Malicious PDF — malware analysis report

Static analysis result for SHA-256 33bab1a658a0c992…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 08:55:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c2a482105f0b0810da714a70f6b81da5 SHA-1: 97155651e3899615cf6257c9538338a013e77e07 SHA-256: 33bab1a658a0c9926c52b1cf4edbff1e6937bafcf59bfdf5287ba08ec5b4f406
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector for 'game hacks' and 'free generators'. The document body, though partially corrupted, suggests a lure related to obtaining free game content. The presence of a download button heuristic further supports the malicious intent of directing users to external, potentially harmful, resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/how-to-get-minecraft-for-free-on-iphone-2021-game-hack In PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/robux-offers_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/gamehunters-club-coin-master_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
stream_004_off0000547c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x547C 24564 bytes
SHA-256: a10720a06047359e0cfcc20ecadf4a101dcd27af855135226a18f8f3a10081cc
font_01_sfnt_off00008bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD5 18620 bytes
SHA-256: 9dfe6830e4eff682daeb487d834da197714a5bc305fe7f1b132f92f4a863de8b

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