Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 11:47

General

  • Target

    cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5.exe

  • Size

    206KB

  • MD5

    b7cd63d1002cb1555565da0b41f1642d

  • SHA1

    764558f3bfd0d4783fca8edabf5fbc605585d612

  • SHA256

    cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5

  • SHA512

    457b4a0d084af80c45623db7921b5ee37984090d18b4f1174d7c7b7842c111dd142e2b57c8aec7a8c341c27be7e33233e68bc69674099d23244f85b129ac8c97

  • SSDEEP

    3072:6OFIJ3oVdYUiK7+YoPgWVJooHAUo+V2KP9JMjew9gt3qf:6cIhoXH+MWDoLmLVJIr9o

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5.exe
    "C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5.exe"
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5Srv.exe
      C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4768
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4324
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:840
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:840 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2264

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    a42abb21be3940a88a73771b18ed0f35

    SHA1

    de12f2f619852ef135ee726614c43c2033ec5743

    SHA256

    edaf1fb1f6ca2a0caf5f4d85b3f13507bd5df4971fa9ea8a6e08c1227f1ec667

    SHA512

    c1f775deb2bcb2e0c48ed74dec1cd95f34690ca16d6465175d52d60ae45e746201cc608a58b6f8f080b7e6a7893993b61093c7d9ff63fa735ebaba61ddd0ebf7

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    434B

    MD5

    0982d7316d222a8ee96451975d890d20

    SHA1

    c2018200fa38bd4a35db90af74d8ed4f24524671

    SHA256

    e4a2fea2ec64e4b25c8944ca1dd3669ced089e44a28372c5980726f7f43da5ed

    SHA512

    13505b0753c3fbd44d7138b226cdfcfb645b2218a1c845ed93826a34022cb039bb77751be722f1fba5357ab609c7455e81c2909a04a0e8b5b92891308a7a18c7

  • C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\cfe5349322f19a82ab07266990abb610c596a7fda1b127a2b13fede5e4d208f5Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/4324-135-0x0000000000000000-mapping.dmp

  • memory/4324-140-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4324-141-0x0000000000550000-0x000000000055F000-memory.dmp

    Filesize

    60KB

  • memory/4768-138-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4768-132-0x0000000000000000-mapping.dmp

  • memory/4908-142-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4908-139-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB