Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cf5e8873558f841…

MALICIOUS

PDF

37.2 KB Created: 2021-05-22 21:09:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2840891b5a0f3fb60eedf4dde0236b8e SHA-1: 05e7be664233c07b2b145252694a68b48f55ec5b SHA-256: 3cf5e8873558f84108094b8f279293a0072b45c7eb5297da4693613902420d3b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple embedded links that lead to known malicious redirectors, specifically disguised as game hacks and generators for popular titles like Minecraft and Roblox. The document body and embedded links suggest a lure to trick users into clicking through to potentially malicious websites. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a malicious redirection workflow, likely leading to further exploitation or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-windows-10-free-with-java-game-hack In PDF document text
    • https://ase-sinaloa.gob.mx/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://ase-sinaloa.gob.mx/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://ase-sinaloa.gob.mx/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://ase-sinaloa.gob.mx/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ase-sinaloa.gob.mx/images/how-to-make-a-group-on-roblox-for-free_GM431946152.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
stream_002_off000033fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33FC 25340 bytes
SHA-256: dd5f3eabeb3aa122101cdc28f11b23195515da618dc2504fbbb532aff7997a38
font_01_sfnt_off00006deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEB 18972 bytes
SHA-256: ec0d7e7957d6d3ec4a312ebe7c12434b242d64f4f861d318395950ba1ef4cb73

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