Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 13:23

General

  • Target

    b19cc27771394c3d90c28fdb23215cc3_JC.exe

  • Size

    438KB

  • MD5

    b19cc27771394c3d90c28fdb23215cc3

  • SHA1

    6dd020356de5c48dbfdc9028b4b0996cee99bf92

  • SHA256

    4a5c822b4e83e0722ae8aa1842b05b4022587eb2808ef8b1c84382b1f2527c8a

  • SHA512

    a50a17f774d6f392e8bec312a0cd76757869e8f9f1f291b3f016b6e95834dc6a23abf26e5ef163b0294c977007a5eab570a81ef18509fc7d1ad97c6f02ecb5d3

  • SSDEEP

    6144:/GrpJMpqojYraTWomVjJO0DDDjC/tPhpTkPpMPM7Atvt44No/WxMc85V2JEI0KWB:/CKseWomPrHD2FPbkPV7exj85VTI0QtM

Malware Config

Signatures

  • Executes dropped EXE 2 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.

  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b19cc27771394c3d90c28fdb23215cc3_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\b19cc27771394c3d90c28fdb23215cc3_JC.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe
      C:\Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe
      2⤵
      • Executes dropped EXE
      PID:2348
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe

    Filesize

    54KB

    MD5

    c8d2c80a4c03e145790204cb3f6096f8

    SHA1

    4ba1ec9dba5110de37a0bff0c3df6d86cc9f5978

    SHA256

    f519772708f5a1a6e68ebce244a7fc3dde35785b909cba5d6ce86e0e67a6a046

    SHA512

    8de35a03fb864d0ea2e35d8d95e17f4c9d368455bd3922700066b1f59aeff8787dc85aada5d88742dcef7f17ca00472ae1fb4b9402bc92e9d19ce86d9763194b

  • C:\Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe

    Filesize

    54KB

    MD5

    c8d2c80a4c03e145790204cb3f6096f8

    SHA1

    4ba1ec9dba5110de37a0bff0c3df6d86cc9f5978

    SHA256

    f519772708f5a1a6e68ebce244a7fc3dde35785b909cba5d6ce86e0e67a6a046

    SHA512

    8de35a03fb864d0ea2e35d8d95e17f4c9d368455bd3922700066b1f59aeff8787dc85aada5d88742dcef7f17ca00472ae1fb4b9402bc92e9d19ce86d9763194b

  • C:\Windows\CTS.exe

    Filesize

    384KB

    MD5

    31b238222edc598837bfb5f2c427c170

    SHA1

    ec7f705b62c172124079b3d1341fe06ed080e565

    SHA256

    b339c27af9fdd8aee7f8fdf41ebadd5b56ec25a9c60a9691b9e3008f9dd0cfee

    SHA512

    ba49b9b780a5438c5ae1093998e560de2e920cb1d15d608c1f52a5434f42044e2cca0d1abeaaf69693aae3dfa9702f5837269793d16017a50d46204919689add

  • C:\Windows\CTS.exe

    Filesize

    384KB

    MD5

    31b238222edc598837bfb5f2c427c170

    SHA1

    ec7f705b62c172124079b3d1341fe06ed080e565

    SHA256

    b339c27af9fdd8aee7f8fdf41ebadd5b56ec25a9c60a9691b9e3008f9dd0cfee

    SHA512

    ba49b9b780a5438c5ae1093998e560de2e920cb1d15d608c1f52a5434f42044e2cca0d1abeaaf69693aae3dfa9702f5837269793d16017a50d46204919689add

  • C:\Windows\CTS.exe

    Filesize

    384KB

    MD5

    31b238222edc598837bfb5f2c427c170

    SHA1

    ec7f705b62c172124079b3d1341fe06ed080e565

    SHA256

    b339c27af9fdd8aee7f8fdf41ebadd5b56ec25a9c60a9691b9e3008f9dd0cfee

    SHA512

    ba49b9b780a5438c5ae1093998e560de2e920cb1d15d608c1f52a5434f42044e2cca0d1abeaaf69693aae3dfa9702f5837269793d16017a50d46204919689add

  • \Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe

    Filesize

    54KB

    MD5

    c8d2c80a4c03e145790204cb3f6096f8

    SHA1

    4ba1ec9dba5110de37a0bff0c3df6d86cc9f5978

    SHA256

    f519772708f5a1a6e68ebce244a7fc3dde35785b909cba5d6ce86e0e67a6a046

    SHA512

    8de35a03fb864d0ea2e35d8d95e17f4c9d368455bd3922700066b1f59aeff8787dc85aada5d88742dcef7f17ca00472ae1fb4b9402bc92e9d19ce86d9763194b

  • \Users\Admin\AppData\Local\Temp\swDmDVF2TNnwkHj.exe

    Filesize

    54KB

    MD5

    c8d2c80a4c03e145790204cb3f6096f8

    SHA1

    4ba1ec9dba5110de37a0bff0c3df6d86cc9f5978

    SHA256

    f519772708f5a1a6e68ebce244a7fc3dde35785b909cba5d6ce86e0e67a6a046

    SHA512

    8de35a03fb864d0ea2e35d8d95e17f4c9d368455bd3922700066b1f59aeff8787dc85aada5d88742dcef7f17ca00472ae1fb4b9402bc92e9d19ce86d9763194b

  • memory/2184-13-0x0000000000FE0000-0x0000000000FFF000-memory.dmp

    Filesize

    124KB

  • memory/2184-0-0x0000000000FE0000-0x0000000000FFF000-memory.dmp

    Filesize

    124KB

  • memory/2184-14-0x00000000000F0000-0x000000000010F000-memory.dmp

    Filesize

    124KB

  • memory/2184-17-0x00000000000F0000-0x000000000010F000-memory.dmp

    Filesize

    124KB

  • memory/2184-22-0x00000000000F0000-0x000000000010F000-memory.dmp

    Filesize

    124KB

  • memory/2736-18-0x0000000000860000-0x000000000087F000-memory.dmp

    Filesize

    124KB