Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2024 15:00

General

  • Target

    MalwareBazaar.exe

  • Size

    2.3MB

  • MD5

    2a65843b474feff5256bd673b4ff88ae

  • SHA1

    0c80fb17f84d478941ab4d51fddcccaf274da31d

  • SHA256

    d07cfaeced4e8bba1c9fdc8006dc80105cf654759c4d74d4d2d2964a0f6e9230

  • SHA512

    7f8a5a684273a031b648129870d493c9a2d63838a8179b8ce32e2c94f956c1a1196ef404d346e6ca42016489fa949b985bc598111dde0249c64c12a668b77292

  • SSDEEP

    49152:E2u/BMdg532rpsjCMqigjns2+a95PlpiH9MzMrcgt4hzNriBldyQJ/MqmG:DrpEZI0BnlJNh

Malware Config

Extracted

Family

remcos

Botnet

Dollar Man

C2

178.23.190.118:52499

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-SJ9MVF

  • 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.

  • Detected Nirsoft tools 9 IoCs

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

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\klhpyddhswuerc"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3752
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\unuhzvoifemjbiccd"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:2964
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\ehaaaoyctneoepyomxhq"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    78f2b4075a415144ee24a18ddf75087e

    SHA1

    ff0b4c39aa26cbea27ad0cb8d896bb8c1a2e1ad5

    SHA256

    7cd6f3b6cc69c47b41627c2c929ca466fead92747aa5c297f0d1bd5196fa44dd

    SHA512

    8472282a1afa58c90a93cc46b325d62a0f157d2f5b11c6bbe349fa27a2a5838db77c93bfc8d37f940606bf7527c919d921b193cb660bb2c456db054b667a1822

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

    Filesize

    4KB

    MD5

    f5c7d652e408753fba07ef2069ab8a13

    SHA1

    9815cd1ae93306cdacabf573ad54f1ef970b3913

    SHA256

    6734744077bca26577abb89d0b811bef713c2a97e7fcc70888d4990d500fa67a

    SHA512

    43570265f839d5e435c83052501c24ed182bda5a3a9db0f6eb519c251af85dafa10825a3995c66e1e88a7bcbcf9c7dcbbd2f24d661c05b7f20f5aa35f536bc80

  • memory/1332-19-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1332-22-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1332-23-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1332-34-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1332-28-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1728-14-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-0-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-11-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-1-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-9-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-8-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-7-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-72-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-64-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-4-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-3-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-10-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-2-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-42-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1728-41-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1728-38-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1728-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1728-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2964-17-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-24-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-32-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-33-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-26-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3752-36-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3752-18-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3752-27-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3752-25-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3752-15-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB