Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3833e22bf65df06…

MALICIOUS

PDF

41.0 KB Created: 2021-05-17 01:55:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d37ab2ad46a53bb6a9d70ebe4356e090 SHA-1: d713080d5697e5a7682974c653c098dde75a3fec SHA-256: d3833e22bf65df065d1f7d761b666633b939caf594bc9633ada4115f751f2d96
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free generators'. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware downloads or credential harvesting. The presence of embedded URLs and the nature of the lures indicate a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-to-get-minecraft-for-free-on-mac-game-hack In PDF document text
    • http://moskewicz.com/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://moskewicz.com/images/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://moskewicz.com/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://moskewicz.com/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://moskewicz.com/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://moskewicz.com/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://education.minecraftIn 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_003_off00004786.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4786 24668 bytes
SHA-256: e7adac4de70b23cf7febfc94f1690d671e8b61ef457aef1d75cd93e04b4ca280
font_01_sfnt_off00007f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F41 17872 bytes
SHA-256: b6208a51cd80fab2e9318da305006c0e70657a6f065b62408d4ccaae69eb5aa0

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