Analysis

  • max time kernel
    165s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 06:50

General

  • Target

    f98c438be981cf04775be0aaede2491a97d7209323426e6e38dbfbcf067bf20c.exe

  • Size

    255KB

  • MD5

    959659d0dad9d478b5e9300adf841e94

  • SHA1

    30821776c716ec7506f0d8951c5a782a601eef9d

  • SHA256

    f98c438be981cf04775be0aaede2491a97d7209323426e6e38dbfbcf067bf20c

  • SHA512

    603a1c6060882c44870e2122594ec510f31446679aae09c4158bad2a156b537473cf0fd7df3f66c0d21d9cddb2ecc9aee456f7381437c843ff4bcc46c23f8d87

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJe:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIR

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 37 IoCs

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

  • Loads dropped DLL 6 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 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 16 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 64 IoCs
  • Suspicious use of FindShellTrayWindow 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f98c438be981cf04775be0aaede2491a97d7209323426e6e38dbfbcf067bf20c.exe
    "C:\Users\Admin\AppData\Local\Temp\f98c438be981cf04775be0aaede2491a97d7209323426e6e38dbfbcf067bf20c.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Windows\SysWOW64\ilbbwqdcyp.exe
      ilbbwqdcyp.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Windows\SysWOW64\imlzbbbf.exe
        C:\Windows\system32\imlzbbbf.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1852
    • C:\Windows\SysWOW64\vfxjrhwjgfavfgi.exe
      vfxjrhwjgfavfgi.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:692
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c shwiqrkxgugig.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Windows\SysWOW64\shwiqrkxgugig.exe
          shwiqrkxgugig.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:1948
    • C:\Windows\SysWOW64\imlzbbbf.exe
      imlzbbbf.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:528
    • C:\Windows\SysWOW64\shwiqrkxgugig.exe
      shwiqrkxgugig.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1336
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      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:2032
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1048

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      255KB

      MD5

      6b263598731ea3046e2f445472325422

      SHA1

      540d529fdfaec0c59b7344c09718402c4ca0e1f4

      SHA256

      741b8de87c28bc8e178e81e95d4eea868246160b600d0b7ae753fb863dad8cb5

      SHA512

      a14f606199c935cdb262d66036cd416dd1b90750017d49aaff47a4550dd24abf0820d1c3fbca395a194b0a3daa66d0b999d1fc64b2bf57a1d39af0ea7ccb23a8

    • C:\Users\Admin\Documents\ConfirmInitialize.doc.exe

      Filesize

      255KB

      MD5

      3a689625c3faba1e70a04a44e7790444

      SHA1

      8619966a917a1ce9b23e0c169360ed00ae997b5f

      SHA256

      25da7abfa77d9bbbe34356e24968468b1f7489cc6060b073b50044c4dd201af7

      SHA512

      d217bf1b4546e9434527f87fd8209f97f3998cc5022f46765792ed025e97f15974b57670529c62de06e5c1783d516c4c4aa79ca6197c46078ec683ce5c5ccfaa

    • C:\Users\Admin\Downloads\RenameSplit.doc.exe

      Filesize

      255KB

      MD5

      69ee2de7c6e4a13873ca7f2b8c0e66c8

      SHA1

      df32406a74cd667af1658f48667993699944d829

      SHA256

      dbb60c001d61075b383743d18bd7aef95709e685aa5866b3c168b4011289399c

      SHA512

      60ebee752c56668eec59468757979b855ac8c5f8ef8ac10a7471f96a7e299eaeff5ac4a8190039de931ed664057a1088e7a9a6242505b4dccbd8108af05e69b6

    • C:\Windows\SysWOW64\ilbbwqdcyp.exe

      Filesize

      255KB

      MD5

      da5f057f5492d12c2b65f3ed33778deb

      SHA1

      c0a48055beeb427af18a34732d89868cc926a52b

      SHA256

      fbb2ed9813d44ca5b223b3d6f49aa1a6d505efa6ff77911ff7048db019ba2afb

      SHA512

      b021d9fcc7f718ac8270a8eb27a47e08fd0545ab79db1a93b4a9f92fc994abae1afa69a3d98f14535bb3be04d76a5ddcedac421e69fcf9e527719c198eea6846

    • C:\Windows\SysWOW64\ilbbwqdcyp.exe

      Filesize

      255KB

      MD5

      da5f057f5492d12c2b65f3ed33778deb

      SHA1

      c0a48055beeb427af18a34732d89868cc926a52b

      SHA256

      fbb2ed9813d44ca5b223b3d6f49aa1a6d505efa6ff77911ff7048db019ba2afb

      SHA512

      b021d9fcc7f718ac8270a8eb27a47e08fd0545ab79db1a93b4a9f92fc994abae1afa69a3d98f14535bb3be04d76a5ddcedac421e69fcf9e527719c198eea6846

    • C:\Windows\SysWOW64\imlzbbbf.exe

      Filesize

      255KB

      MD5

      aa4c4594b7af0ac797bd1e280b3498ba

      SHA1

      cb10cf363c4fcaeda07f8f060dda411b26b0fa55

      SHA256

      d92bdb037e2456d88343364fadceee02627219afe08cb95ea72246c9b1c22104

      SHA512

      15f4f8d9f541112422a65214e9342512ae2a7eaab3c3373d0200bf1f4e6c6faf31c18fd9d01cbf50a3500a626c1bf1a3702beba7802c6587ab1e665419a68cc1

    • C:\Windows\SysWOW64\imlzbbbf.exe

      Filesize

      255KB

      MD5

      aa4c4594b7af0ac797bd1e280b3498ba

      SHA1

      cb10cf363c4fcaeda07f8f060dda411b26b0fa55

      SHA256

      d92bdb037e2456d88343364fadceee02627219afe08cb95ea72246c9b1c22104

      SHA512

      15f4f8d9f541112422a65214e9342512ae2a7eaab3c3373d0200bf1f4e6c6faf31c18fd9d01cbf50a3500a626c1bf1a3702beba7802c6587ab1e665419a68cc1

    • C:\Windows\SysWOW64\imlzbbbf.exe

      Filesize

      255KB

      MD5

      aa4c4594b7af0ac797bd1e280b3498ba

      SHA1

      cb10cf363c4fcaeda07f8f060dda411b26b0fa55

      SHA256

      d92bdb037e2456d88343364fadceee02627219afe08cb95ea72246c9b1c22104

      SHA512

      15f4f8d9f541112422a65214e9342512ae2a7eaab3c3373d0200bf1f4e6c6faf31c18fd9d01cbf50a3500a626c1bf1a3702beba7802c6587ab1e665419a68cc1

    • C:\Windows\SysWOW64\shwiqrkxgugig.exe

      Filesize

      255KB

      MD5

      5c55640333ce7a17a827e823afcc541d

      SHA1

      e26e53f4095dedf07c8cb943573d3b88c90e5b91

      SHA256

      6c32a1a85aa6a43a5b3b26553ae15693842e5dbfe48bbaf91da83d0a4094dbce

      SHA512

      e9c8115898e34964b2c003e9878eea0f082234e35662e48f92e4eb91f88117e1e302dc2db47831d77895e42e75db34a23101a1ee8c2bc2dbe18f49d3b97e2f54

    • C:\Windows\SysWOW64\shwiqrkxgugig.exe

      Filesize

      255KB

      MD5

      5c55640333ce7a17a827e823afcc541d

      SHA1

      e26e53f4095dedf07c8cb943573d3b88c90e5b91

      SHA256

      6c32a1a85aa6a43a5b3b26553ae15693842e5dbfe48bbaf91da83d0a4094dbce

      SHA512

      e9c8115898e34964b2c003e9878eea0f082234e35662e48f92e4eb91f88117e1e302dc2db47831d77895e42e75db34a23101a1ee8c2bc2dbe18f49d3b97e2f54

    • C:\Windows\SysWOW64\shwiqrkxgugig.exe

      Filesize

      255KB

      MD5

      5c55640333ce7a17a827e823afcc541d

      SHA1

      e26e53f4095dedf07c8cb943573d3b88c90e5b91

      SHA256

      6c32a1a85aa6a43a5b3b26553ae15693842e5dbfe48bbaf91da83d0a4094dbce

      SHA512

      e9c8115898e34964b2c003e9878eea0f082234e35662e48f92e4eb91f88117e1e302dc2db47831d77895e42e75db34a23101a1ee8c2bc2dbe18f49d3b97e2f54

    • C:\Windows\SysWOW64\vfxjrhwjgfavfgi.exe

      Filesize

      255KB

      MD5

      160e00a4d2874e0d86a6be9b0b8906f9

      SHA1

      8aebc9c646f0156242f62cae333989ac389ace8e

      SHA256

      20e735db2fe74ef3bbc49393f39cbd79606d1be1ceea8207ab1403140da56efd

      SHA512

      a4504ba75589bb99e0ef06b1f68a1d0c5cbaabb9aa1d26a8fdae0c8659371bd937b458869749943f842e64c734ddf3be2aabedac333caea5b0e3a02385af6297

    • C:\Windows\SysWOW64\vfxjrhwjgfavfgi.exe

      Filesize

      255KB

      MD5

      160e00a4d2874e0d86a6be9b0b8906f9

      SHA1

      8aebc9c646f0156242f62cae333989ac389ace8e

      SHA256

      20e735db2fe74ef3bbc49393f39cbd79606d1be1ceea8207ab1403140da56efd

      SHA512

      a4504ba75589bb99e0ef06b1f68a1d0c5cbaabb9aa1d26a8fdae0c8659371bd937b458869749943f842e64c734ddf3be2aabedac333caea5b0e3a02385af6297

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe

      Filesize

      255KB

      MD5

      625db70a3a06c1696d0751b361045672

      SHA1

      599a1094c9822c60dbe39a58c608e1f2b421d81f

      SHA256

      f9f70a1118589e2f1cbb09b14c624f0eb3d8e6a6b618d57cc49f54bbca746cc7

      SHA512

      77fb656c46b003fc47b944d192618aa780432aad62cd5340f1765c3946818e160d64185981f13bc42808ee367da09326b6016aade0f7ed96e078a1168f3011a8

    • \??\c:\Users\Admin\Documents\ConfirmInitialize.doc.exe

      Filesize

      255KB

      MD5

      3a689625c3faba1e70a04a44e7790444

      SHA1

      8619966a917a1ce9b23e0c169360ed00ae997b5f

      SHA256

      25da7abfa77d9bbbe34356e24968468b1f7489cc6060b073b50044c4dd201af7

      SHA512

      d217bf1b4546e9434527f87fd8209f97f3998cc5022f46765792ed025e97f15974b57670529c62de06e5c1783d516c4c4aa79ca6197c46078ec683ce5c5ccfaa

    • \Windows\SysWOW64\ilbbwqdcyp.exe

      Filesize

      255KB

      MD5

      da5f057f5492d12c2b65f3ed33778deb

      SHA1

      c0a48055beeb427af18a34732d89868cc926a52b

      SHA256

      fbb2ed9813d44ca5b223b3d6f49aa1a6d505efa6ff77911ff7048db019ba2afb

      SHA512

      b021d9fcc7f718ac8270a8eb27a47e08fd0545ab79db1a93b4a9f92fc994abae1afa69a3d98f14535bb3be04d76a5ddcedac421e69fcf9e527719c198eea6846

    • \Windows\SysWOW64\imlzbbbf.exe

      Filesize

      255KB

      MD5

      aa4c4594b7af0ac797bd1e280b3498ba

      SHA1

      cb10cf363c4fcaeda07f8f060dda411b26b0fa55

      SHA256

      d92bdb037e2456d88343364fadceee02627219afe08cb95ea72246c9b1c22104

      SHA512

      15f4f8d9f541112422a65214e9342512ae2a7eaab3c3373d0200bf1f4e6c6faf31c18fd9d01cbf50a3500a626c1bf1a3702beba7802c6587ab1e665419a68cc1

    • \Windows\SysWOW64\imlzbbbf.exe

      Filesize

      255KB

      MD5

      aa4c4594b7af0ac797bd1e280b3498ba

      SHA1

      cb10cf363c4fcaeda07f8f060dda411b26b0fa55

      SHA256

      d92bdb037e2456d88343364fadceee02627219afe08cb95ea72246c9b1c22104

      SHA512

      15f4f8d9f541112422a65214e9342512ae2a7eaab3c3373d0200bf1f4e6c6faf31c18fd9d01cbf50a3500a626c1bf1a3702beba7802c6587ab1e665419a68cc1

    • \Windows\SysWOW64\shwiqrkxgugig.exe

      Filesize

      255KB

      MD5

      5c55640333ce7a17a827e823afcc541d

      SHA1

      e26e53f4095dedf07c8cb943573d3b88c90e5b91

      SHA256

      6c32a1a85aa6a43a5b3b26553ae15693842e5dbfe48bbaf91da83d0a4094dbce

      SHA512

      e9c8115898e34964b2c003e9878eea0f082234e35662e48f92e4eb91f88117e1e302dc2db47831d77895e42e75db34a23101a1ee8c2bc2dbe18f49d3b97e2f54

    • \Windows\SysWOW64\shwiqrkxgugig.exe

      Filesize

      255KB

      MD5

      5c55640333ce7a17a827e823afcc541d

      SHA1

      e26e53f4095dedf07c8cb943573d3b88c90e5b91

      SHA256

      6c32a1a85aa6a43a5b3b26553ae15693842e5dbfe48bbaf91da83d0a4094dbce

      SHA512

      e9c8115898e34964b2c003e9878eea0f082234e35662e48f92e4eb91f88117e1e302dc2db47831d77895e42e75db34a23101a1ee8c2bc2dbe18f49d3b97e2f54

    • \Windows\SysWOW64\vfxjrhwjgfavfgi.exe

      Filesize

      255KB

      MD5

      160e00a4d2874e0d86a6be9b0b8906f9

      SHA1

      8aebc9c646f0156242f62cae333989ac389ace8e

      SHA256

      20e735db2fe74ef3bbc49393f39cbd79606d1be1ceea8207ab1403140da56efd

      SHA512

      a4504ba75589bb99e0ef06b1f68a1d0c5cbaabb9aa1d26a8fdae0c8659371bd937b458869749943f842e64c734ddf3be2aabedac333caea5b0e3a02385af6297

    • memory/528-102-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/528-91-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/528-116-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/528-66-0x0000000000000000-mapping.dmp

    • memory/692-59-0x0000000000000000-mapping.dmp

    • memory/692-101-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/692-73-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/972-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/972-63-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/972-54-0x00000000757B1000-0x00000000757B3000-memory.dmp

      Filesize

      8KB

    • memory/972-65-0x0000000002ED0000-0x0000000002F70000-memory.dmp

      Filesize

      640KB

    • memory/1048-113-0x000007FEFB851000-0x000007FEFB853000-memory.dmp

      Filesize

      8KB

    • memory/1048-112-0x0000000000000000-mapping.dmp

    • memory/1176-70-0x0000000000000000-mapping.dmp

    • memory/1336-103-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1336-75-0x0000000000000000-mapping.dmp

    • memory/1336-92-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1356-69-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1356-56-0x0000000000000000-mapping.dmp

    • memory/1356-100-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1852-94-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1852-105-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1852-115-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1852-85-0x0000000000000000-mapping.dmp

    • memory/1948-80-0x0000000000000000-mapping.dmp

    • memory/1948-104-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1948-93-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/2032-95-0x000000006FDC1000-0x000000006FDC3000-memory.dmp

      Filesize

      8KB

    • memory/2032-98-0x0000000070DAD000-0x0000000070DB8000-memory.dmp

      Filesize

      44KB

    • memory/2032-108-0x0000000070DAD000-0x0000000070DB8000-memory.dmp

      Filesize

      44KB

    • memory/2032-88-0x0000000000000000-mapping.dmp

    • memory/2032-114-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2032-96-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2032-90-0x0000000072341000-0x0000000072344000-memory.dmp

      Filesize

      12KB