Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 01:48

General

  • Target

    d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe

  • Size

    915KB

  • MD5

    02d513fa3a4c04f1ffce97c25caccdff

  • SHA1

    853948f7ff1d69a293c4f4617185c24b9859e6dd

  • SHA256

    d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a

  • SHA512

    9a9b925e7d5acec5216ecb64f7352a8a27598106452984f08155f2bef640fe1ad93ff3a7869cacfaec2514641740c41fcc0e7e4f0172eaa7072c1c9c05087ab3

  • SSDEEP

    24576:SgW2J4Sl29MaW6EEJJQEtTShtxMwwW7yUVzmoeli:SgjJYSoxtuDxZlyUVzmo

Malware Config

Extracted

Family

remcos

Botnet

GeneralWire-Slaves

C2

milliondollar23.duckdns.org:3984

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-TWU43D

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
    "C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2796
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24B0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2716
    • C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe
      "C:\Users\Admin\AppData\Local\Temp\d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    b645cbfb92f87cb83a4df384ce9db701

    SHA1

    e34f2d436b57148cd6d75eeded5522728a483181

    SHA256

    448fd8ac3f7b424a109187f4446daa01ff0fbda740101b28fbade232291d4f77

    SHA512

    03e9960187f9203d6c3d222707deefbc291960e9f148037fb3e631e84e9fc551fd77afb35fccdb60c2b06ffc46e650881a977ca4a7120db6e1e3993bffba1b8b

  • C:\Users\Admin\AppData\Local\Temp\tmp24B0.tmp

    Filesize

    1KB

    MD5

    22a2d6ac0485fdea4f4e68c1edc6f8a7

    SHA1

    d5710e38cfba84ccf45082f2ee8dcb27fddc664e

    SHA256

    34bfaa1c7e59063368c798ebd58a2a3b7f5013e466d3bb31d31d7224dd22b652

    SHA512

    7c02342835dc72f5a28d56f0b6c0e348e6fede15b308037f1b14cacac3278d18b24425f5ea16e6e36bfbc0d06915561a5b40dfc0d8243d2356c92a8ae714ac6b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HXVW7N7JNBF04DS2S6KP.temp

    Filesize

    7KB

    MD5

    c14639806546e81d4d563cfe846a198b

    SHA1

    be73f6af25beeb1adff7b0b95ef685a9bde22633

    SHA256

    0547d9646c7986b75f674e4929cccde8bdf9022ea7d7e65c27b679048d5f6f1b

    SHA512

    3ef3dee4618610383b1bd2e1f9ee05c242ea4372c13c7eacff4dc784d5c2cda77400c24f752530d8225c843e1b1b5e49fc674ed5e178f9d81e1efefa8c5b7288

  • memory/2424-0-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

    Filesize

    4KB

  • memory/2424-1-0x0000000000F60000-0x000000000104A000-memory.dmp

    Filesize

    936KB

  • memory/2424-2-0x0000000073D30000-0x000000007441E000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-3-0x0000000000480000-0x0000000000492000-memory.dmp

    Filesize

    72KB

  • memory/2424-4-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

    Filesize

    4KB

  • memory/2424-5-0x0000000073D30000-0x000000007441E000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-6-0x00000000054D0000-0x0000000005590000-memory.dmp

    Filesize

    768KB

  • memory/2424-42-0x0000000073D30000-0x000000007441E000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3032-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-32-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-70-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-69-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3032-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB