Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbc2584971ecdf42…

MALICIOUS

PDF

36.8 KB Created: 2021-07-09 01:14:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e56de1825f7b41d452305906ab1cccd SHA-1: 6b431155c3960b3286cdc7b135397279555937ea SHA-256: fbc2584971ecdf421112044b71319ca24841dacba45853fb7de2a70185d29982
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for linking to a malicious redirector, specifically advertising a 'game hack'. The document body and embedded URLs reinforce this lure, pointing to a URL associated with free game currency and hacks. This suggests the PDF is designed to trick users into visiting a malicious site, likely to download further malware or engage in phishing.

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.tw/app/406889139/coin-master-free-coins-link-2021-deutsch-game-hack In PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/goku-ui-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-hack-2021-free_GM431946152.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/hack-super-simon-says-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/daily-free-spin-coin-master-link_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
font_00_sfnt_off0000379b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x379B 22896 bytes
SHA-256: 01e605547fb71a24c2f68792ef8d6bfb2aa9d5e26422d50a6c73eb7da92d76cf
font_01_sfnt_off00006b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 19044 bytes
SHA-256: 2844f756ddbcc4a04a8e584fba3bd9ee643c4403cf9fe90d32670bab9c0c39f1

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