Malicious PDF — malware analysis report

Static analysis result for SHA-256 dedd16d9296719f4…

MALICIOUS

PDF

47.7 KB Created: 2021-06-03 22:18:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bed451f0953e9959995bf966067958a3 SHA-1: 13e22e4a73c959ad0c14124d6383b48e6bd88563 SHA-256: dedd16d9296719f45241973c2c77e437b6ac3bd3e348227c55ca326155e8c548
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 0.9769

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-mod-menu-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54F9 25952 bytes
SHA-256: b4a8cdc9e77c7e267d213d70e2d737f2e913e1311ebc6ab9288c7d23b580bd9c
font_01_sfnt_off00008eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAA 2940 bytes
SHA-256: ae8acc7f13e86db3aed98d7dfb73e70e16f4dedb45e9f0467460b76f54e1a1bb
font_02_sfnt_off000098b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98B9 18024 bytes
SHA-256: 957300d4696abddc3627e2ba98bcf241473f16d11eeddf827e6088df3a899906

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