Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db98ddec48a5c36…

MALICIOUS

PDF

35.7 KB Created: 2021-06-18 09:15:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bc4834cf7174dcb51fb1eef92086620b SHA-1: 10e9e037263a490f0d7726d9ff954b5026633e8a SHA-256: 2db98ddec48a5c36f4bcd95a07bfc96f1f28a37f9bfec9cd602688ff371a8044
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/roblox-the-dump-work-at-a-pizza-place-money-hacks-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-reddit-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/rewards-robux-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hack-v6-5-free-download_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-shirts-roblox-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-legel-robux_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_off00003072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3072 22456 bytes
SHA-256: e14bcf0f86afd848acaae948df0ad0c03325be11f20f10346be0c25a5a6a7dd3
font_01_sfnt_off00006249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6249 20600 bytes
SHA-256: 5e8e2ca6c5c3e1bf8aa9ad7111f085697c6fc546ec00d2c64099ae20baaa4e9c

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