Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29/09/2024, 18:17

General

  • Target

    0540db8c25a6f134caff0bdf1acb75e71295213e848068ada3645c127bef6075.exe

  • Size

    60KB

  • MD5

    cf8f8593652077f8ba0992344bcefb5b

  • SHA1

    6259ca7c277468682abc3f770661d401627ce7c7

  • SHA256

    0540db8c25a6f134caff0bdf1acb75e71295213e848068ada3645c127bef6075

  • SHA512

    ae3719a6df676abed355efd1d7afed3cf1c8386a401461eb506f99df80515a6195f8363046c6daa3b39786f5818e0b5a945c1a267290f6a426165d9b86633609

  • SSDEEP

    1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIq:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVs

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0540db8c25a6f134caff0bdf1acb75e71295213e848068ada3645c127bef6075.exe
    "C:\Users\Admin\AppData\Local\Temp\0540db8c25a6f134caff0bdf1acb75e71295213e848068ada3645c127bef6075.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    60KB

    MD5

    e1d24cb8857bebf73627813ecf14c578

    SHA1

    1e1b6f4495e9133be0a4d1a8983436c763a95add

    SHA256

    79784f391402da41f11a1a7970fd458a7e04ef6ed94be9eadbafbbf38f0b5543

    SHA512

    e7fae5bbc64f2d8ed712b83e079d6cdcf295ec55d1e7b507bf04de097fb48e8c4b091730be57f49f44f9c1665fce710e4ff632acaee5fef627e9eb674ef9a8ad

  • memory/2568-8-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2568-10-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2684-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2684-3-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB