Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-03-2023 16:23

General

  • Target

    Mensaje De cobro N°03, Cobro de Administración vencida..exe

  • Size

    880KB

  • MD5

    da7acde65b7eb804162b577605f539b7

  • SHA1

    fcf94aed79d6853a184ec90f4d0df4594e3b02f4

  • SHA256

    daf1a1aade909546d0e1b6ef05f6ee947b429988722ffb0253bed11e9b1bd80e

  • SHA512

    5d5ba005612c00c97704f22920481161c227fec7bb1d1dfc4761f3e4645dbfa4d486aba10a63ec0de8ac270fbf6b15971d6c26e126eeae32727816861941ca32

  • SSDEEP

    12288:UWb4FlLKHFjcs3KKm1O5iMaVKXO2cBZMB+/KTLefMM/jWSc5gA7yXZQJ/scAlibr:/+KmIi8cBOKA2z/jo5gA7O+J/sbQbr

Score
10/10

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

PLATA

C2

santiagoroblesplata.con-ip.com:1014

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-IPJMNR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 49 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Mensaje De cobro N°03, Cobro de Administración vencida..exe
    "C:\Users\Admin\AppData\Local\Temp\Mensaje De cobro N°03, Cobro de Administración vencida..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eOPCeE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3684
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eOPCeE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp156C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3152
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1584
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:3300
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4748
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1368

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jet2xg11.1se.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp156C.tmp

        Filesize

        1KB

        MD5

        35e5147a154c95d07e01d35b4cf1046d

        SHA1

        659aee5d1601c42b37f148bf0bf9782dad450f8a

        SHA256

        b5a072ad1dc4f4d6dde7c6aa4b6ec58336ed5438e133c3dfdc55696bba4337e2

        SHA512

        4f39b2ba9dec58c4322161718f0354ac86c875f225240f61d72b7c9a1d098234415cb3cf14c6d3e5483542361f7037f3489445d314a6d0a49fdea786f3b8b5b2

      • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

        Filesize

        170B

        MD5

        035e352219bab6897d08f2bd240d314c

        SHA1

        3e27d5265bf3e48bc0a840d43fb8d77e86b76f86

        SHA256

        78fdd88b7110e780f220f8f47a56adda60301fc873904eae2a6cf95f39fd86b0

        SHA512

        73a407c1ff92c6bef6d35537c373a1dc71ccf4bd75792c8b5286450423d1116cb96aba5694751ca2ebc02a8cb78b866a1b73e198bbf51c68a9391653596b7899

      • memory/1368-234-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-233-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-232-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-238-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-244-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-239-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-242-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-243-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-241-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1368-240-0x00000230B28E0000-0x00000230B28E1000-memory.dmp

        Filesize

        4KB

      • memory/1656-136-0x0000000004F10000-0x0000000004F20000-memory.dmp

        Filesize

        64KB

      • memory/1656-139-0x0000000004F10000-0x0000000004F20000-memory.dmp

        Filesize

        64KB

      • memory/1656-133-0x0000000000380000-0x0000000000462000-memory.dmp

        Filesize

        904KB

      • memory/1656-137-0x0000000004CD0000-0x0000000004CDA000-memory.dmp

        Filesize

        40KB

      • memory/1656-138-0x00000000063B0000-0x000000000644C000-memory.dmp

        Filesize

        624KB

      • memory/1656-135-0x0000000004D00000-0x0000000004D92000-memory.dmp

        Filesize

        584KB

      • memory/1656-134-0x0000000005360000-0x0000000005904000-memory.dmp

        Filesize

        5.6MB

      • memory/3300-207-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-218-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-265-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-171-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-264-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-262-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-261-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-184-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-260-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-259-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-256-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-255-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-254-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-253-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-250-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-249-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-196-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-197-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-199-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-200-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-201-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-202-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-203-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-206-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-248-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-208-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-209-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-211-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-212-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-213-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-214-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-216-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-217-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-247-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-219-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-147-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-222-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-223-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-224-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-225-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-228-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-229-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-230-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-231-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-150-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-151-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-154-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3300-155-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/3684-191-0x00000000074D0000-0x00000000074DE000-memory.dmp

        Filesize

        56KB

      • memory/3684-173-0x0000000070B30000-0x0000000070B7C000-memory.dmp

        Filesize

        304KB

      • memory/3684-158-0x0000000002580000-0x0000000002590000-memory.dmp

        Filesize

        64KB

      • memory/3684-156-0x0000000002580000-0x0000000002590000-memory.dmp

        Filesize

        64KB

      • memory/3684-146-0x0000000005120000-0x0000000005748000-memory.dmp

        Filesize

        6.2MB

      • memory/3684-144-0x0000000002600000-0x0000000002636000-memory.dmp

        Filesize

        216KB

      • memory/3684-169-0x0000000005FA0000-0x0000000005FBE000-memory.dmp

        Filesize

        120KB

      • memory/3684-152-0x0000000004F50000-0x0000000004F72000-memory.dmp

        Filesize

        136KB

      • memory/3684-170-0x0000000002580000-0x0000000002590000-memory.dmp

        Filesize

        64KB

      • memory/3684-157-0x0000000005850000-0x00000000058B6000-memory.dmp

        Filesize

        408KB

      • memory/3684-159-0x00000000058C0000-0x0000000005926000-memory.dmp

        Filesize

        408KB

      • memory/3684-190-0x0000000007520000-0x00000000075B6000-memory.dmp

        Filesize

        600KB

      • memory/3684-189-0x0000000007310000-0x000000000731A000-memory.dmp

        Filesize

        40KB

      • memory/3684-188-0x000000007FA50000-0x000000007FA60000-memory.dmp

        Filesize

        64KB

      • memory/3684-187-0x00000000072A0000-0x00000000072BA000-memory.dmp

        Filesize

        104KB

      • memory/3684-186-0x00000000078E0000-0x0000000007F5A000-memory.dmp

        Filesize

        6.5MB

      • memory/3684-183-0x0000000006F70000-0x0000000006F8E000-memory.dmp

        Filesize

        120KB

      • memory/3684-192-0x00000000075E0000-0x00000000075FA000-memory.dmp

        Filesize

        104KB

      • memory/3684-172-0x0000000006550000-0x0000000006582000-memory.dmp

        Filesize

        200KB

      • memory/3684-193-0x00000000075C0000-0x00000000075C8000-memory.dmp

        Filesize

        32KB