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Analysis

  • max time kernel
    262s
  • max time network
    343s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 08:01

General

  • Target

    190449ad219a48edb745d9dc8a51ba74792509f197fdaf992a50fc89e69592b0.dll

  • Size

    136KB

  • MD5

    e9758803fffe11d463e47944a3eedbf0

  • SHA1

    9abb72331090750fd3e456ac2204cf1a7b481490

  • SHA256

    190449ad219a48edb745d9dc8a51ba74792509f197fdaf992a50fc89e69592b0

  • SHA512

    29cc649a1a93221002c1f81a011022208e79a0ebf8ab775a2467d276b7709636fe0e8388d41bc017a62ba7c07658d98125fe304b1038e703b895e1dfc998121a

  • SSDEEP

    3072:z3BWcSZI1mAVBEqVeFYhfA1rxTp47iQ21ejVlT:z3BWcj1mAjE/FYhfA3u7i310Vl

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 54 IoCs
  • Modifies registry class 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\190449ad219a48edb745d9dc8a51ba74792509f197fdaf992a50fc89e69592b0.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:588
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\190449ad219a48edb745d9dc8a51ba74792509f197fdaf992a50fc89e69592b0.dll
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:592
        • 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:1560
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1560 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1848
        • 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:360
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:360 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1096

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{93A00761-70B4-11ED-9DAC-4ED4A804E0FC}.dat

    Filesize

    3KB

    MD5

    521857ea2e808a91670ae8c99f7bfceb

    SHA1

    dacc2fbdc6554844e1e9152b21f3d57104e9306a

    SHA256

    03cd2bf9a24921bd0991c81e26d65be209c9dba5a21f77a71cdf7faa152a91f0

    SHA512

    0c947d952343a55a44f4f53705be40805d4b69bf6ae738744f154749773a21dd4c311d70f56d0795a3725f860112af5ca004dfee025d82d6eab8478d229069c9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\M1DDF49A.txt

    Filesize

    539B

    MD5

    241ab7dc074e81ca1adbb68ebb7fc6e2

    SHA1

    ce0979b1e3124e781912dbb8a93e6e6a30df03e2

    SHA256

    c50f852403129e2bf5e9b0591e72e6933e6a9370fb2882b14486d7b6542067f3

    SHA512

    a1244c9d1b9473af1c2a9a768ee238bdc729f2d8fa94334705b63fc0909c7f4fee57fa59d93bbb0a07fde150a23ad82ee52334e32e81b8503cb617cc370af5d0

  • C:\Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    99KB

    MD5

    f3873258a4258a6761dc54d47463182f

    SHA1

    fbbf8bca739ca4e9745e5224662b33b437a52461

    SHA256

    63b02a3e8e7e049d1f29cd4cd79fe5c8905754da6c023df72aa5cca351d0d5c5

    SHA512

    eec16bb41fd05d9acd5d2b17eb5218057c3cd97cd706e0782a64eb2c32f8a57f1206fe0268be7f37a9f1c3f7b8eb09767cf2724951eaee4be03c4d509d4b3dd4

  • \Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    99KB

    MD5

    f3873258a4258a6761dc54d47463182f

    SHA1

    fbbf8bca739ca4e9745e5224662b33b437a52461

    SHA256

    63b02a3e8e7e049d1f29cd4cd79fe5c8905754da6c023df72aa5cca351d0d5c5

    SHA512

    eec16bb41fd05d9acd5d2b17eb5218057c3cd97cd706e0782a64eb2c32f8a57f1206fe0268be7f37a9f1c3f7b8eb09767cf2724951eaee4be03c4d509d4b3dd4

  • \Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    99KB

    MD5

    f3873258a4258a6761dc54d47463182f

    SHA1

    fbbf8bca739ca4e9745e5224662b33b437a52461

    SHA256

    63b02a3e8e7e049d1f29cd4cd79fe5c8905754da6c023df72aa5cca351d0d5c5

    SHA512

    eec16bb41fd05d9acd5d2b17eb5218057c3cd97cd706e0782a64eb2c32f8a57f1206fe0268be7f37a9f1c3f7b8eb09767cf2724951eaee4be03c4d509d4b3dd4

  • memory/588-54-0x000007FEFB561000-0x000007FEFB563000-memory.dmp

    Filesize

    8KB

  • memory/592-61-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/592-63-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/768-56-0x0000000075441000-0x0000000075443000-memory.dmp

    Filesize

    8KB