Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c0fef5bdad02870…

MALICIOUS

PDF

33.3 KB Created: 2021-07-20 04:56:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 881486ae67c8790494a5dd852cdd177f SHA-1: e7920ef6e77a3658e13ee07e3503262bf7defcd8 SHA-256: 3c0fef5bdad02870f1b04b944d16eacc26def5f0ab07e73c596a1f8a6440db1a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures for popular games. The primary link, http://netcdn.tw/app/479516143/minecraft-bedrock-free-game-hack, is identified as malicious. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for malware distribution or phishing. No scripts were extracted, but the presence of multiple malicious URLs and the ML classifier output strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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-bedrock-free-game-hack In PDF document text
    • http://www.apocalissedigesucristo.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.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_off00002de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE5 22568 bytes
SHA-256: eefd0f5234ab469f655c8dd945f51d7a132322cf68297f0294121c4d955d9736
font_01_sfnt_off00006052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6052 18268 bytes
SHA-256: 421dc37018d5e6f1467ffbccbacebf5894202cb157ac672e86022266516fa266

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