Analysis

  • max time kernel
    150s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 13:13

General

  • Target
    Followupsheet Setup.exe
  • Size 5.6MB
  • Sample260831-qgh4rsseqc
  • SHA256 d0798a989bbd25d302543c65bffdeb7442a858234e6df2e96d12effa05602cb8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 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.

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Followupsheet Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Followupsheet Setup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Users\Admin\AppData\Local\Temp\is-QPUI77CPX3.tmp\Followupsheet Setup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QPUI77CPX3.tmp\Followupsheet Setup.tmp" /SL5="$4011A,4600484,1000448,C:\Users\Admin\AppData\Local\Temp\Followupsheet Setup.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3436

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Followupsheet Setup.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-QPUI77CPX3.tmp\Followupsheet Setup.tmp
        • Size 4.3MB
        • SHA256 02306010176bc4ad65c644e3e455dfb5e7fd995017887db0dac73afe679dccc6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1060-8-0x0000000000E50000-0x0000000000F53000-memory.dmp

        memory/1060-1-0x0000000000E50000-0x0000000000F53000-memory.dmp

        memory/3436-16-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-20-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-10-0x0000000001090000-0x0000000001091000-memory.dmp

        memory/3436-12-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-14-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-6-0x0000000001090000-0x0000000001091000-memory.dmp

        memory/3436-18-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-9-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-22-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-24-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-26-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-28-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-30-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-32-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-34-0x0000000000190000-0x00000000005ED000-memory.dmp

        memory/3436-36-0x0000000000190000-0x00000000005ED000-memory.dmp