Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 01:34

General

  • Target

    932c8687387b5fa94ef7b5c11358b0d0dc90ea488729382e09ec126d61457d6d.exe

  • Size

    879KB

  • MD5

    1d818c67cd7b934a84588a3207b2e50a

  • SHA1

    f143719dafea314eb6ae638e9a7694da54c3a445

  • SHA256

    932c8687387b5fa94ef7b5c11358b0d0dc90ea488729382e09ec126d61457d6d

  • SHA512

    41e68271ed5c52427c1e9953bc3ac9c0562541a186a6a44712602dd88968fdd2d896f3c56dccc39dac512c9885e0eb9c194d26f148ce484418b001d1bf60401e

  • SSDEEP

    24576:Ovd+fC6BjsHpE+dOj+18tyAgajKCzMlTyFjSIi0/:O1+a6NsHp3MlhOGM1mO0/

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.c42staging.com:2404

www.vdoclabs.com:2404

www.ozkol-aluminyum.com:2404

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

    dfghj

  • mouse_option

    false

  • mutex

    Rmc-QCH1J0

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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\932c8687387b5fa94ef7b5c11358b0d0dc90ea488729382e09ec126d61457d6d.exe
    "C:\Users\Admin\AppData\Local\Temp\932c8687387b5fa94ef7b5c11358b0d0dc90ea488729382e09ec126d61457d6d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2400
    • 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\932c8687387b5fa94ef7b5c11358b0d0dc90ea488729382e09ec126d61457d6d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wTTruYPumnUe.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1012
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wTTruYPumnUe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA6DA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2740
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\dfghj\logs.dat

    Filesize

    144B

    MD5

    406566cd6b79844eb1b7a8d7961bce4d

    SHA1

    441f4d626b4253eff2d4e0169c67f20cc13cd207

    SHA256

    1983ffde1dbd3da31cf460add7bc98f33f4db2695f116e033be179317f4f1ab0

    SHA512

    2f7654421e76f82411683e8a22976c11f74d1e375587ed773941b4b5e27b5683701cc5d7050f05f4fbf95f32972cd51a7ee8458cca94d4ca5a1871919ff2195f

  • C:\Users\Admin\AppData\Local\Temp\tmpA6DA.tmp

    Filesize

    1KB

    MD5

    4b8ecb0343692591f7d5516f49179489

    SHA1

    f0345f674af1476f53d99f57b7202cf643422c18

    SHA256

    4c0ec1cf629f75e3b2dbb703657b1d69c586ba9a2289594e9505a4a38e1b5b73

    SHA512

    0d6577fd56f5dfc8bbb736e3dddcb4307f90c5831d7c55e8f8f0367389931829e3765473219468bc3c0e14c08a4d7f467b96e7f04cbdf0f51297fffb14b6a73e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ISFY61UZKKVZFBA8KM5S.temp

    Filesize

    7KB

    MD5

    ce0c00b72ef1c6a636efe02f33dd5b4c

    SHA1

    914ada8ae98327988bb1f182e545d6bb0f9e1ad2

    SHA256

    5c7ebb4b982ddb3b795a7199f7a3d2d03ecd317dd88102cdd6e5b2f967762d98

    SHA512

    515dc9a18244d0fef9f7fc77af45b2762fe2989413238c17e293518a34e275d86fe7558696d6709613c8976807f2e183e57ac6bba0e24b70e761f95a8f83ad5c

  • memory/2400-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2400-1-0x00000000000C0000-0x00000000001A2000-memory.dmp

    Filesize

    904KB

  • memory/2400-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2400-3-0x0000000004FD0000-0x00000000050AA000-memory.dmp

    Filesize

    872KB

  • memory/2400-4-0x0000000000530000-0x0000000000540000-memory.dmp

    Filesize

    64KB

  • memory/2400-5-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2400-6-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2400-7-0x00000000058A0000-0x0000000005960000-memory.dmp

    Filesize

    768KB

  • memory/2400-43-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3020-34-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-32-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/3020-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-55-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-63-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-71-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-72-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3020-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB