Malicious PDF — malware analysis report

Static analysis result for SHA-256 050851ed2fdf3c47…

MALICIOUS

PDF

34.8 KB Created: 2021-07-01 10:18:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: bde62c58f764d569aad9ab52c15da1f7 SHA-1: 74472f678547cb272c528bbee7eb4a3090b35ba9 SHA-256: 050851ed2fdf3c4778c795f00e457446ba8ac2b809efb750100d5fd231fe5fa0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically related to game hacks and generators. The document body and extracted URLs reinforce this theme, pointing to a lure designed to entice users to click through to potentially harmful content. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/comment-hacker-roblox-accesoir-2021-game-hack In PDF document text
    • http://digilib.iailm.ac.id/repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/royale-high-roblox-outfit-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-hack-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/can-pokemon-go-free-evolve-after-trade_GM1094591345.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-inspect-element_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-studio-hack-message_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-shirts-free-girl_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-toys-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/best-game-to-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3025 22280 bytes
SHA-256: 91be8324ff8dd8189461da27d83487c2be0e6d2bbd77555bf12fc026f948ae8d
font_01_sfnt_off00006154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6154 19544 bytes
SHA-256: bc2dcc2385d36b4d978159a91318be20c1355c8bfe5299fb0c63d2ad4e26f30a

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