Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba2428d49dd5dd8…

MALICIOUS

PDF

38.6 KB Created: 2021-05-15 12:37:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b44ffea8dfa507aeaac99a45a03f3326 SHA-1: cd35d5d3d72dc55b74518b86fa01d2bc85f3a5f7 SHA-256: 2ba2428d49dd5dd81462778b88ea23aa7c61e349e4ce91b24e4671e82113f2ed
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a 'free generator / game hack' for Minecraft. The document body also contains explicit calls to action like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. While no scripts were extracted, the PDF structure and embedded links strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/how-to-get-minecraft-java-edition-for-free-game-hack In 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_off000035c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35C8 29176 bytes
SHA-256: 82d9340ab37bcae30125829011242491bf09e45f4456f6015d4e27d8403b00cb
font_01_sfnt_off000075c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C5 18328 bytes
SHA-256: a790f51109e75a7469d42ca78e2bb2ee6ca1fa0985c1c579ea7802a52011e373

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