Overview

overview

8

Static

static

3

5575de5478...e1.exe

windows7-x64

8

5575de5478...e1.exe

windows10-2004-x64

1

Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12-01-2024 04:14

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General

  • Target

    5575de547844c20af9ce435ebc8298e1.exe

  • Size

    230KB

  • MD5

    5575de547844c20af9ce435ebc8298e1

  • SHA1

    456906f340104766c8a3f68aab3316c64c5e3488

  • SHA256

    0faf2887c3bcca4f11c11344edeb9701151443f7502255d24980821388b6e1b0

  • SHA512

    8d9e772859044aa0a28bdcd36ee4d9ed3dc35babf9b213522aa5b6faf31fcbbc626698e766fd9a48f0b861ab59b30803913bcebfc4fcce9a87b97634f624a80b

  • SSDEEP

    6144:r5XLk7LJwdrdDJc3qvWJVGPiEzoDYGVHSY:NXKSdRJc3BVPEzCVyY

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Disables taskbar notifications via registry modification
    evasion
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 17 IoCs
    persistence
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Modifies registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 31 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\5575de547844c20af9ce435ebc8298e1.exe
    "C:\Users\Admin\AppData\Local\Temp\5575de547844c20af9ce435ebc8298e1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Users\Admin\AppData\Local\fks.exe
      "C:\Users\Admin\AppData\Local\fks.exe" -gav C:\Users\Admin\AppData\Local\Temp\5575de547844c20af9ce435ebc8298e1.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2712
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\fks.exe
    Filesize

    230KB

    MD5

    5575de547844c20af9ce435ebc8298e1

    SHA1

    456906f340104766c8a3f68aab3316c64c5e3488

    SHA256

    0faf2887c3bcca4f11c11344edeb9701151443f7502255d24980821388b6e1b0

    SHA512

    8d9e772859044aa0a28bdcd36ee4d9ed3dc35babf9b213522aa5b6faf31fcbbc626698e766fd9a48f0b861ab59b30803913bcebfc4fcce9a87b97634f624a80b

    Download Submit

  • memory/1968-0-0x0000000000250000-0x0000000000282000-memory.dmp

    Filesize

    200KB

    Download

  • memory/1968-1-0x00000000007F0000-0x0000000000AA7000-memory.dmp

    Filesize

    2.7MB

    Download

  • memory/1968-2-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/1968-12-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-19-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-21-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-34-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-15-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-16-0x0000000000250000-0x0000000000282000-memory.dmp

    Filesize

    200KB

    Download

  • memory/2712-17-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-33-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-13-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-20-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-11-0x0000000000250000-0x0000000000282000-memory.dmp

    Filesize

    200KB

    Download

  • memory/2712-22-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-26-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-27-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-28-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-29-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-30-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2712-31-0x0000000000400000-0x00000000005F1000-memory.dmp

    Filesize

    1.9MB

    Download

  • memory/2728-32-0x0000000002600000-0x0000000002610000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2728-18-0x00000000043A0000-0x00000000043A1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2728-14-0x00000000043A0000-0x00000000043A1000-memory.dmp

    Filesize

    4KB

    Download