Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c25f6ad4c9b240…

MALICIOUS

PDF

43.8 KB Created: 2021-05-12 04:04:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 19014449678ec0c31977c5b6cf1ffc0f SHA-1: 749c34253ffdd7ae267194574029b11a4d5f5cc9 SHA-256: 70c25f6ad4c9b2407be49ebab3898f154d3e50d84f7fc75d49556a7efff84df6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the embedded URLs and the nature of the lures suggest an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/coin-master-free-spins-a2z-help-game-hack In PDF document text
    • http://lib.kesdammedan.ac.id/repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/easypoints-gg-roblox_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_off0000489e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x489E 23844 bytes
SHA-256: d0e224dec12b0573b63310a8066bd5e434f6bded503cce3c22a7db0e1d6281c4
font_01_sfnt_off00007eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEC 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off000088d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D7 18168 bytes
SHA-256: a5884a39bf45b42a5821e2aa54ec8691fbc2d69a0c3221e4e545f5cdbb5ba5a1

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