Malicious PDF — malware analysis report

Static analysis result for SHA-256 b33b6f07c6a994db…

MALICIOUS

PDF

32.2 KB Created: 2021-07-19 16:50:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fa8113ea6a33d4fff5a0f12759319733 SHA-1: 8521eaa4c84c95f44b478cf8901f13b346bbbdce SHA-256: b33b6f07c6a994db377a9f5b966c2f8274dfa31e50d8132cc1db55d192daf702
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free Minecraft Bedrock" generator, directing users to a malicious URL. This is a common social engineering tactic to trick users into downloading potentially unwanted or malicious software. The ML classifier strongly indicated maliciousness, and the embedded URLs suggest a phishing or scam attempt.

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/479516143/free-minecraft-bedrock-game-hack PDF link annotation
    • https://newenglandafs.com/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://newenglandafs.com/images/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/minecraft-hacker-skin_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_off00002bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC3 21848 bytes
SHA-256: 11766137518a2cfde03a8b30269c4fcec041e34baee2b0467cd540d5a49458bc
font_01_sfnt_off00005beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEB 18268 bytes
SHA-256: d34bffa2112548f8729f10b9022dbaea9618b038b2dadf4195d892bf0ac95b27

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