Malicious PDF — malware analysis report

Static analysis result for SHA-256 d361246d46b42d96…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 08:42:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b0e9ab2572013f6464746844b5fa0ec8 SHA-1: ce8fafc91149263ee16ccda834341aab2e9711c0 SHA-256: d361246d46b42d9694236c084bc0c2ec48d9da3b2ef5c1efcd5138df1c6f15ef
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game hacks, directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to a potentially malicious site for further exploitation. The ML classifier also flagged this PDF as malicious.

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.online/app/479516143/minecraft-bedrock-free-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.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_004_off00004e61.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E61 25076 bytes
SHA-256: 365fb27dd55a4b399823bb2715e4c31f2256c20c7b4091e5f86648346be38efd
font_01_sfnt_off00008695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8695 18268 bytes
SHA-256: 421dc37018d5e6f1467ffbccbacebf5894202cb157ac672e86022266516fa266

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