Overview

overview

4

Static

static

4

AntarctidaBuilder.exe

windows10-2004-x64

3

AntarctidaBuilder.exe

windows11-ltsc_2024-x64

3

costura.dll

windows10-2004-x64

1

costura.dll

windows11-ltsc_2024-x64

1

costura.pdb

windows10-2004-x64

3

costura.pdb

windows11-ltsc_2024-x64

3

dnlib.dll

windows10-2004-x64

1

dnlib.dll

windows11-ltsc_2024-x64

1

materialskin.dll

windows10-2004-x64

1

materialskin.dll

windows11-ltsc_2024-x64

1

obfuscator.dll

windows10-2004-x64

1

obfuscator.dll

windows11-ltsc_2024-x64

1

rjcodeadva...ls.dll

windows10-2004-x64

1

rjcodeadva...ls.dll

windows11-ltsc_2024-x64

1

Resubmissions

09/08/2026, 17:13

260809-vrv9asselb

09/08/2026, 17:11

260809-vqbs9saq214

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 17:11

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    costura.dll
  • Size 5KB
  • Sample260809-vqbs9saq21
  • SHA256 7a9e767ad824afa2c1b0aed513fe1cf2b8dac6d40f24e7c4075af32b1cf23a20
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
1/10

Malware Config

Signatures

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\costura.dll,#1
    1⤵
      PID:3224

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads