Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecc820444f8b6062…

MALICIOUS

PDF

35.8 KB Created: 2021-05-21 19:06:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e60cfa0834cf5b0145fcb96c6f1d75c SHA-1: 1991f8810c5f042ff3f54fab86f51716226a1685 SHA-256: ecc820444f8b60620a0d04ae13cd35e2f835559eea2e8879e6f11de39df4118b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and generators. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure of free game hacks strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/479516143/minecraft-creative-mode-free-game-hack In PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/mcpe_GM479516143.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/freer-tiktok_GM835599320.pdfIn PDF document text
    • https://www.elearning2020.mtsn1kotaserang.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.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_off00003464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3464 24444 bytes
SHA-256: ba9c027d82349c5d0336c02a5ff2d3993f20b7344f87a16f87556a7a1177708d
font_01_sfnt_off00006b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B93 18000 bytes
SHA-256: f6a8cbfed7e544a7ed90cd1995fc8c45102f25219f8fae40911eda120a1a4630

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