Analysis

  • max time kernel
    143s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2024 13:39

General

  • Target

    ORDER#4510093083_PO_NEW_MATERIAL_JAN_20242.exe

  • Size

    483KB

  • MD5

    5e5c4d53d4c51e067287b3b2c5a0ccb5

  • SHA1

    cd2a82ebb5e573cd01c0b708a249401d35b9424d

  • SHA256

    c6190f275806fbc359dfb1ce50790b29355215fa3b9671ea5a81ac35293b9de3

  • SHA512

    b5d32d5ee4fb3503278bf367f42c962887db26202640e86ef2fa0ccf8cf95f0fd10c65ecb294b51d96616d12e09c601b561d7da55bf42e73d094cb8af08a5999

  • SSDEEP

    6144:XGC7W7BUJEflHwJVUesOjc3kv9MNfvfUuAhbLCrJHvg+JEVV8nU/uwtzSEdyS+tZ:Na7rNQJJpjcgyfvfUPs2PD4EdaMAboDQ

Malware Config

Extracted

Family

remcos

Botnet

2024

C2

72.11.158.94:1604

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    vexplorers.exe

  • copy_folder

    vexplorers

  • 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

    Rmc-800RNZ

  • 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.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 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 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_20242.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_20242.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_20242.exe
      "C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_20242.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of WriteProcessMemory
      PID:2652
      • C:\ProgramData\vexplorers\vexplorers.exe
        "C:\ProgramData\vexplorers\vexplorers.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:516
        • C:\ProgramData\vexplorers\vexplorers.exe
          "C:\ProgramData\vexplorers\vexplorers.exe"
          4⤵
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1912
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe
            5⤵
              PID:2736
            • C:\ProgramData\vexplorers\vexplorers.exe
              C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\sucoznidwyfqunbtwws"
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2288
            • C:\ProgramData\vexplorers\vexplorers.exe
              C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\fqvraydyyppahhmbxsrheneig"
              5⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:1012
            • C:\ProgramData\vexplorers\vexplorers.exe
              C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\dwpzzgsxkgxvxtxxohfoba"
              5⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook accounts
              PID:2044
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              5⤵
                PID:3000
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 912
                5⤵
                • Loads dropped DLL
                • Program crash
                PID:1604

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Modify Registry

      1
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      1
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\sucoznidwyfqunbtwws
        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • C:\Users\Admin\AppData\Roaming\Nonconsolable\Spirituosa.exe
        Filesize

        483KB

        MD5

        a7ec03cb53accf6dd62ac32f01160173

        SHA1

        1efdba6aba44dbd72fd48a115000c9fa6d542f47

        SHA256

        5d3e517cf5732d40c54fe03d4786ee08c14b29cb5751c4993e2d351e7490e901

        SHA512

        63fb1cfd5038c9051b0ad08d0f90a69c043aeb43b78596b5c733ef2112b44eb7c099f9b0e9daf52c3556a523a98466c223df94feeb5f64bd03f904c1590e2470

      • C:\Users\Admin\yawlsman\knowhow\Koftekldte\Gnomonologically\Septicemic.San
        Filesize

        245KB

        MD5

        ced89e164bfe18cae1aa190b4ae9178c

        SHA1

        94c44c548980a6092706a4ffb943592d9d1f325b

        SHA256

        1f2b3588330809595cb33273ed52c3d14299ca015eb8a70ccdc9ec4ad1ada7b2

        SHA512

        946cecce44eebcdd63f948992926d96f7863238312dc85d31bef7cb2bec31e21c95222d2852a06d0af515961a5164aabcf966ad283794bfa0da7eddb130df93c

      • \ProgramData\vexplorers\vexplorers.exe
        Filesize

        483KB

        MD5

        5e5c4d53d4c51e067287b3b2c5a0ccb5

        SHA1

        cd2a82ebb5e573cd01c0b708a249401d35b9424d

        SHA256

        c6190f275806fbc359dfb1ce50790b29355215fa3b9671ea5a81ac35293b9de3

        SHA512

        b5d32d5ee4fb3503278bf367f42c962887db26202640e86ef2fa0ccf8cf95f0fd10c65ecb294b51d96616d12e09c601b561d7da55bf42e73d094cb8af08a5999

      • \Users\Admin\AppData\Local\Temp\nsd5E18.tmp\System.dll
        Filesize

        11KB

        MD5

        3e6bf00b3ac976122f982ae2aadb1c51

        SHA1

        caab188f7fdc84d3fdcb2922edeeb5ed576bd31d

        SHA256

        4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe

        SHA512

        1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706

      • memory/516-49-0x0000000010000000-0x0000000010006000-memory.dmp
        Filesize

        24KB

      • memory/516-48-0x0000000077B60000-0x0000000077D09000-memory.dmp
        Filesize

        1.7MB

      • memory/1012-94-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1012-83-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1012-91-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1012-92-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1012-93-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1912-115-0x00000000004A0000-0x0000000001502000-memory.dmp
        Filesize

        16.4MB

      • memory/1912-107-0x00000000359A0000-0x00000000359B9000-memory.dmp
        Filesize

        100KB

      • memory/1912-103-0x00000000004A0000-0x0000000001502000-memory.dmp
        Filesize

        16.4MB

      • memory/1912-51-0x0000000077B60000-0x0000000077D09000-memory.dmp
        Filesize

        1.7MB

      • memory/1912-104-0x00000000359A0000-0x00000000359B9000-memory.dmp
        Filesize

        100KB

      • memory/1912-54-0x00000000004A0000-0x0000000001502000-memory.dmp
        Filesize

        16.4MB

      • memory/1988-17-0x0000000077D50000-0x0000000077E26000-memory.dmp
        Filesize

        856KB

      • memory/1988-18-0x0000000010000000-0x0000000010006000-memory.dmp
        Filesize

        24KB

      • memory/1988-16-0x0000000077B60000-0x0000000077D09000-memory.dmp
        Filesize

        1.7MB

      • memory/2044-82-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/2044-74-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/2044-86-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/2044-112-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/2288-76-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2288-75-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2288-71-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2288-67-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2288-100-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2288-72-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/2652-19-0x0000000077B60000-0x0000000077D09000-memory.dmp
        Filesize

        1.7MB

      • memory/2652-35-0x00000000004A0000-0x0000000001502000-memory.dmp
        Filesize

        16.4MB

      • memory/2652-23-0x00000000004A0000-0x0000000001502000-memory.dmp
        Filesize

        16.4MB

      • memory/2652-21-0x0000000077D50000-0x0000000077E26000-memory.dmp
        Filesize

        856KB

      • memory/2652-20-0x0000000077D86000-0x0000000077D87000-memory.dmp
        Filesize

        4KB

      • memory/2652-27-0x0000000077D50000-0x0000000077E26000-memory.dmp
        Filesize

        856KB

      • memory/2652-36-0x0000000077D50000-0x0000000077E26000-memory.dmp
        Filesize

        856KB

      • memory/2736-66-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB

      • memory/2736-64-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB

      • memory/2736-61-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB

      • memory/2736-63-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB

      • memory/2736-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/3000-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/3000-89-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB

      • memory/3000-84-0x0000000000400000-0x000000000049B000-memory.dmp
        Filesize

        620KB