Malicious PDF — malware analysis report

Static analysis result for SHA-256 c213afff85ac3b20…

MALICIOUS

PDF

46.1 KB Created: 2021-05-14 02:49:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e9c39aa09f29e6b363f993f27ac125d1 SHA-1: 27c0d8ef2c5ea89426596897dde885823d945253 SHA-256: c213afff85ac3b2074dc412302d0d7d60e7d7a664e03609dbcd91b35ac880547
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a 'free generator' or 'game hack' to entice users. The document's structure and embedded URLs strongly suggest a phishing or malware distribution attempt. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or downloader attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/free-coin-master-spins-link-game-hack In PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/bit-ly-coin-master-hack_GM406889139.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_off00004ba1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA1 25308 bytes
SHA-256: eff0f3a563e1a3a378dff6e212ff13f1bc9964781e7e18f6d1213cb41063fda7
font_01_sfnt_off00008496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8496 4084 bytes
SHA-256: df85173feea72dc2f2189124c35b140faf44ef7a36f3496b492965e474480a3b
font_02_sfnt_off00009254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9254 18056 bytes
SHA-256: 3a13f115a00b8b7b194300b8b076c3bf70984f89fe406390bc378e2507b22e35

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