Analysis

  • max time kernel
    108s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 21:31

General

  • Target

    02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5a.exe

  • Size

    2.4MB

  • MD5

    9a95d4b86ce7a4e1db29238b6ee09e07

  • SHA1

    2f88a5d77fd038da83ad1eca661639ae0199484e

  • SHA256

    02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5a

  • SHA512

    3d44adac646b41200242b66772d3def18f3a2695fa8d26ec59bcb465911bbe0f95905e889d55272155a712aafa922c65d0a66a423dffe8fdd708631c012728a5

  • SSDEEP

    49152:Wym+5BR+UwyfyD2phLtaAGcoaNKIayOzRku/o3+/o8chJGDr:VbZDLQA8AONkCt/V4JQr

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 5 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 4 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\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5a.exe
    "C:\Users\Admin\AppData\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5aSrv.exe
      C:\Users\Admin\AppData\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5aSrv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1952
      • 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:1744
        • 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:1136
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1136 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:468

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\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5aSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5aSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\76QHCRRX.txt

    Filesize

    606B

    MD5

    c33934335e12e93d57c63fca0c6a89c2

    SHA1

    a764828eedb9c4559ea3a2b828e07608c326c795

    SHA256

    db2d374a7cef952ab31ca6140b46d0865733202f004f7aa0885deaf06aa78e1e

    SHA512

    9f3f5ad44c3913c410a50cb2f77a5ad400a18513d1d29e309d102995ac2e062f4f2ab2a7eba4931dc4b6b6d92b7b25e3b6ed0d8594e275cd76922654d79a4e53

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

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Users\Admin\AppData\Local\Temp\02d32b5138dd1d7576fe4e7696ebcc3a6f007e8c478db065bf4372d9f55a0b5aSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Users\Admin\AppData\Local\Temp\nsd55B0.tmp\ButtonLinker.dll

    Filesize

    7KB

    MD5

    dd85ac7d85c92dd0e3cc17dfd4890f54

    SHA1

    a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

    SHA256

    27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

    SHA512

    e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

  • \Users\Admin\AppData\Local\Temp\nsd55B0.tmp\System.dll

    Filesize

    67KB

    MD5

    8fef2ddc02a88527acf5f875aa79590a

    SHA1

    b3ebe53a0037789c155992eee0547de1a76712b9

    SHA256

    5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

    SHA512

    7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

  • \Users\Admin\AppData\Local\Temp\nsd55B0.tmp\System.dll

    Filesize

    67KB

    MD5

    8fef2ddc02a88527acf5f875aa79590a

    SHA1

    b3ebe53a0037789c155992eee0547de1a76712b9

    SHA256

    5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

    SHA512

    7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

  • memory/1744-63-0x0000000000000000-mapping.dmp

  • memory/1744-68-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1952-65-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1952-57-0x0000000000000000-mapping.dmp

  • memory/1976-54-0x00000000754E1000-0x00000000754E3000-memory.dmp

    Filesize

    8KB

  • memory/1976-70-0x0000000010000000-0x0000000010015000-memory.dmp

    Filesize

    84KB