Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aed4a9a4ca99c83…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 22:31:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c4ba69358a770cfb35fd7367c0252f77 SHA-1: 038b1e3650ad142534fae91e3f2c0077ca0af8e2 SHA-256: 3aed4a9a4ca99c83906b0e5d2a24c47baa2205edff9ce323eebc073d76c377e7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, directing users to a URL that likely serves a malicious payload or leads to a phishing page. The ML classifier strongly indicated maliciousness, and the embedded URI points to a known game hack lure. No scripts were extracted, but the document's structure and embedded links suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/completed-coin-master-hack-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/hide-and-seek-extreme-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/whats-the-best-free-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-hack-roblox-in-jailbreak_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-2021-easy_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
stream_002_off00003083.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3083 22676 bytes
SHA-256: 075ac7b626b25f67dc275ec2815fd72aed7603c2c4aa329070b77ae121a29f9b
font_01_sfnt_off0000632d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632D 18688 bytes
SHA-256: d314275442e2b498f39cfd2636dfe0c4a5c9291756091703ea36191dc862be71

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