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Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/02/2024, 08:50

General

  • Target

    ab7cd8fa28142b0dc7a04eb54900fed3.exe

  • Size

    1.1MB

  • MD5

    ab7cd8fa28142b0dc7a04eb54900fed3

  • SHA1

    b7b2037e9f0141a0e9628d60cc2344e0e6a5c905

  • SHA256

    612882f1d59d610ed6ebdbc5b4d71d256e3857d0faf91d802fbc4b60d64edb52

  • SHA512

    fa2bcb6157eb8e3413da2b9c6617d2e1759bb0dfecdf2fd1728f255449384618e4e7f3cf78377513a99e903bb1924ce365448697a8835c2b73b34db3a559783f

  • SSDEEP

    24576:h3+USWqrLV4R9W1zqiChJfRAONeT61t0WnW1s/wfIuyzjbtBhqM7VbwE2wUr4aLj:h3+sqVBWJ/vNeT6vQsQ43RqMxF2B+ed

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 4 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab7cd8fa28142b0dc7a04eb54900fed3.exe
    "C:\Users\Admin\AppData\Local\Temp\ab7cd8fa28142b0dc7a04eb54900fed3.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:2968
    • C:\Users\Admin\AppData\Local\Temp\yLtlZKou7vdW9fR.exe
      C:\Users\Admin\AppData\Local\Temp\yLtlZKou7vdW9fR.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:1552
    • 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:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\CTS.exe

    Filesize

    59KB

    MD5

    5efd390d5f95c8191f5ac33c4db4b143

    SHA1

    42d81b118815361daa3007f1a40f1576e9a9e0bc

    SHA256

    6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

    SHA512

    720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

  • \Users\Admin\AppData\Local\Temp\yLtlZKou7vdW9fR.exe

    Filesize

    1.1MB

    MD5

    53baee50f7a69bf3bc0fffe25341a923

    SHA1

    0b7998f5517ed4e7c5aeea3a89d73b60d2a2d102

    SHA256

    f91e258ea71dcbfc82371b2ee3e20852e45bef0cb946223d1141a6ef1dfb793f

    SHA512

    0eb28032849f775f604b7064a4f00f7d802c8c2fd5c7bc21b48298e6c3d316286963794b4c6c4981199c21f56b08d9aa466a470d40738d1b633b7feddc8e6241

  • memory/2892-15-0x0000000001130000-0x0000000001147000-memory.dmp

    Filesize

    92KB

  • memory/2968-0-0x0000000000390000-0x00000000003A7000-memory.dmp

    Filesize

    92KB

  • memory/2968-11-0x0000000000390000-0x00000000003A7000-memory.dmp

    Filesize

    92KB

  • memory/2968-14-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB

  • memory/2968-164-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB