Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 16:41

General

  • Target

    Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe

  • Size

    1.1MB

  • MD5

    bc74e2d086d7bef42c3604c1dafc3edb

  • SHA1

    f3ba507bee10af7e9fd64b1c70fecb975e216073

  • SHA256

    b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

  • SHA512

    0844fb41b40e29c363b7c62f39819569f405f6c038bc904afe1d2296ec08f3f339aef3f5e132b81be25819a3c90013b86af64e6737126175d8de88ec1cfd972f

  • SSDEEP

    24576:V2xjyUVJKPWlHhWp19hnxRpPNX7HLQUqckP9LbuLCnYng:IUUVJVlHkpVnx3d7HLpEVLtnY

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Adobe.exe

  • copy_folder

    Adobe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Adobe-OTOIRK

  • 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.

  • Remcos family
  • Detected Nirsoft tools 3 IoCs

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe"
      2⤵
        PID:336
      • C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\Draft - HBL# WSPAE1311198 VSL# COSCO NETHERLANDS V-067E.scr.exe"
        2⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1836
        • C:\ProgramData\Adobe\Adobe.exe
          "C:\ProgramData\Adobe\Adobe.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2904
          • C:\ProgramData\Adobe\Adobe.exe
            "C:\ProgramData\Adobe\Adobe.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2688
            • C:\ProgramData\Adobe\Adobe.exe
              C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\taslqyqnzxjffzenmozwq"
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:804
            • C:\ProgramData\Adobe\Adobe.exe
              C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\vcxeqripnfbkhfsrdympbmmj"
              5⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:1936
            • C:\ProgramData\Adobe\Adobe.exe
              C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\gwcwrjtjbntpsuodmjzrergssmj"
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:2444

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Adobe\Adobe.exe

      Filesize

      1.1MB

      MD5

      bc74e2d086d7bef42c3604c1dafc3edb

      SHA1

      f3ba507bee10af7e9fd64b1c70fecb975e216073

      SHA256

      b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

      SHA512

      0844fb41b40e29c363b7c62f39819569f405f6c038bc904afe1d2296ec08f3f339aef3f5e132b81be25819a3c90013b86af64e6737126175d8de88ec1cfd972f

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/804-80-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/804-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/804-72-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/804-77-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1724-3-0x00000000005C0000-0x00000000005D8000-memory.dmp

      Filesize

      96KB

    • memory/1724-6-0x0000000005F80000-0x0000000006044000-memory.dmp

      Filesize

      784KB

    • memory/1724-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1724-4-0x000000007463E000-0x000000007463F000-memory.dmp

      Filesize

      4KB

    • memory/1724-39-0x0000000074630000-0x0000000074D1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1724-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1724-0-0x000000007463E000-0x000000007463F000-memory.dmp

      Filesize

      4KB

    • memory/1724-1-0x0000000001310000-0x0000000001428000-memory.dmp

      Filesize

      1.1MB

    • memory/1836-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-11-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1836-21-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-19-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-17-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-15-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-7-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-28-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-13-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1836-9-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1936-74-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1936-78-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1936-75-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1936-79-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2444-84-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2444-82-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2444-85-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2688-91-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2688-70-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-67-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-68-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-66-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-65-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-64-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-57-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2688-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-62-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2688-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2904-37-0x000000007463E000-0x000000007463F000-memory.dmp

      Filesize

      4KB

    • memory/2904-40-0x000000007463E000-0x000000007463F000-memory.dmp

      Filesize

      4KB

    • memory/2904-38-0x00000000012A0000-0x00000000013B8000-memory.dmp

      Filesize

      1.1MB