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Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2022, 20:56

General

  • Target

    8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll

  • Size

    556KB

  • MD5

    05aac05edca095ed3b096e8ccaa22d0a

  • SHA1

    64e69952c8dadefbb77e1373c64f02467a18d527

  • SHA256

    8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc

  • SHA512

    ffcd62065a33b6f6d7e8156c023c81dd23480aec3509f787aa69b8d5a5314dc3add7257e886e0148e5f40518b779fcf37c78b87041aed0ff46ebd6e0fc9c0798

  • SSDEEP

    12288:5hpUrEIZJqr1AkBWwNa5R0EYl795/amaX3QXaPKUoe4VOxj96lN:5/jG01NHXaP94T

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 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:536
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 236
        3⤵
        • Program crash
        PID:1000

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    94KB

    MD5

    8b5f2036288762602f2916929b1ab9d8

    SHA1

    351a0157960c3b009a9814a6e8b7f788ba798988

    SHA256

    55751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951

    SHA512

    41a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1

  • \Users\Admin\AppData\Local\Temp\~TM281.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • \Users\Admin\AppData\Local\Temp\~TM30F.tmp

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    94KB

    MD5

    8b5f2036288762602f2916929b1ab9d8

    SHA1

    351a0157960c3b009a9814a6e8b7f788ba798988

    SHA256

    55751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951

    SHA512

    41a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    94KB

    MD5

    8b5f2036288762602f2916929b1ab9d8

    SHA1

    351a0157960c3b009a9814a6e8b7f788ba798988

    SHA256

    55751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951

    SHA512

    41a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1

  • memory/536-67-0x0000000010000000-0x000000001008C000-memory.dmp

    Filesize

    560KB

  • memory/536-55-0x0000000076871000-0x0000000076873000-memory.dmp

    Filesize

    8KB

  • memory/536-68-0x00000000008D0000-0x0000000000914000-memory.dmp

    Filesize

    272KB

  • memory/536-69-0x00000000008D0000-0x0000000000914000-memory.dmp

    Filesize

    272KB

  • memory/908-64-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/908-66-0x0000000077E80000-0x0000000078000000-memory.dmp

    Filesize

    1.5MB

  • memory/908-65-0x0000000001B70000-0x0000000001BB4000-memory.dmp

    Filesize

    272KB