Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    12-07-2024 18:39

General

  • Target

    c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe

  • Size

    1013KB

  • MD5

    8f251ec69c2faae7090b2bf78cfd4881

  • SHA1

    8cdc6e16ad2adcbb3002b772d05e78a725be2c9a

  • SHA256

    c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89

  • SHA512

    1b05341213933cbe65d39c402e58e042ec39bae56350201c04f0043e35cd39428b0aeed1737f3bc7765b79adbca94c58cfe6d177f0cb4ef9d79a053ed89381df

  • SSDEEP

    24576:K1+mRLN3T4GNvq1dtY4eyjT3ew6Bd8p/VDTNl8pT+qEl:aRpcGNvqdY4eyjTHW8p/hJqe

Malware Config

Extracted

Family

remcos

Botnet

THEONE

C2

45.66.231.218:4259

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-UII1DP

  • 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).

  • 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\c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe
    "C:\Users\Admin\AppData\Local\Temp\c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1736
    • 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\c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RAFUlP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2420
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RAFUlP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC97.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2264
    • C:\Users\Admin\AppData\Local\Temp\c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe
      "C:\Users\Admin\AppData\Local\Temp\c008880967c64851e47f97ca7ed5a9f8d2029dd87b3ae6eb77f19c43d8fefd89.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    15ebbbfdfc9f4a168cec87bcd8301c8d

    SHA1

    1bc17cf60e0b219014f8a68f658ea39eb200d6cd

    SHA256

    6cc82328c0a25f9743a9faa68ce3cc2144d0ce9c2ff562248bb53006ba9f2818

    SHA512

    73db2b9404337f8a3160dc749da1ef5fe050e614334e200630871ecc7ed5d5ce58d261a35989e84b23817c32513cc6ecbd8fae91ec909f626dea28142b901bec

  • C:\Users\Admin\AppData\Local\Temp\tmpFC97.tmp

    Filesize

    1KB

    MD5

    4e6f5eac3b0d0130c6e24b8756fb65a3

    SHA1

    382382a81087d3ec3795a1643d59bcbd056edfbd

    SHA256

    669df49b947139f2aea162efdb4db936f31535c40d0519144e5df3c57b960441

    SHA512

    ae0388abb6a99fa41d61d314d7988362bfb9c263895f26a4b2dc564c9fccada72e253440c0d230766b27e6e12faeb42d2f15f3abbbd01e1b6902955edbbf9776

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    e90a9105c70e0b83911e07276da77510

    SHA1

    fda2cd6bb0dacee06a1828252ad41d02943505f9

    SHA256

    af497a9f0bd9bbc80a22fe6b42c8564e0386e346001598aff0ce621e7d74b296

    SHA512

    e8c5a4150d8fe06f991c680ec129da2d528d9ea3d7fa5ecbce4658816b2a77a1b6c197a24898fec9d140e32dec6df15de5080e60e69148c0b0918d027bbc03ad

  • memory/1736-0-0x000000007484E000-0x000000007484F000-memory.dmp

    Filesize

    4KB

  • memory/1736-1-0x00000000012D0000-0x00000000013D4000-memory.dmp

    Filesize

    1.0MB

  • memory/1736-2-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/1736-3-0x00000000002A0000-0x00000000002B0000-memory.dmp

    Filesize

    64KB

  • memory/1736-4-0x0000000000540000-0x000000000054E000-memory.dmp

    Filesize

    56KB

  • memory/1736-5-0x0000000004D90000-0x0000000004E50000-memory.dmp

    Filesize

    768KB

  • memory/1736-42-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2780-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2780-32-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-18-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2780-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB