Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c8186c97a648f2…

MALICIOUS

PDF

39.3 KB Created: 2021-05-21 08:28:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a432d2e729f908616e905b83a6a73297 SHA-1: 258afd77d7800d7c19455e88ebf14b7e580300b0 SHA-256: 53c8186c97a648f2ad883d5a9afeca71ec05780b490ef4df70f2c3f6a876692f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures related to game hacks, such as 'Roblox Adopt Me Hack'. The document body explicitly mentions 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and includes a URL that is flagged as a malicious redirector. This indicates a phishing or scam attempt designed to lure users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/431946152/roblox-adopt-me-hack-game-hack In PDF document text
    • https://elearning.mtsn9jombang.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn9jombang.sch.id/__statics/gudangsoal/files/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn9jombang.sch.id/__statics/gudangsoal/files/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn9jombang.sch.id/__statics/gudangsoal/files/pubg-600-uc-in-pakistani-rupees_GM1330123889.pdfIn PDF document text
    • http://elearning.mtsn9jombang.sch.id/__statics/gudangsoal/files/mcpe-free-download_GM479516143.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
font_00_sfnt_off0000327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327F 24920 bytes
SHA-256: 1a89c8b76ad01ebb0a7d69b5c46510f382f1d23681ca589a034511e635644967
font_01_sfnt_off00006b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9A 3020 bytes
SHA-256: fe68e7dd75ec16521329755b617ea5475364dc8642a89da7e3928c6c925346e9
font_02_sfnt_off00007613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7613 18832 bytes
SHA-256: 4d658ccafa0b893d8d7fed2f8c747f895118d61cffd562c1959dd86f9709654a

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