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Analysis

  • max time kernel
    263s
  • max time network
    354s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 14:30

General

  • Target

    859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4.exe

  • Size

    691KB

  • MD5

    cc46071bd7293fd5872d09c3891d92b8

  • SHA1

    6250ed4be651746a52a7ccdda6d47ab20db4128e

  • SHA256

    859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

  • SHA512

    ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

  • SSDEEP

    1536:LbnRuEbswtfKxehJN/Ba6gZblpuiv0SvaxyXaCbZZC4+06gjIrCTRknanwujxsfS:LbnRuEYcg+mliy5bdH6MI2TqnOY

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 14 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 4 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Disables taskbar notifications via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 23 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 15 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 40 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs
  • System policy modification 1 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4.exe
    "C:\Users\Admin\AppData\Local\Temp\859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:472
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:1484
      • C:\Users\Admin\AppData\Local\Temp\859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4.exe
        2⤵
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1368
        • C:\Users\Admin\E696D64614\winlogon.exe
          "C:\Users\Admin\E696D64614\winlogon.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:904
            • C:\Users\Admin\E696D64614\winlogon.exe
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1092
              • C:\Users\Admin\E696D64614\winlogon.exe
                "C:\Users\Admin\E696D64614\winlogon.exe"
                5⤵
                • Modifies firewall policy service
                • Modifies security service
                • Modifies visibility of file extensions in Explorer
                • Modifies visiblity of hidden/system files in Explorer
                • UAC bypass
                • Windows security bypass
                • Disables RegEdit via registry modification
                • Drops file in Drivers directory
                • Executes dropped EXE
                • Sets file execution options in registry
                • Drops startup file
                • Windows security modification
                • Adds Run key to start application
                • Checks whether UAC is enabled
                • Modifies Control Panel
                • Modifies Internet Explorer settings
                • Modifies Internet Explorer start page
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • System policy modification
                PID:1836
      • C:\Windows\system32\wbem\unsecapp.exe
        C:\Windows\system32\wbem\unsecapp.exe -Embedding
        1⤵
          PID:1164
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1608 CREDAT:275457 /prefetch:2
            2⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1352

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          61KB

          MD5

          fc4666cbca561e864e7fdf883a9e6661

          SHA1

          2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

          SHA256

          10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

          SHA512

          c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          dbe3257a546f4bfb13af6def94803704

          SHA1

          1f09430afabe24113bbd2879bc8e5472b1679e23

          SHA256

          2633b3c92fd41d2408a22f1a7cc834690f779dc8302bed607baeb4797c0bd9be

          SHA512

          6aabc85458f0bcbff3987e3fcbf14da8d207527b36db6e9f8447c75f4fa3be25e0235611c802f2cf2cb92dc43d54c61de5ff0ee013e079a77d7e514f64ddcb95

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          53d70526e3e20a66291bd191cca1e6e1

          SHA1

          9a6cc31668f2304d9143a02dd99a9ba0309553dc

          SHA256

          2cf906b6e441b25c3c34d9dee020be3cfd5c7f3d093befce48e7a6096ab06e0f

          SHA512

          e727bf7e3b6f193e807b715f2a5d1a850acf38bbb6aace113ea4663baf21e4e2b335124d38ab4f39a80cd577174189dd8c0f3ea595d8faff4d7f8c89f31dfc7e

        • C:\Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • C:\Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • C:\Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • C:\Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • \Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • \Users\Admin\E696D64614\winlogon.exe

          Filesize

          691KB

          MD5

          cc46071bd7293fd5872d09c3891d92b8

          SHA1

          6250ed4be651746a52a7ccdda6d47ab20db4128e

          SHA256

          859e551058a3035f32e79adf5d217aca6df23cdec4b7498bff491a1d351626a4

          SHA512

          ae5736f5435a140827d1e1448e9241c2f50527ab1522b49036a2012f2e669a6708c723d9d789b5bf1d73ff2c9a7d3e7c88ba888dde04b495f53e8d96cab66376

        • memory/472-54-0x00000000000A0000-0x00000000000DB000-memory.dmp

          Filesize

          236KB

        • memory/472-58-0x00000000000A0000-0x00000000000DB000-memory.dmp

          Filesize

          236KB

        • memory/1092-94-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1092-96-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1092-93-0x0000000000DC0000-0x0000000000DFB000-memory.dmp

          Filesize

          236KB

        • memory/1368-66-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

          Filesize

          8KB

        • memory/1368-65-0x00000000000A0000-0x00000000000DB000-memory.dmp

          Filesize

          236KB

        • memory/1368-75-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1368-64-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1368-61-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1368-60-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1368-56-0x0000000000400000-0x000000000041C000-memory.dmp

          Filesize

          112KB

        • memory/1836-89-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/1836-88-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/1836-95-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/1836-97-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/1836-98-0x0000000004180000-0x00000000051E2000-memory.dmp

          Filesize

          16.4MB

        • memory/1836-83-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/2016-78-0x0000000000DC0000-0x0000000000DFB000-memory.dmp

          Filesize

          236KB