Windows 7 deprecation

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Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2024, 22:02

General

  • Target

    9f5480bde1b27b9ecbf51dd9e1c4fd5af3597720b8a505f49751dd70c25697a6N.exe

  • Size

    43KB

  • MD5

    00fe31ad8bfadeb94dd03889bb60b160

  • SHA1

    5c6adc68478ad489eeb7dba002bc7851367e8450

  • SHA256

    9f5480bde1b27b9ecbf51dd9e1c4fd5af3597720b8a505f49751dd70c25697a6

  • SHA512

    ab7e91fb2fb1f4949b5b2661f31613b633b9149a3568f783302f53e9b1d317a10ae142cce33581875e7c9d6596d1de6b4341e04621d5ee454b20114fdea7a7b1

  • SSDEEP

    768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhz:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYT

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\9f5480bde1b27b9ecbf51dd9e1c4fd5af3597720b8a505f49751dd70c25697a6N.exe
    "C:\Users\Admin\AppData\Local\Temp\9f5480bde1b27b9ecbf51dd9e1c4fd5af3597720b8a505f49751dd70c25697a6N.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    43KB

    MD5

    e075aa0bdc1863d236c05f83a6716249

    SHA1

    270e0ed2ab572029d21353316d32a2d6bf818f8a

    SHA256

    a8f18c3bf0d9bef63c80d077d445ade5df8616baca88da562f9577ec649b3587

    SHA512

    b89776f184cb7f5c7bec124ee060ec71e30d86a19a9c030723a281f0ebae10831cfd50d05d8344608fa37f7513337fa04582d5862d19c7f496f2563a6d5c37ab

  • memory/1540-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/1540-3-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB

  • memory/1540-7-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2488-9-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2488-11-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB