Analysis

  • max time kernel
    122s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14-01-2024 02:38

General

  • Target

    57698b721d5852a5b7fef0f428d20dbf.exe

  • Size

    52KB

  • MD5

    57698b721d5852a5b7fef0f428d20dbf

  • SHA1

    31d16e5c2c327ba4f0a2336427ab70d465535ba7

  • SHA256

    bbc1b383118409c054202e2995b749a4b85e224e78782bedbbd81b94845dc094

  • SHA512

    634c7fda1d6483c46ed9e257484aa9a6c24ef1e39a0689267f91b407b9a842ee595718f7ab181a86f4a494f4d15149bba84174ac11383649e71d8d6fe6080084

  • SSDEEP

    768:QGxG8ftqr1zfinbAyUD1IyobuV2YlyW4Xw9cxK9uN3UADLzPUwQreLQZ:Qcrftqr1zqpURIy9CWPcxx/vz87eLQZ

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.exe
    "C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\kernel32.exe
      "C:\Users\Admin\AppData\Local\Temp\kernel32.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2864
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.doc"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1308
      • C:\Users\Admin\AppData\Local\Temp\abs.exe
        "C:\Users\Admin\AppData\Local\Temp\abs.exe" C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.exe C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.doc
        2⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2832
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:420
      • C:\Windows\SysWOW64\kernel32.exe
        C:\Windows\SysWOW64\kernel32.exe -k netsvcs
        1⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\57698b721d5852a5b7fef0f428d20dbf.doc

        Filesize

        21KB

        MD5

        ca7c25d8ede0ef67dbbbd0a52d02c50f

        SHA1

        c8428f311b0331b8a8f9bc656eb042cd499835cf

        SHA256

        65b51f79e7a9be4077b27c3fc1c54897ab1424a6f9ac8aac31fd398b786a912d

        SHA512

        f7cb4c5210d531c056171e397d780276b0223c7858d39b79f13513395afe86a974587789db13f172dbf926ab0ed5263387e96d3ae727e7653a0f3a0758fe8b96

      • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

        Filesize

        20KB

        MD5

        9f0baa03e554dd3f0ca0f878d05c0243

        SHA1

        f7af23e2f82328f43b01d1d8c9b44c7fc03be655

        SHA256

        34a5deac9947d96b959b865d4d79add6e0c2e79ab3ad771ae753d43133712365

        SHA512

        77e83438b5946231f4d397041136f8e9fb9c34585e6dd7ec9e71fafb6221ada0efd9350608ab93ce62cacddc6659bdb5ca5d1b1b9215979d358a9a39cc2b7e7c

      • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • C:\Windows\SysWOW64\kernel32.dfg

        Filesize

        46B

        MD5

        180d4525a54f6e370785134421bfc6c5

        SHA1

        e183da9ec06f5a4eddb5988437a9c0a0746ce4fa

        SHA256

        35f559607a554f4b62529ca15116933b956a9d8f320cc1b44ad39b9f0f856930

        SHA512

        61353a378188b7aee89cfefabd33b21e5f54bfc78c07f177ec0fa0dde75feab44895ed8c4e1290139e41bc396950c499795dc70526a9aea2ed3f86be3bc42455

      • \Users\Admin\AppData\Local\Temp\abs.exe

        Filesize

        52KB

        MD5

        57698b721d5852a5b7fef0f428d20dbf

        SHA1

        31d16e5c2c327ba4f0a2336427ab70d465535ba7

        SHA256

        bbc1b383118409c054202e2995b749a4b85e224e78782bedbbd81b94845dc094

        SHA512

        634c7fda1d6483c46ed9e257484aa9a6c24ef1e39a0689267f91b407b9a842ee595718f7ab181a86f4a494f4d15149bba84174ac11383649e71d8d6fe6080084

      • \Users\Admin\AppData\Local\Temp\kernel32.exe

        Filesize

        14KB

        MD5

        e2f42a86d702af3b5c94b5bdaacb3625

        SHA1

        670c18c79380a8270dfbdb5cce5b60dbd56774de

        SHA256

        cf08bd8070f865943bfcb55b21cbe79d26706427112e6dccfbd01a03457c0d8d

        SHA512

        770074c537015a5fc3ab3e38a2c96604dde105dfce08fae0487d5eb64083035d6b3c6c0c5ad4e3c7f3eda882a48dbbac40aca00b5bdd5f3e0a06801c7b1f7179

      • memory/420-54-0x0000000000140000-0x0000000000141000-memory.dmp

        Filesize

        4KB

      • memory/2552-56-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/2552-36-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/2716-0-0x0000000000400000-0x000000000040D000-memory.dmp

        Filesize

        52KB

      • memory/2716-23-0x0000000000400000-0x000000000040D000-memory.dmp

        Filesize

        52KB

      • memory/2716-12-0x0000000002610000-0x0000000002649000-memory.dmp

        Filesize

        228KB

      • memory/2832-26-0x0000000000400000-0x000000000040D000-memory.dmp

        Filesize

        52KB

      • memory/2832-24-0x0000000000400000-0x000000000040D000-memory.dmp

        Filesize

        52KB

      • memory/2856-14-0x000000002FE01000-0x000000002FE02000-memory.dmp

        Filesize

        4KB

      • memory/2856-28-0x000000006F5FD000-0x000000006F608000-memory.dmp

        Filesize

        44KB

      • memory/2856-58-0x000000006F5FD000-0x000000006F608000-memory.dmp

        Filesize

        44KB

      • memory/2856-27-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2856-73-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2864-52-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/2864-13-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB