Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4b2a6d44669fa6f…

MALICIOUS

PDF

45.1 KB Created: 2021-05-17 21:32:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64cd2d67aacfd92feb767fb426494ffe SHA-1: b3cd4fc5bbda3fc2591cf390a5a4c5992d7ac733 SHA-256: c4b2a6d44669fa6f6c0446ac38e7ccdb706d123de801447e46932e87c0580e1d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body and embedded URLs strongly suggest a lure to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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 https://netcdn.xyz/app/479516143/play-minecraft-free-online-no-download-game-hack In PDF document text
    • http://bogatyr.com/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/free-robux-hacks-no-verification_GM431946152.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_003_off000049ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49AD 25212 bytes
SHA-256: 49f238472e940e66db87efc8ff4d179c42e9b5f5a2f5b3e0012a49a170ba6bef
font_01_sfnt_off00008322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8322 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00008cc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC1 18624 bytes
SHA-256: de5879bc26708eaa4e1c92eaf1e42bccba815f23883936bce9a95b33e109549e

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