Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 12:17

General

  • Target
    update4_21[F].exe
  • Size 1.4MB
  • Sample260601-pgcfjsdt4r
  • SHA256 da0d3c11ade5c1d86284a1056e593dc1e0aa8ab11aa9a032ed8448c5218e15a4
  • 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\update4_21[F].exe
    "C:\Users\Admin\AppData\Local\Temp\update4_21[F].exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\is-D6U4C.tmp\update4_21[F].tmp
      "C:\Users\Admin\AppData\Local\Temp\is-D6U4C.tmp\update4_21[F].tmp" /SL5="$90056,1269402,54272,C:\Users\Admin\AppData\Local\Temp\update4_21[F].exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4140

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        update4_21[F].tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-D6U4C.tmp\update4_21[F].tmp
        • Size 688KB
        • SHA256 c5177fdc6031728e10141745cd69edbc91c92d14411a2dec6e8e8caa4f74ab28
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2532-0-0x000000000040D000-0x000000000040E000-memory.dmp

        memory/2532-1-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2532-15-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4140-7-0x0000000000400000-0x00000000004BC000-memory.dmp

        memory/4140-13-0x0000000000400000-0x00000000004BC000-memory.dmp

        memory/4140-14-0x0000000000400000-0x00000000004BC000-memory.dmp