Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bf05c34765ee729…

MALICIOUS

PDF

44.8 KB Created: 2021-06-09 13:18:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 84b9bf874e376ea0fbca795a2f2836de SHA-1: e8f362deebdd747da72666dc9d76fb6f3703d35f SHA-256: 3bf05c34765ee729a50b83de6ea8a57238734f69fc1dd99d3e236bdabfe5c8b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, masquerading as game hacks and generators. The primary lure, 'work-at-pizza-place-roblox-hack-game-hack', directs users to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious intent to redirect users to potentially harmful content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/work-at-pizza-place-roblox-hack-game-hack PDF link annotation
    • http://reggieslockandkey.com/images/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/blue-hacks-team-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/fly-hacks-script-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/pubg-uc-whatsapp-group_GM1330123889.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-fly-hack-in-roblox-lumber-tycoon_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/best-free-minecraft-hacked-client_GM479516143.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_off0000544a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544A 23920 bytes
SHA-256: 476654e8ec0955358834e44513150bd5da81049bc7311cc18172e42eb53a02eb
font_01_sfnt_off00008a9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9A 18840 bytes
SHA-256: 3c705695b9d051293ea53428b638531c5b5eda651984367b0821e238e13a88e4

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