Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-12-2024 04:41

General

  • Target

    VPN Plus V2/VPN Plus.exe

  • Size

    1.9MB

  • MD5

    2fee446f1eefd868e785c8a95d3720f3

  • SHA1

    20c436ebef64a8798d771aaf1caf26ba958ff979

  • SHA256

    25cf545a806ad8c33e1eaaeb424d90645900824c1a9ab79c5274c61654efe6b4

  • SHA512

    29add930c9f0b9c613c57997ee7a1c7d15be196d9d679aa0c8d3a528b34dd1f8356f1beb68bef6855d64bff84ee5e7a4ce6791893932bbb05ac653b930ed613e

  • SSDEEP

    24576:AnsJ39LyjbJkQFMhmC+6GD9srOHOPC0wrdqDQc7t/wqqh8jWpo:AnsHyjtk2MYC5GD+OHOPUkzj

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 2 IoCs
  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\VPN Plus.exe
    "C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\VPN Plus.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:216
    • C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\._cache_VPN Plus.exe
      "C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\._cache_VPN Plus.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Users\Admin\AppData\Roaming\VPN Plus Config.exe
        "C:\Users\Admin\AppData\Roaming\VPN Plus Config.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4648
        • C:\Windows\SYSTEM32\CMD.exe
          "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Windows Defender" /tr "C:\Windows\Registry" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2036
          • C:\Windows\system32\schtasks.exe
            SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Windows Defender" /tr "C:\Windows\Registry"
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2020
      • C:\Users\Admin\AppData\Roaming\VPNPlus.exe
        "C:\Users\Admin\AppData\Roaming\VPNPlus.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3556
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3712
        • C:\Users\Admin\AppData\Roaming\VPN Plus Config.exe
          "C:\Users\Admin\AppData\Roaming\VPN Plus Config.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:4600
        • C:\Users\Admin\AppData\Roaming\VPNPlus.exe
          "C:\Users\Admin\AppData\Roaming\VPNPlus.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4500
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1504
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:3956

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Synaptics\Synaptics.exe

      Filesize

      1.9MB

      MD5

      2fee446f1eefd868e785c8a95d3720f3

      SHA1

      20c436ebef64a8798d771aaf1caf26ba958ff979

      SHA256

      25cf545a806ad8c33e1eaaeb424d90645900824c1a9ab79c5274c61654efe6b4

      SHA512

      29add930c9f0b9c613c57997ee7a1c7d15be196d9d679aa0c8d3a528b34dd1f8356f1beb68bef6855d64bff84ee5e7a4ce6791893932bbb05ac653b930ed613e

    • C:\Users\Admin\AppData\Local\Temp\E8D75E00

      Filesize

      21KB

      MD5

      61a42b70a478dba8807c015dfc5840f7

      SHA1

      808b6d3bd961d299389537e43b7400e6b8589763

      SHA256

      78d41c7c4eb287614f9718caadfdc9190fee85e88c1354f1eaf85813e3efc437

      SHA512

      94915549fc77e145364800a4e9165c8ac47df0eb917b3fb4eef3275d440b9db693ab35063713ecd1dc9a11078fdc1609a36ba7658561e2ace6ca82f614de470c

    • C:\Users\Admin\AppData\Local\Temp\VPN Plus V2\._cache_VPN Plus.exe

      Filesize

      1.1MB

      MD5

      710ab55f4ef1bca71fc375eb5f8970bd

      SHA1

      bce86fc001249d537022c6e1a2ea3268432a1525

      SHA256

      2ed1553c925e60d69b36bc4f99eeecd0f266ff02efed4a0a49d9a31afaf3c5f2

      SHA512

      cf02b8b3f4628c2514d9a850c460ed452bca458988ce71d151877bc316bd8000aa0a5631c6ccb5f43aa5d83fbe5cd9826a65456e87fcdd7afcb2aef2cbca7cf7

    • C:\Users\Admin\AppData\Local\Temp\zenFtT9p.xlsm

      Filesize

      17KB

      MD5

      e566fc53051035e1e6fd0ed1823de0f9

      SHA1

      00bc96c48b98676ecd67e81a6f1d7754e4156044

      SHA256

      8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

      SHA512

      a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

    • C:\Users\Admin\AppData\Roaming\VPN Plus Config.exe

      Filesize

      293KB

      MD5

      810d350794a00247069a152538940195

      SHA1

      df7d2bac8066115056f6fa3c2fbf05991c961958

      SHA256

      047f91f56b6c03885d694d36a1b3cfaa211145c6093f66d2d13fa6aee15a0801

      SHA512

      20f20e6ff80da0232ff00af850e4a3c901cd44f84f6cf38c2c91f16fbaa15c726fee7b3aeceea2ef7c852f4edb2079c3f943a60c985910a9619e24d7b7927c24

    • C:\Users\Admin\AppData\Roaming\VPNPlus.exe

      Filesize

      444KB

      MD5

      f341dc884269172ef968d8fa6927275b

      SHA1

      5351fe61fd39b7704d9d63b1a36c44746536753d

      SHA256

      2d41af98b1f58fa4c8266629e6a8eec3a06970a4bd8132f722a3ad71457da4e6

      SHA512

      0c6933547a0f76b953a6679027e95f2d557c509ac459004baf2a2bf1bb9176d196eb1bea0ef38c6fe8a5b1ad2ecbf92e10542a2be25b563ab2af82f0bdfb1fde

    • memory/216-0-0x0000000002380000-0x0000000002381000-memory.dmp

      Filesize

      4KB

    • memory/216-131-0x0000000000400000-0x00000000005E7000-memory.dmp

      Filesize

      1.9MB

    • memory/1344-120-0x0000000000280000-0x00000000003AA000-memory.dmp

      Filesize

      1.2MB

    • memory/1344-118-0x00007FFFAEA13000-0x00007FFFAEA15000-memory.dmp

      Filesize

      8KB

    • memory/1504-284-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-283-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-285-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-221-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-222-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-220-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-223-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-219-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1504-227-0x00007FFF7F400000-0x00007FFF7F410000-memory.dmp

      Filesize

      64KB

    • memory/1504-228-0x00007FFF7F400000-0x00007FFF7F410000-memory.dmp

      Filesize

      64KB

    • memory/1504-286-0x00007FFF81A70000-0x00007FFF81A80000-memory.dmp

      Filesize

      64KB

    • memory/1952-287-0x0000000000400000-0x00000000005E7000-memory.dmp

      Filesize

      1.9MB

    • memory/1952-333-0x0000000000400000-0x00000000005E7000-memory.dmp

      Filesize

      1.9MB

    • memory/3556-205-0x00000000005B0000-0x0000000000624000-memory.dmp

      Filesize

      464KB

    • memory/3556-206-0x00000000054D0000-0x0000000005A74000-memory.dmp

      Filesize

      5.6MB

    • memory/3556-218-0x0000000004EE0000-0x0000000004EEA000-memory.dmp

      Filesize

      40KB

    • memory/3556-207-0x0000000004F20000-0x0000000004FB2000-memory.dmp

      Filesize

      584KB

    • memory/4648-150-0x0000000000EB0000-0x0000000000F00000-memory.dmp

      Filesize

      320KB

    • memory/4648-306-0x000000001C780000-0x000000001C7F6000-memory.dmp

      Filesize

      472KB

    • memory/4648-307-0x00000000017E0000-0x00000000017EC000-memory.dmp

      Filesize

      48KB

    • memory/4648-308-0x0000000001810000-0x000000000182E000-memory.dmp

      Filesize

      120KB