Windows 7 deprecation

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Analysis

  • max time kernel
    120s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    07/08/2024, 00:36

General

  • Target

    35ebf3f11a0c5ba77566041509498040N.exe

  • Size

    44KB

  • MD5

    35ebf3f11a0c5ba77566041509498040

  • SHA1

    ae549b7d96afb18fc7eba316147a5c90cc5c484c

  • SHA256

    1e84e45e8ef5aaea348bd22fad25267c711abee080dad5b2e16b116a4869d3fe

  • SHA512

    b7938b4c640f79a9bbdd87cb59e715fe38f7e2ae3e58b0fb6a694cf44c34882f7f90ee592289c38c5b50f785805186b1726bfc5f0491ef9c34cc87bc4f078927

  • SSDEEP

    768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhP:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYv

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\35ebf3f11a0c5ba77566041509498040N.exe
    "C:\Users\Admin\AppData\Local\Temp\35ebf3f11a0c5ba77566041509498040N.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    45KB

    MD5

    90944780e803e1a717730dc53f898604

    SHA1

    e261761899f18bc978d640ecdb06cb16cdac7cff

    SHA256

    151d5c949f4b05db0f2bf54d7804e7d3f9cd01a96f52bb060f1976b9538066b8

    SHA512

    c75889c5c17cdb8b235f0fedc3b54aa3871966e777812c9ada8fcc4ff4a56c48dcb8b25e1fad994f11b3954f7b7a8d104b07c25ee4c436e47108f03ecaf87c6c

  • memory/2112-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2112-3-0x00000000001B0000-0x00000000001B3000-memory.dmp

    Filesize

    12KB

  • memory/2388-8-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB