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Analysis

  • max time kernel
    152s
  • max time network
    198s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 08:49

General

  • Target

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6.exe

  • Size

    262KB

  • MD5

    a6971be2cb24e5b1754cb490bb022e59

  • SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

  • SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

  • SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

  • SSDEEP

    3072:aDrF9h20NUmzQze45ggO8/tmiG+lDe7eWQbFo90mcrWt7HrOgwcoutZ:a19RNUmzQzjgH8/tmiGqcoS

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 3 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 14 IoCs

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

  • 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 1 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 56 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6.exe
    "C:\Users\Admin\AppData\Local\Temp\d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • 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
        • 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:1576
  • 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:1956
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1956 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1216

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

    6a54591d9751a88b16e95df44b916c96

    SHA1

    dfdaf9cba279a35857b4427371b614dfcc4424f3

    SHA256

    7e143ea117e729308d252c3ac2865ba59842c945748acfba15416bee40bcb422

    SHA512

    79709079c5bcbd135dd42f8ad60d45c7162af62c9aa884dde534ad20bc4e02bcec919b29211f580021fc16a55819f20573423f3cbc1cd42921f0ce02e545df18

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

    Filesize

    342B

    MD5

    2756c9bd6e453d71080a38a52fa1a1bf

    SHA1

    9e9ddf49cb6a3707bbc810313f9a5b46cb980790

    SHA256

    956e24d405d029f8073a61007f793ddd2b91cb6c619ab4a521767b56235ed265

    SHA512

    a0c0a7d0ed21b51d10d7e250374624367228813463934bafbfa630cec5d5b30ea76abb9f28e00b72836a91b1b3883758478b4eae25aa2a7afbb661257b675890

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

    Filesize

    342B

    MD5

    2756c9bd6e453d71080a38a52fa1a1bf

    SHA1

    9e9ddf49cb6a3707bbc810313f9a5b46cb980790

    SHA256

    956e24d405d029f8073a61007f793ddd2b91cb6c619ab4a521767b56235ed265

    SHA512

    a0c0a7d0ed21b51d10d7e250374624367228813463934bafbfa630cec5d5b30ea76abb9f28e00b72836a91b1b3883758478b4eae25aa2a7afbb661257b675890

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

    Filesize

    342B

    MD5

    5d8cbc01e4be8ab15a15a7749bbd21f9

    SHA1

    87e45119b55c3071b8365ba866ff6ca89f5f33ee

    SHA256

    e22f1c420db30b02aceef66729067e96862beee7a08eeafcbb2d9ae50860fd2d

    SHA512

    743a92e27dd89ba15c63f9ca6bc7593851f3799c64ce8a2bf5b741fc1765a1d0e4df284f2a07d4897473e9193a04c579bd9be3a600734381470acbb2927ab529

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

    Filesize

    342B

    MD5

    d5a3ee18e8ce65a21680e38830b76da5

    SHA1

    2e5f52fa0ce36442999e0fb961ce2436582c47ed

    SHA256

    422d55f1fae4859c32daff0d6c207746beb73b22f70bd190850374c0687efd53

    SHA512

    e768b92bec5fd33e69328a6015650f7087ab18ea614c17c9b51b26953caa41caccc080bf4741b7082c75e9b9622e5a96dbc01352f8276c5048fc4b848a84674c

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

    Filesize

    342B

    MD5

    b7e017f64d89a44b60994c33de38cd93

    SHA1

    c26d1ff7250b389e5896989035a50cce14618ae9

    SHA256

    85804da805e73e7583b21ebd2a304413b478f07bb1a42b1e322459fc446d2ba4

    SHA512

    9c45ff3313019c1ede381f47a12388961fb146ac8f0165a8cb70f85ab3e7246a4448e708b250548e0c9a144c42bfd52a4d06ecca809c16708ad855a3f5fad901

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

    Filesize

    262KB

    MD5

    a6971be2cb24e5b1754cb490bb022e59

    SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

    SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

    SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

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

    Filesize

    262KB

    MD5

    a6971be2cb24e5b1754cb490bb022e59

    SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

    SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

    SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

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

    Filesize

    262KB

    MD5

    a6971be2cb24e5b1754cb490bb022e59

    SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

    SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

    SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    262KB

    MD5

    a6971be2cb24e5b1754cb490bb022e59

    SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

    SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

    SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    262KB

    MD5

    a6971be2cb24e5b1754cb490bb022e59

    SHA1

    52eab59c3bf776481cb797568ef007af80235fa6

    SHA256

    d966d227b78731ad609ebaab0a7b74c5270c0093c610d0bb739c553728f793d6

    SHA512

    12b2fbdf018bcbff1bd8892b6486051f4f8d9fe1d3afc40d8dda2fd82ccc06e642a03a30a263a50f189e88b7429c36469913902f049bd2472736848db81d2843

  • memory/848-65-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/848-67-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1348-56-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1348-62-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1348-57-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB

  • memory/1576-73-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1576-74-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1576-77-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1576-79-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1576-69-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB