Analysis

  • max time kernel
    127s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-06-2022 08:05

General

  • Target

    ????????SP1.exe

  • Size

    2.2MB

  • MD5

    d9cf40b79a6cd5d19bd9b636cf985458

  • SHA1

    67aa166e25423854964d6e2ab6e99fc48fd67363

  • SHA256

    5505996b4df80a9ac17ff69b7d2650ad2d88ca0bf7cf4f7c1b7766fe20931203

  • SHA512

    972ae0b55a018937764fef71fd0cc946a20cb7ab531cc4042852e5125e74ac745250dc082c9c223ab9715994200c98bcde3b108499213fdf6a261ff63c827fe3

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 8 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 25 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\________SP1.exe
    "C:\Users\Admin\AppData\Local\Temp\________SP1.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Local\Temp\________SP1Srv.exe
      C:\Users\Admin\AppData\Local\Temp\________SP1Srv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:912
      • 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:1352
        • 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:944
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:944 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:560

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

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\Local\Temp\________SP1Srv.exe
    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\________SP1Srv.exe
    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Program Files (x86)\Microsoft\DesktopLayer.exe
    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Users\Admin\AppData\Local\Temp\________SP1Srv.exe
    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Users\Admin\AppData\Local\Temp\am.dll
    Filesize

    120KB

    MD5

    b4c2caaa15d4e505ad2858ab15eafb58

    SHA1

    a1c30a4d016f1c6bd3bf50e36767af8af166d59b

    SHA256

    93e03eadd330242f2394c15cd32857194e5b80f6300835ef77f8558ca70a2ef1

    SHA512

    09b5903a579685522a521cec3b6026ab0d7b9cff3099f032254dbd2b48fbbdd9a7411c0765049784c64f520d41916e681cae206a736b4fab1868f449e84b4bf2

  • \Windows\SysWOW64\ESPI11.dll
    Filesize

    120KB

    MD5

    b4c2caaa15d4e505ad2858ab15eafb58

    SHA1

    a1c30a4d016f1c6bd3bf50e36767af8af166d59b

    SHA256

    93e03eadd330242f2394c15cd32857194e5b80f6300835ef77f8558ca70a2ef1

    SHA512

    09b5903a579685522a521cec3b6026ab0d7b9cff3099f032254dbd2b48fbbdd9a7411c0765049784c64f520d41916e681cae206a736b4fab1868f449e84b4bf2

  • memory/912-57-0x0000000000000000-mapping.dmp
  • memory/912-64-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1000-54-0x0000000075F21000-0x0000000075F23000-memory.dmp
    Filesize

    8KB

  • memory/1000-55-0x0000000000400000-0x0000000000690000-memory.dmp
    Filesize

    2.6MB

  • memory/1000-70-0x0000000000400000-0x0000000000690000-memory.dmp
    Filesize

    2.6MB

  • memory/1352-62-0x0000000000000000-mapping.dmp
  • memory/1352-67-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB