Analysis

  • max time kernel
    93s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15-05-2021 12:38

General

  • Target

    afb0ede0d0e4d75ade28702a3d23dac2f0feb34fc7c43579c5eed271b2e8ed46.dll

  • Size

    1.5MB

  • MD5

    c7a9ad3d3a7a8c050a378c6082b6447d

  • SHA1

    f35301e85d5d92ac6233c8e61d71a4fe7c3fe246

  • SHA256

    afb0ede0d0e4d75ade28702a3d23dac2f0feb34fc7c43579c5eed271b2e8ed46

  • SHA512

    937591251a8324cbd6094a3a8fcc38d0fe57be524be351a4986f16f0b880dfbd308e27b27277a5953e6ca78ddfe371229f1627c82d2bcbd51295bd72fe6ccb91

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\afb0ede0d0e4d75ade28702a3d23dac2f0feb34fc7c43579c5eed271b2e8ed46.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3912
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\afb0ede0d0e4d75ade28702a3d23dac2f0feb34fc7c43579c5eed271b2e8ed46.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4016
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:3656
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2848
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2672
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2672 CREDAT:82945 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4016 -s 684
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2868

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
    MD5

    a0a5a4d72ad62fd610b043c84033deaf

    SHA1

    aa5c3deaba3b479e004880b369f63f2b59b23b9a

    SHA256

    35d20d28885d84fef2a2e06125bf9626fbab13b99d1238a435a444a8db1cb9c6

    SHA512

    20dd0d4276e854bca2767bd4cf7f04068a23742ff33926a7ba5296d2b0a453d456f37662e443c4df2fc3027bbead658a8ca6f8be40a61c82e3d6085cf85b9243

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
    MD5

    62828ea49b0508d7ebe28b3eaf96d707

    SHA1

    6789dfdc1575f7f43b9609d4707c806c4404c94c

    SHA256

    c7a8757aa108a56870ce9197da34cecaede1e6f0bf4ed51c92d35d085a91d9d7

    SHA512

    514ee77a6c5082f9a09ca665c446deef7e5caf627936eb3518a956e0aa235fbbf169c1fcb7eb36ef74aad63ead1a3a098a3194310b2d1df014427dd0a549cb4e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\FPDL48K4.cookie
    MD5

    5d066d596bdfb2a6eb66d5becc7a4f16

    SHA1

    4eab95e1e511224beec6f13547eccde8e3086149

    SHA256

    9e2a86f3bde2f185afa04400550d0b8ea6845ec36631ae516aa5a688a5265314

    SHA512

    af26dcbaa101b07f560e55ef5c3053f38ccf75f5a69d45434854be9d0fdd7d215f71c07f75173f67de437af8b9b789da070c714e7fe9fdf25d657f4629ac7ada

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\VCRW6WP4.cookie
    MD5

    7146c14662f06a73ddceef4e21a1b537

    SHA1

    e196ce5933889ecba049b6f027eb85ef318e25bb

    SHA256

    ff10af00328d51023e4a8e6e5a85ae21f2529fe4b142f3cc11f464ace229b215

    SHA512

    3da1f92eeeeb8239595623f83f0d32272306d7388d9fe0828206928f5af209ea721ab7eaf314416980df84a09616fd41b9d8e8a0896da8eb8afd94ce2334ba56

  • C:\Windows\SysWOW64\rundll32Srv.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Windows\SysWOW64\rundll32Srv.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/220-128-0x0000000000000000-mapping.dmp
  • memory/2672-122-0x0000000000000000-mapping.dmp
  • memory/2672-125-0x00007FFB7FA40000-0x00007FFB7FAAB000-memory.dmp
    Filesize

    428KB

  • memory/2848-121-0x00000000001F0000-0x00000000001F1000-memory.dmp
    Filesize

    4KB

  • memory/2848-118-0x0000000000000000-mapping.dmp
  • memory/3656-124-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/3656-123-0x00000000001E0000-0x00000000001EF000-memory.dmp
    Filesize

    60KB

  • memory/3656-115-0x0000000000000000-mapping.dmp
  • memory/4016-114-0x0000000000000000-mapping.dmp