Malicious PDF — malware analysis report

Static analysis result for SHA-256 443d77428659af2a…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 09:29:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9cf917ac7c4b887248307a5c12c3cea4 SHA-1: 85e6a0c51cbbea44159b2a430c1e3124f6bcbd0b SHA-256: 443d77428659af2a08985052063b7eb782aecd2c8026a838e3566407f89a86c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The primary lure URL is http://netcdn.co/app/431946152/i-want-free-robux-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering attempt to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

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/i-want-free-robux-game-hack In PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/freerubux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-hack-script-executrer_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/hack-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/autospin-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/pokemon-go-free-yourself_GM1094591345.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/roblox-script-inector-free_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-money-and-spins-coin-master_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_off00002f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F29 22436 bytes
SHA-256: 2baa9a91594a877259d8f36a96b91d9acd5bdf224ff1d9585293b7425918b2a5
font_01_sfnt_off0000616d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616D 19020 bytes
SHA-256: eae9f8d08779fd2c5c3bd60eb75d4d29ea8b13925606d89c315f12075b4b7800

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