Malicious PDF — malware analysis report

Static analysis result for SHA-256 8058330007d8b2a2…

MALICIOUS

PDF

36.6 KB Created: 2021-07-03 18:43:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d906e570bf79810986744b0ad762df78 SHA-1: b2ebf7652cd185325d7a4cd3df1d7d68691e156f SHA-256: 8058330007d8b2a20d69e003a9a020edfcbfe935fad82efc2305184c32cba653
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for game hacks and free generators. The embedded URL, http://netcdn.tw/app/406889139/freespincoin-masterlinkdownload-game-hack, is identified as malicious infrastructure. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful content.

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/freespincoin-masterlinkdownload-game-hack In PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-hack-2021-deutsch_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-new-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-de-ohne-handynummer_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-xith-fakename_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-assassin-free-exotic_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-roblox-accounts-2021-v3rmillion_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-be-a-wannabe-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-codes-that-r-rel_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-a-roblox-redeem-card-for-free_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-kitty-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3598 23644 bytes
SHA-256: 7fabc97cd90371c0e0a1e28e0c87c5b0e36c570d53c7f33695343c84767cc147
font_01_sfnt_off00006aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEC 18756 bytes
SHA-256: 91b8bcfb89e937aef1780bb8b0fda0e66fb6358b78b968caff2ec433e56f47be

Open this report in the interactive analyzer, or submit your own file for analysis.