Malicious PDF — malware analysis report

Static analysis result for SHA-256 573680473e924cc7…

MALICIOUS

PDF

34.6 KB Created: 2021-07-23 18:45:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 396e50d37b3b972f0bdeb950e85530e3 SHA-1: 24d7e44846fced6c2e60a9edb49a50f43316ab03 SHA-256: 573680473e924cc7a7bfe984bb806ba61056c608cb95402d7f18329a38052281
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting a 'free generator / game hack'. The document body text and heuristics indicate a lure for game-related cheats or downloads, which is a common social engineering tactic. No scripts were extracted, but the presence of malicious redirectors and the lure strongly suggest the intent is to lead the user to a malicious site for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/479516143/minecraft-free-download-windows-10-game-hack In PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off0000312b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312B 22680 bytes
SHA-256: 7ab59e6b029fffbb153d3f51c15eddcda36dd67a3a666e44dc50ee8b1ac8f661
font_01_sfnt_off000063f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F2 18764 bytes
SHA-256: 1024eac42dda9887ab3e6b3a3052baf0f02eb021d29d3096c75228bb34fedc86

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