Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 08:13

General

  • Target

    d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    d5ee80ad1cc23eeb1b25cde2af60c9c1

  • SHA1

    476d6a75a019ed3b2bb866c6f89e2c0970dccf22

  • SHA256

    2a51ff41bcd2af80bf83a79b591a3da996bcc33043cb7f0b7b4493bff7a8a688

  • SHA512

    8dc1e1fe6e06049357fee74820ad0922524a0755867e51a511bd4c948ea2cd9cabc2d5b65bf4e279c2dd55a759aee7d35d683385ae4a08e0c0b40c5c8a4d93eb

  • SSDEEP

    6144:M/1vlzqKOMCfCO0iniUIO++3DwXZvqiQUF5l2Pra:S

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Ose_2021 NOIP

C2

gdyhjjdhbvxgsfe.gotdns.ch:2177

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    win.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-PCZ95N

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    win

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 18 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:276
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2492
    • C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe"
      2⤵
        PID:2340
      • C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe"
        2⤵
          PID:2292
        • C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe"
          2⤵
            PID:972
          • C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\d5ee80ad1cc23eeb1b25cde2af60c9c1_JaffaCakes118.exe"
            2⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2752
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1800
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
                4⤵
                • Loads dropped DLL
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:2700
                • C:\Users\Admin\AppData\Roaming\win.exe
                  C:\Users\Admin\AppData\Roaming\win.exe
                  5⤵
                  • Executes dropped EXE
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:2676
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c timeout 1
                    6⤵
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:592
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout 1
                      7⤵
                      • System Location Discovery: System Language Discovery
                      • Delays execution with timeout.exe
                      PID:2604
                  • C:\Users\Admin\AppData\Roaming\win.exe
                    "C:\Users\Admin\AppData\Roaming\win.exe"
                    6⤵
                    • Executes dropped EXE
                    PID:1936
                  • C:\Users\Admin\AppData\Roaming\win.exe
                    "C:\Users\Admin\AppData\Roaming\win.exe"
                    6⤵
                    • Executes dropped EXE
                    • Adds Run key to start application
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of SetWindowsHookEx
                    PID:3044
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 920
                    6⤵
                    • Loads dropped DLL
                    • Program crash
                    PID:716
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 276 -s 892
            2⤵
            • Program crash
            PID:2796

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\install.vbs

          Filesize

          398B

          MD5

          4a74e626596d6e66b4bbc59ee6848f2d

          SHA1

          047849ac8735ecc0943428c7cd5e00b52eee06ed

          SHA256

          98bd6dc219a7a3e04d3d67bbec9f0b4d4640831a3a6be0a0078b050041088b0e

          SHA512

          1cd943482d0f1ce2ffaf6ee4a82895e4d57c52051bb14bbda0548cf072b4c5cbe719d2cdb549b5ae7c0241dd9c68dd9d1674acd26aed684b8145500079cc5403

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

          Filesize

          66B

          MD5

          6da661fde1fe0c3c2ceb7ef0f18f3379

          SHA1

          1e620b1b4c2fa8e1420917c5d40e365a0fed1268

          SHA256

          764c1ce9c84464a50dfd68b9aad5c0cbe2cb685675222e73ad86704a903702c0

          SHA512

          48fa5dfe253df23e8a9f4104dbbd3cb01c5f82b87d18f827f0977d1a0e586f6612b11d9d38cf620eb56120b70575f8d5dd4d838087b12cf1668d1b9df56e987c

        • \Users\Admin\AppData\Roaming\win.exe

          Filesize

          1.3MB

          MD5

          d5ee80ad1cc23eeb1b25cde2af60c9c1

          SHA1

          476d6a75a019ed3b2bb866c6f89e2c0970dccf22

          SHA256

          2a51ff41bcd2af80bf83a79b591a3da996bcc33043cb7f0b7b4493bff7a8a688

          SHA512

          8dc1e1fe6e06049357fee74820ad0922524a0755867e51a511bd4c948ea2cd9cabc2d5b65bf4e279c2dd55a759aee7d35d683385ae4a08e0c0b40c5c8a4d93eb

        • memory/276-1-0x0000000000120000-0x0000000000268000-memory.dmp

          Filesize

          1.3MB

        • memory/276-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

          Filesize

          6.9MB

        • memory/276-3-0x0000000000450000-0x0000000000484000-memory.dmp

          Filesize

          208KB

        • memory/276-54-0x0000000074420000-0x0000000074B0E000-memory.dmp

          Filesize

          6.9MB

        • memory/276-0-0x000000007442E000-0x000000007442F000-memory.dmp

          Filesize

          4KB

        • memory/276-53-0x000000007442E000-0x000000007442F000-memory.dmp

          Filesize

          4KB

        • memory/2676-28-0x00000000003D0000-0x0000000000404000-memory.dmp

          Filesize

          208KB

        • memory/2676-27-0x0000000000280000-0x00000000003C8000-memory.dmp

          Filesize

          1.3MB

        • memory/2752-9-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-6-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-18-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-21-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-14-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-4-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-5-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2752-7-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-12-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/2752-8-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/3044-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/3044-45-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/3044-46-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB

        • memory/3044-49-0x0000000000400000-0x0000000000422000-memory.dmp

          Filesize

          136KB