Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 22:40

General

  • Target
    Size label (Heat Transfer) style 1178875.xlsx.js
  • Size 2.6MB
  • Sample260930-2ln2csy17p
  • SHA256 7efba299adeb2b2bd73ce0f2542e30e36b5719d13c54011b4b3959efd5699952
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 217.60.76.250:6606

  • 217.60.76.250:7707

  • 217.60.76.250:8808

Mutex
  • ZcMyazpufH2A

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound 2 IoCs

    Network activity triggered a Suricata alert

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Modifies registry class 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Size label (Heat Transfer) style 1178875.xlsx.js"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Users\Admin\Documents\UIUEPBXLWCBXZTKG.exe
      "C:\Users\Admin\Documents\UIUEPBXLWCBXZTKG.exe" C:\Users\Admin\Documents\GKTZXBCWLXBPEUIU
      2⤵
      • Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4320
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3180

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          GKTZXBCWLXBPEUIU

          • Path C:\Users\Admin\Documents\GKTZXBCWLXBPEUIU
          • Size 289KB
          • SHA256 b0a6c8248657822ee8d59c4384f1925cbaccbd873a15743a671f074849ed64bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          UIUEPBXLWCBXZTKG.exe

          • Path C:\Users\Admin\Documents\UIUEPBXLWCBXZTKG.exe
          • Size 499KB
          • SHA256 d447a06cba8d3dbe80e09d73dd64576836b258961ee0d3ba56cf26cea7962b49
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4320-11-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-23-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-72-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-71-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-70-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-69-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-68-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-67-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-65-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-64-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-63-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-62-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-61-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-60-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-59-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-57-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-56-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-55-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-54-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-53-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-52-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-51-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-50-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-49-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-48-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-47-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-46-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-45-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-44-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-43-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-42-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-41-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-40-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-39-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-38-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-37-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-36-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-35-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-34-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-31-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-30-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-29-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-28-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-27-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-26-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-25-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-24-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-19-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-21-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-20-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-18-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-66-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-58-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-33-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-32-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-12-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-22-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-17-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-16-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-15-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-14-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-13-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-10-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/4320-1208-0x0000000074A42000-0x0000000074A43000-memory.dmp

          memory/4320-1209-0x0000000027220000-0x0000000027232000-memory.dmp

          memory/4320-1210-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4320-1211-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4320-1212-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4320-1214-0x0000000074A42000-0x0000000074A43000-memory.dmp

          memory/4320-1215-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4320-1218-0x000000002A470000-0x000000002A50C000-memory.dmp

          memory/4320-1219-0x000000002A510000-0x000000002AACA000-memory.dmp

          memory/4320-1220-0x000000002AAD0000-0x000000002AB36000-memory.dmp

          memory/4320-1221-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4320-1222-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/5096-8-0x000001F629930000-0x000001F629D4E000-memory.dmp