Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aa5e8eb35bbb2cf…

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 07:20:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 03e3f9a7b5511c12128b918b83bf3594 SHA-1: d41cd03426f064ab048b3f644e51625b7bd4de24 SHA-256: 8aa5e8eb35bbb2cfa85676701517feb984f73cf80fcf63a309662cfa14786c38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to a phishing or malware download site, attempting to trick the user into believing they are accessing game-related cheats or generators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/431946152/free-roblox-accounts-game-hack In PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/getrobux-info_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/tiktok-free-view-iphone-5c_GM835599320.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_off00004ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF8 31292 bytes
SHA-256: 50c9024a868eb2c0dd38ea8010d1436dada05f85c42ce8b2e8e15e1558660aab
font_01_sfnt_off00009746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9746 18192 bytes
SHA-256: 9af8fc399b7603ded65a47756b8d28ab9f279dafa7c0fe2cd6f7ecbc085cbebe

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