Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    07/05/2026, 17:13

General

  • Target
    Insidious.exe
  • Size 274KB
  • Sample260507-vrvb1aby2p
  • SHA256 214612d7548b6b3d3d27077a2b738c26b66d6c3d5a0e7029a354e8e5d0d473ee
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: 44Caliber

    An open source infostealer written in C#.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Insidious.exe
    "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1108

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Process.txt

        • Path C:\Users\Admin\AppData\Local\44\Process.txt
        • Size 771B
        • SHA256 16dcb4f238a09687066b4335033c9ffbb6e1e6814a0e6310d2539fc2e075e1b7
        • MD5 SHA1 SHA512 TLSH

        Process.txt

        • Path C:\Users\Admin\AppData\Local\44\Process.txt
        • Size 1KB
        • SHA256 320f63f111317ad89f2f8b5bdd87880f41e6160bd2f1643f8765c5066d529bd1
        • MD5 SHA1 SHA512 TLSH

        memory/1108-0-0x0000027C5A800000-0x0000027C5A84A000-memory.dmp

        memory/1108-1-0x0000027C5C870000-0x0000027C5C880000-memory.dmp

        memory/1108-104-0x0000027C5AC80000-0x0000027C5AC88000-memory.dmp

        memory/1108-105-0x0000027C5ACB0000-0x0000027C5ACC2000-memory.dmp

        memory/1108-103-0x0000027C5AC60000-0x0000027C5AC6C000-memory.dmp