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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/04/2024, 21:37

General

  • Target

    612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe

  • Size

    29KB

  • MD5

    02521a1fa8333197f1cbeea9d4d25e6b

  • SHA1

    7932bfa4028b5d456838116ada5f50baa8bf2d0b

  • SHA256

    612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af

  • SHA512

    80a517735e53740fb01ab422be018b4537ba89cc26a98bb3fb2ed111238cd1030f691614609a550cbd9107e04412c80e876e92ade1fcd18680be8f7edfe46ced

  • SSDEEP

    768:XkX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIorj0:6KcR4mjD9r82+j0

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 6 IoCs
  • 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 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe
    "C:\Users\Admin\AppData\Local\Temp\612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3152
    • 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:1476

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

    350KB

    MD5

    c572a772772349166a2858d4a2194453

    SHA1

    9153239b48ee4f4ac8c44578a25052c618c36465

    SHA256

    eff13b11790a39923eb4b276f24d941a93fd4f22e15c733ea66c01016d1497c0

    SHA512

    5a5b6be34830406705e8699dd0af66874de4a01f08a391c87aedf837cfd7d7486f6c86787a6a711238bd053de638d2fd225f58b1ca0e1d6c36060bc420f39cd6

  • C:\Users\Admin\AppData\Local\Temp\IqJcfCI56TqPtd6.exe

    Filesize

    29KB

    MD5

    48b95aacb6e2f03c9e5a83f13737c5a6

    SHA1

    f817813cf16a15e32326fcde6f7d81216d8c7073

    SHA256

    18d1bae3d4f51ed5adbd9d4a42d7cf44c3d752dc33036abc4d6b71a3bf8cd1f8

    SHA512

    47cee005c0afd514ab6a4476ed19e3fcf353d1f8adbc83e6f196343aceb358e528998aedbf18f72b61c82dac429f7210c3db6e4b0b6eecb1d974ce917487cc14

  • C:\Windows\CTS.exe

    Filesize

    26KB

    MD5

    286211b8e0aad0533c45d8b8c351cc70

    SHA1

    cb54a305a566c00742fb972c4ee62266e880ea78

    SHA256

    1955407b2fd523e375303d560b987216b95105b421a8471218c0b65ceba847f3

    SHA512

    91eddd484a40aee3a7a9254fd6843b3d9dd455e6a2c4d685d499ab1704d8644a6dc604ad14449e96b0754ae3e6c1c14c16d068605aa4e39840e0421aa7a4be35

  • memory/1476-9-0x00000000008E0000-0x00000000008F7000-memory.dmp

    Filesize

    92KB

  • memory/3152-0-0x0000000000BB0000-0x0000000000BC7000-memory.dmp

    Filesize

    92KB

  • memory/3152-7-0x0000000000BB0000-0x0000000000BC7000-memory.dmp

    Filesize

    92KB