d3dx9_43.dll

    • Size

      1.9MB

    • MD5

      46e435aecb557fcb16ae2ea3b22ab7fd

    • SHA1

      5290156599fd9575c4401c80949ad5672fe64da5

    • SHA256

      70e0b720bb461503acbd947a8355fb629d703b8d7f99ddfbb09a0c71886861da

    • SHA512

      621010aa44868062361c6dbb670f8664c370ddcb0afbb5835765470522c03bb5ac779e86236cfffdcf343cbc582f81beacd2a7108d78c90d4dfc4c38e7d23bb3

    • SSDEEP

      24576:EUtU6OIyl2Wy9M3bJ45fPS0zFZghQ6aOiFaKOE31GrvFXl74YZ29X1MDd6olmrBb:E566l2u45BiNYFrz31Cv3D29kd6k9

    Score
    3/10
    discovery
    behavioral1behavioral2

    • Target

      scr_previw.exe

    • Size

      2.2MB

    • MD5

      d9530ecee42acccfd3871672a511bc9e

    • SHA1

      89b4d2406f1294bd699ef231a4def5f495f12778

    • SHA256

      81e04f9a131534acc0e9de08718c062d3d74c80c7f168ec7e699cd4b2bd0f280

    • SHA512

      d5f048ea995affdf9893ec4c5ac5eb188b6714f5b6712e0b5a316702033421b145b8ee6a62d303eb4576bf8f57273ff35c5d675807563a31157136f79d8a9980

    • SSDEEP

      49152:rHOut2Bf0ajIM8XEEN6N0rE/I/vqn7krQEQusd5F:VbaMbXbE/I/SnwrQEQusd/

    Score
    10/10
    remcosstalaggdiscoveryrat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks