Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2022 23:11

General

  • Target

    7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll

  • Size

    453KB

  • MD5

    915212b329545e42dcbb4aae6458ef10

  • SHA1

    0880ba34642d03d652371c0eaec7010feb3b1a2c

  • SHA256

    7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f

  • SHA512

    6646789f92c0fa91ac5a52ce1cc2c4a67dd8e1abc78983cf6ac76a7330251737e5f6e598402f7f66726e6a0f5a907e2e6026fbfe282ef93efa3b1b16e34e3564

  • SSDEEP

    12288:h6qIr+648pT2vo7/lK/3uY8aWKG4MY3gxU81C/yxRVoXdsgd8kJyo39koTJ2vpu4:hdIr+646u8R3FKyo36QJO6A5U9Hg

Malware Config

Signatures

  • Ramnit

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

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

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1848
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 180
          4⤵
          • Program crash
          PID:2016

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    106KB

    MD5

    dcd2cafa72c9d5bd898b636a18133d3c

    SHA1

    b55e85453de9254cbf4c21c0de92d82c6deefccb

    SHA256

    936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

    SHA512

    59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

  • \Users\Admin\AppData\Local\Temp\~TM3B9.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • \Users\Admin\AppData\Local\Temp\~TM427.tmp

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    106KB

    MD5

    dcd2cafa72c9d5bd898b636a18133d3c

    SHA1

    b55e85453de9254cbf4c21c0de92d82c6deefccb

    SHA256

    936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

    SHA512

    59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    106KB

    MD5

    dcd2cafa72c9d5bd898b636a18133d3c

    SHA1

    b55e85453de9254cbf4c21c0de92d82c6deefccb

    SHA256

    936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

    SHA512

    59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

  • memory/1848-64-0x0000000074ED0000-0x0000000074EE3000-memory.dmp

    Filesize

    76KB

  • memory/1848-58-0x0000000074E40000-0x0000000074ECB000-memory.dmp

    Filesize

    556KB

  • memory/1848-57-0x0000000074E40000-0x0000000074ECB000-memory.dmp

    Filesize

    556KB

  • memory/1848-54-0x0000000000000000-mapping.dmp

  • memory/1848-56-0x0000000074ED0000-0x0000000074F5B000-memory.dmp

    Filesize

    556KB

  • memory/1848-55-0x0000000075241000-0x0000000075243000-memory.dmp

    Filesize

    8KB

  • memory/1960-61-0x0000000000000000-mapping.dmp

  • memory/1960-67-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/1960-68-0x0000000000220000-0x000000000024A000-memory.dmp

    Filesize

    168KB

  • memory/1960-69-0x00000000777C0000-0x0000000077940000-memory.dmp

    Filesize

    1.5MB