Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 20:07

General

  • Target

    1f6a5564252c6c0bc43ed68e3d07a41eabfea21d4868aadd44891937f8f3604d.dll

  • Size

    699KB

  • MD5

    6709cc3bb411041f94ef37893a42c75d

  • SHA1

    c80cf20de826434d709f524032c5f8287a3a111a

  • SHA256

    1f6a5564252c6c0bc43ed68e3d07a41eabfea21d4868aadd44891937f8f3604d

  • SHA512

    dee11a33e5661334f263a4acdabcf52a8333e27dbe55b8fb567cbaf4532a8afe22749b04003610f7db4e6f6d97a7af93a0e3d14616bd1bb1db5c81ae1933b38a

  • SSDEEP

    12288:3zb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwP20:3zb1MlCKUQyUmjtczu6Prs9pgWoopoo7

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f6a5564252c6c0bc43ed68e3d07a41eabfea21d4868aadd44891937f8f3604d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f6a5564252c6c0bc43ed68e3d07a41eabfea21d4868aadd44891937f8f3604d.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 88
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1004

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • \Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • \Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • \Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • \Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • \Windows\SysWOW64\rundll32Srv.exe

    Filesize

    42KB

    MD5

    49073a31e6bf259b1a33d15808d4cba9

    SHA1

    fb149303da7ee1da5b36b6e27f7c9d2244a6b983

    SHA256

    16a36360e050860a4c6e37d69fbab941e3c93a1cd9ab8d17837029b3e7110ffa

    SHA512

    9a369bc1cfcaeaf39919a90c2ef5ad01fa31a555dc05ed91065ee373212e1fe50d6ca43d8ec37f147206cdf366e6c5f473d7fb5545b5e6c46c907d7e1d4af38d

  • memory/1920-67-0x0000000000400000-0x0000000000434000-memory.dmp

    Filesize

    208KB

  • memory/1932-55-0x0000000076181000-0x0000000076183000-memory.dmp

    Filesize

    8KB

  • memory/1932-64-0x0000000005000000-0x00000000050B4000-memory.dmp

    Filesize

    720KB

  • memory/1932-66-0x00000000001E0000-0x0000000000214000-memory.dmp

    Filesize

    208KB

  • memory/1932-65-0x00000000001E0000-0x0000000000214000-memory.dmp

    Filesize

    208KB