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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/09/2024, 23:43

General

  • Target

    e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe

  • Size

    239KB

  • MD5

    b291a76fac914678daafc9d0a6f8e8cc

  • SHA1

    8a7b74496983239c1a28ce9d6f2d382ec8b55c55

  • SHA256

    e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28

  • SHA512

    02ce74d892f280beabdb32e7be6df7763e0953085a35d87c725df6a074e3c8830bbd2f7a0b07aede895580df941717b307e775dc484f4472dc81832d2b59b8e1

  • SSDEEP

    6144:Sjepbtc3rWVM9YdgxRtMSsHSFGLQ6Y5xKu+1+hUUEi3:SjephYqVM/xeS7xKuFhlEW

Malware Config

Signatures

  • Executes dropped EXE 1 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 7 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe
    "C:\Users\Admin\AppData\Local\Temp\e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3836
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    349KB

    MD5

    56d119465ecb4bbb18df0d4d78fbf3c6

    SHA1

    bb57758f7765b6d5ca867a2c229d431baa6ded83

    SHA256

    a4cb0a21621984a6da4a0eff9ec42c42cc06d4fa61b5b0053429e35f495d60af

    SHA512

    1a964d29e3d091a0edface0b20f77ecdeac922fa2e8eba363a7d0163c2810caa988d48b81ba1db0a4a0bbd5d5f98feec498b97c751a18b8a5ad067c791a7b628

  • C:\Users\Admin\AppData\Local\Temp\Bdq2n2eaDgT8Uzb.exe

    Filesize

    239KB

    MD5

    dbaa49176b56e96ffc8d537d2bea85e1

    SHA1

    acf8224d1f18b97f345e1f4f16f7f78eedc9836b

    SHA256

    927ed2bf333a155f00fcae3a419007abc41e600f37efa2b15e6e8d4405977968

    SHA512

    d4185d920add7387f0dd9dc64734157761bfafc060bcb5d158526f001e8c893ae3ce736a2f62f5539e3604b0af084c91ed33012227229f824ba84839b1fdef5a

  • C:\Windows\CTS.exe

    Filesize

    28KB

    MD5

    e6150447c894ade7b2b9ee88d5933922

    SHA1

    dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

    SHA256

    b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

    SHA512

    d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

  • memory/3836-0-0x00000000003D0000-0x00000000003E7000-memory.dmp

    Filesize

    92KB

  • memory/3836-7-0x00000000003D0000-0x00000000003E7000-memory.dmp

    Filesize

    92KB

  • memory/4132-8-0x00000000002A0000-0x00000000002B7000-memory.dmp

    Filesize

    92KB

  • memory/4132-32-0x00000000002A0000-0x00000000002B7000-memory.dmp

    Filesize

    92KB