Malicious PDF — malware analysis report

Static analysis result for SHA-256 f46f86b1c50fd9c4…

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 20:01:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9f2a32c7f381d245482cc3c8b7f6a267 SHA-1: 8e516f08761c7dd2ede239634d6950a374c02a24 SHA-256: f46f86b1c50fd9c46509ffe525136bccb6fb8892810d2ed0020db13aa2fbb217
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.tw/app/431946152/how-to-get-free-roblox-hair-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-the-robux-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/skater-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/promo-codes-to-get-free-stuff-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-vh2-gun-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-roblox-script_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/games-for-free-like-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-jailbreak-hack-2021-noclip_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/mcpe-master-free-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
font_00_sfnt_off000032c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C8 23140 bytes
SHA-256: d95790af8f4e7ac5965a7a4e90d95faf70967168180b4981d7de060d115056e4
font_01_sfnt_off00006700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6700 19036 bytes
SHA-256: cc2dc3622c965c70d72cdfd1ed59aa0e9fcc0730126f0b75e9cb8cf9c31a272b