Malicious PDF — malware analysis report

Static analysis result for SHA-256 def12c5ac14b23ea…

MALICIOUS

PDF

43.4 KB Created: 2021-05-14 00:16:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3a622b72ac8577b1c3742ce967104b96 SHA-1: 67c2d41cd21e80697d1babe17957f45fbde55968 SHA-256: def12c5ac14b23ea77c1b0858f2cbb1c8db130c67cc2604f5764ea4d3d623710
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering game hacks and free currency, indicating a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/how-to-make-robux-game-hack In PDF document text
    • http://italymania.ru/images/optifine-pe_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/easy-how-to-get-free-robux_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
stream_003_off00004ce2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE2 25032 bytes
SHA-256: ec511af7f1d9751b831dc2a3e0ae1ed9025f324adb735222fe511c24ff4e2f3d
font_01_sfnt_off0000864c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864C 18608 bytes
SHA-256: 3dd73e0023b9356418caa2c75ff68ce94dd4c4aa5ce9e6a50a7e0739e44ba7f5