Windows 7 deprecation

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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 01:43

General

  • Target

    c9e505b6919b88872c9097c23b183fd15706d82988e69ff3f5a2d01dd62879af.exe

  • Size

    38KB

  • MD5

    4792224a1fda9e36beadde993058f3f8

  • SHA1

    b8eeceffa43080c07b569e7034e63164f9779e9d

  • SHA256

    c9e505b6919b88872c9097c23b183fd15706d82988e69ff3f5a2d01dd62879af

  • SHA512

    07526572d51e0b800436dae99422afe016943c7cc329cfba60d2790a9c922b3c4d50a25a90d87f52b3f457bf0778bbec4f6a8a8978119920f4cc5dbf4dcc0539

  • SSDEEP

    768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhF:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYl

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 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9e505b6919b88872c9097c23b183fd15706d82988e69ff3f5a2d01dd62879af.exe
    "C:\Users\Admin\AppData\Local\Temp\c9e505b6919b88872c9097c23b183fd15706d82988e69ff3f5a2d01dd62879af.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    38KB

    MD5

    0ded696732a7582ed113cd60a48fc425

    SHA1

    6f61f7f715d7fc662481bd0335ad395eef8271b5

    SHA256

    9c3bf44f50b0697e3fdc42c350fe06a88e8bc15d0c2c6ea2c0aec829129fddef

    SHA512

    38820250ad38301dcc03a1804100b1c505bb613ec50624062e809f156be9516089c4bac7e52f469287675671a1fc2d5bc76efae25b619d3833ffbba864101cba

  • memory/1840-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/1840-4-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/3912-6-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB