Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 03:05

General

  • Target

    c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929.exe

  • Size

    1.3MB

  • MD5

    6b7314e8a04ad8436c3aff06f3918ea6

  • SHA1

    61c5aca05c76396e70054b732d9afb7d4a5e293d

  • SHA256

    c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929

  • SHA512

    00b5c837c36cb44d5b1a7c724746daf85b4a1d4b89d55a2d81e8999ed34035baa84a8f9fc976704ec92afe52a316c09eb7b7d012d66d8d5eea284d31d5974baf

  • SSDEEP

    24576:LAHnh+eWsN3skA4RV1Hom2KXMmHaUCTOhtduicYukHxavC55:mh+ZkldoPK8YaUC6h/qg

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

shgoini.com:30902

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-7XHN5V

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 18 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929.exe
    "C:\Users\Admin\AppData\Local\Temp\c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Local\directory\excel.exe
      "C:\Users\Admin\AppData\Local\Temp\c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929.exe"
        3⤵
          PID:1740

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Thebit

      Filesize

      483KB

      MD5

      a04675531940882479c988422f627c21

      SHA1

      48bb45a49c1600e8f16ffe612170787f841cd969

      SHA256

      011bee0b69f6d996fd2ddced3a417739375f6a3909ff46d23bcca2f0d14680d5

      SHA512

      f8f2e1c49d7a7153a8522488a259ff37927c6c133b2030fdf70728aa034b02f2fd704d2bba7ad6660eb0f6b3696108a26df1c479723330f49ea0e462c13ba24c

    • C:\Users\Admin\AppData\Local\Temp\saccule

      Filesize

      29KB

      MD5

      7b4ee3164750a624febb01f867bdb208

      SHA1

      2c68f3bc9f02ef7229da72935b33053885ad19e0

      SHA256

      fc648d1008816e63cb562eec07b7ae56ab4c5be06da13282a213f9c9e6f3c2a5

      SHA512

      aa088d535f08520ba2299da40c2e5c6ee1375eb67ac9f2438f431bda1312d024e38793c1b074f08b0accf8bf89db630b46de5b9883036b84ab50b473bbc1dc41

    • \Users\Admin\AppData\Local\directory\excel.exe

      Filesize

      101.3MB

      MD5

      969e7125ce8c552f9d7899df54b54336

      SHA1

      9596f483d654b10af236c4d0968049600a8b9d55

      SHA256

      f9c8d0f80cefe182b3f56d1fbb45226cb61aef3c47f664bee2016c90259f6e4b

      SHA512

      6b16cd04346062176356199c10c4d55f2323d64e79b835e477e6a060bfe9210dd8981e9debc6e9232301effb65c09d07dd6997bb8e325eb70c44dc5c0c207c91

    • memory/1740-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-40-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-32-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-34-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-35-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-49-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-30-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-42-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-46-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1740-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2348-10-0x0000000000260000-0x0000000000264000-memory.dmp

      Filesize

      16KB