Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ee32dddedb61cf…

MALICIOUS

PDF

32.5 KB Created: 2021-07-19 22:20:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9c257e8f80d4e1478dcc51d8ef80d43b SHA-1: d9bd486391e83ff6bd32e8af7d26eec3eeeb91bb SHA-256: 58ee32dddedb61cfa09539af836cd92517f17aea289db2fc2deeb2eeba858fb3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure of 'Free Robux Codes 2021' and 'game hack' to entice users to click on embedded links. The primary link, http://netcdn.tw/app/431946152/free-robux-codes-2021-game-hack, is likely a redirector to a malicious site. While no scripts were explicitly extracted, the PDF structure and heuristics indicate it's designed to lead users to potentially harmful content, aligning with a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-codes-2021-game-hack PDF link annotation
    • https://d-fankhauser-metallbau.ch/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://d-fankhauser-metallbau.ch/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A38 22172 bytes
SHA-256: 42d2c7f22b4da4dd4c6065a2d8797bc35286a4fae50c71669ea217cfc1542905
font_01_sfnt_off00005b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4C 18776 bytes
SHA-256: 86719edcafa38007f3fc56311acd0ad5bd2c3683937e8590d35305e3fc241c35

Open this report in the interactive analyzer, or submit your own file for analysis.