Analysis

  • max time kernel
    30s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    10-01-2023 00:09

General

  • Target

    rswin.exe

  • Size

    5.6MB

  • MD5

    59ff6641dea3e3d3e2e6abd3e1ccb357

  • SHA1

    533f88a140383aaaf735b62d550b02bb2705db42

  • SHA256

    303bc7a7372b58fcf86cec6e3f64c68ae8d0d4005ba456f1a3d083ad554fe6ef

  • SHA512

    58b10df383b6ecf8dfcd8e5e23b82b88e61af34ae2b2eb6607423858ad43ef5c8f82c7c882ca63b10fd60f62b85dc18a213857598bbf7bf82c71528a4eb8591b

  • SSDEEP

    49152:ucLMXimdb4cv+oUX63PWbo1OI83xGXgn5KnK8ICuasCDZ+X6vR7e73UK56xmDpfY:PEiKisj8EjIhW8Yp4oTjZ+

Malware Config

Signatures

  • Luca Stealer

    Info stealer written in Rust first seen in July 2022.

  • Reads user/profile data of web browsers 2 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rswin.exe
    "C:\Users\Admin\AppData\Local\Temp\rswin.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1144

Network

MITRE ATT&CK Enterprise v6

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Downloads