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Analysis

  • max time kernel
    104s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 01:52

General

  • Target

    d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll

  • Size

    156KB

  • MD5

    7f82e8c29399ef847e31b18c7ab16c40

  • SHA1

    3548b8dbc63ae79caf86cbfee32b85dfca04fd85

  • SHA256

    d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb

  • SHA512

    1628907a5f695b76b55addd94c85b229ebbe8e699febb05d1bb39e2d71a82875f2ee5c279a8c40a3cdec08668e5d32126f8cc12e15ec9f8a924c1e77174e7136

  • SSDEEP

    3072:+vvtPYAmcGFdDVWhoCjawGfHnM1gW21LUjqQFqWWoOt05/:QvZYHqhokawUnM+X9qdFqWWz0

Malware Config

Signatures

  • Ramnit

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

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

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\d25b088ecad173defdc14a3ef00db616bc5f286356ef87b757d758c859ca5feb.dll
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1188
      • C:\Windows\SysWOW64\regsvr32Srv.exe
        C:\Windows\SysWOW64\regsvr32Srv.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:1780
        • 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:1936
          • 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:756
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:756 CREDAT:275457 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1088

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

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

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\CMV3JU84.txt

    Filesize

    608B

    MD5

    327ba54a3af5b4f199e283eedc510549

    SHA1

    e29eb6190505ec237762e98bbe82857286ab7871

    SHA256

    a8476aaa6c2da6552fce139b12d929256a45c10464667bbd925f6873c6a6fcc9

    SHA512

    81d2592f620d59d4cb04ce2518cda2f130e409f5c0b31de6f65c4e131874babd97cebaa5f2d8e9599099af5e4fe4ff5eb4a1cda3bc0141aa70c828f8fc404c8f

  • C:\Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

  • C:\Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

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

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

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

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

  • \Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

  • \Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    50KB

    MD5

    f8881fe1811f65a6693c585856177e23

    SHA1

    d23b0070d867ff43d9575a6a5deb895a72f33a4f

    SHA256

    133665cba8e79ae696dbd97d8e95af26722e088c263c841e43ce1d2527a9c557

    SHA512

    3cdae7158697c561c8180dd1c68f71d133b666d8a073549228830f0ca5ea87d6d339c35996a2f646d49980ac4a123347773f7dd68b801a1091ebbaa1f2ac4c38

  • memory/1188-56-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

    Filesize

    8KB

  • memory/1724-54-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp

    Filesize

    8KB

  • memory/1780-69-0x0000000000260000-0x000000000026A000-memory.dmp

    Filesize

    40KB

  • memory/1780-67-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/1936-71-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB