Analysis

  • max time kernel
    106s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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 6 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 11 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
    • Modifies registry class
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Users\Admin\AppData\Local\Temp\________SP1Srv.exe
      C:\Users\Admin\AppData\Local\Temp\________SP1Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1440
      • 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:1864
        • 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:3696
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3696 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1852
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:5100

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
    Filesize

    471B

    MD5

    ac894ce763ddb15e950560bb84302782

    SHA1

    f722dcbc48ef1f2030e58b5e728c74769402562f

    SHA256

    76e0bc1b2f3a2fb7d536b45a919c9c56eb398ce21e3e999076535529bac97bd5

    SHA512

    5ea5d7efc228bf1fe5b87cc9f2564f691034dc6a8f3957cf96f3eb7e59b522ac28cea1664290c3f4f3a21feb41397e44727f7a3b858527bc17088a9e6e41fadb

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

    404B

    MD5

    6da6b65df418cee953d13e0101be0892

    SHA1

    d0854f914c4b9be09d9b1a5053fabdc8a6339e4a

    SHA256

    c7b9a096ac31eb53e12621c6133f8fe606bb0f0bbc8964683d7f6b73227c2c50

    SHA512

    3ea6c6d0475d122f6711f0334b4fa9d55aa7b3ff61c412c8e48fdb415866cb792a61573ec4160306a67702eb173e8537fd79c02694904774c0b5e63d9287d4c2

  • 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

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

    120KB

    MD5

    b4c2caaa15d4e505ad2858ab15eafb58

    SHA1

    a1c30a4d016f1c6bd3bf50e36767af8af166d59b

    SHA256

    93e03eadd330242f2394c15cd32857194e5b80f6300835ef77f8558ca70a2ef1

    SHA512

    09b5903a579685522a521cec3b6026ab0d7b9cff3099f032254dbd2b48fbbdd9a7411c0765049784c64f520d41916e681cae206a736b4fab1868f449e84b4bf2

  • C:\Windows\SysWOW64\ESPI11.dll
    Filesize

    120KB

    MD5

    b4c2caaa15d4e505ad2858ab15eafb58

    SHA1

    a1c30a4d016f1c6bd3bf50e36767af8af166d59b

    SHA256

    93e03eadd330242f2394c15cd32857194e5b80f6300835ef77f8558ca70a2ef1

    SHA512

    09b5903a579685522a521cec3b6026ab0d7b9cff3099f032254dbd2b48fbbdd9a7411c0765049784c64f520d41916e681cae206a736b4fab1868f449e84b4bf2

  • memory/1440-136-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1440-131-0x0000000000000000-mapping.dmp
  • memory/1864-134-0x0000000000000000-mapping.dmp
  • memory/1864-138-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/5056-141-0x0000000000400000-0x0000000000690000-memory.dmp
    Filesize

    2.6MB

  • memory/5056-130-0x0000000000400000-0x0000000000690000-memory.dmp
    Filesize

    2.6MB