Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/05/2026, 14:41

General

  • Target
    2026-05-11_163062e6a47a79e908cbf62aa696bdcf_akira.exe
  • Size 1.4MB
  • Sample260511-r2sdlsfz7p
  • SHA256 3334a80487301db6558d52734a98618a5760ff84ad178873aed91a32d5149645
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-11_163062e6a47a79e908cbf62aa696bdcf_akira.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-11_163062e6a47a79e908cbf62aa696bdcf_akira.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:544
    • C:\Users\Admin\AppData\Local\Temp\sihost5487\sihost5487.exe
      "C:\Users\Admin\AppData\Local\Temp\sihost5487\sihost5487.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:5424

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        sihost5487.exe

        • Path C:\Users\Admin\AppData\Local\Temp\sihost5487\sihost5487.exe
        • Size 1.0MB
        • SHA256 dd38753a3d334187ceff5bf8fafc816bcc8de47e12cf8c6dcecc9b7b82f20e2c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/544-3-0x00007FF649BA0000-0x00007FF649C03000-memory.dmp

        memory/5424-4-0x00007FF742C00000-0x00007FF742D10000-memory.dmp

        memory/5424-21-0x00007FF742C00000-0x00007FF742D10000-memory.dmp