Analysis

  • max time kernel
    143s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    16-06-2024 23:21

General

  • Target

    85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5.exe

  • Size

    199KB

  • MD5

    e9992c2a025407bc6620f7072c5f5208

  • SHA1

    0b2a7bd44a0eb46974cee4eb5b11ea52414ed794

  • SHA256

    85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5

  • SHA512

    419c8dffa745ad64c037fd265558bba0c94c63078b5477b58520273e71644958df82cf7dd6d5c210d618a7ada1d1a8582a7598b954aabba648b0208761d59556

  • SSDEEP

    3072:a74MyJjjlLzVjN50BdQqlYgp72xzbuawaGO0OJw8KWs6IgVLE7QkfIA:awj30dlZ+GVaRVLE7QkfI

Malware Config

Signatures

  • Detects executables containing base64 encoded User Agent 4 IoCs
  • Blocklisted process makes network request 7 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5.exe
    "C:\Users\Admin\AppData\Local\Temp\85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uxdntjqwx.exe "C:\Users\Admin\AppData\Local\Temp\85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:3044
      • C:\Users\Admin\AppData\Local\Temp\uxdntjqwx.exe
        C:\Users\Admin\AppData\Local\Temp\\uxdntjqwx.exe "C:\Users\Admin\AppData\Local\Temp\85116b9534fe3ff0aace7f279b8f431c65068dc3dc3516beb3842253e33724d5.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2864
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\ptvdu\njxtq.dll",method C:\Users\Admin\AppData\Local\Temp\uxdntjqwx.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\ptvdu\njxtq.dll

    Filesize

    148KB

    MD5

    16574eec8585aeccf3356cf4c8375931

    SHA1

    2ce97e355ef5e3f20e3188782e317e7113b895e3

    SHA256

    f663d5c8eddb791b948e3e50c977d8d626bb188ed6c8d90edebf32cee7350115

    SHA512

    c8de53db42293f07a14d9db025fcc143a5e5635063823ff0ef92b679efbc46c228eedd0fc8443a5838a1eb7a3f3c439162819c1d1e2111eec4c88d6d269678da

  • \Users\Admin\AppData\Local\Temp\uxdntjqwx.exe

    Filesize

    199KB

    MD5

    3d776d31259f5dd9d268a6eaa85fa393

    SHA1

    0fe77f65fe574d2ead7c7145f73987c7f95867da

    SHA256

    68a6d9d805b326cc3f8b786407b2aa3a00a7cabd00adfd05798d9b6f872b5de9

    SHA512

    134350208326edc4dae19dd7123d6a47a4ae342802e9fce0efee1216a7bb2f0397a7982e1e5eaf634abfdcfe324d06641bf496f900cd978fcee0bc4ce0345776

  • memory/1688-0-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1688-3-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2864-10-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/3064-16-0x0000000010000000-0x0000000010056000-memory.dmp

    Filesize

    344KB

  • memory/3064-21-0x0000000010050000-0x0000000010051000-memory.dmp

    Filesize

    4KB

  • memory/3064-20-0x0000000010000000-0x0000000010056000-memory.dmp

    Filesize

    344KB

  • memory/3064-18-0x0000000010000000-0x0000000010056000-memory.dmp

    Filesize

    344KB

  • memory/3064-22-0x0000000010000000-0x0000000010056000-memory.dmp

    Filesize

    344KB