Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ff92664abba049…

MALICIOUS

PDF

42.1 KB Created: 2021-04-25 12:08:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a3e991428d42d453f4f40d3f6e5b85a SHA-1: e8ebb8f09059c6b4b6256b3fc2bcd5fa459a5cc7 SHA-256: 14ff92664abba049f0c0e06f846918a1ae4da9448731d516ba0f153a4b65c389
160 Risk Score

Malware Insights

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

The PDF contains multiple links to malicious redirectors, specifically advertising a 'Roblox Vehicle Simulator Hack Download'. The presence of a visual download button and the ML classifier's high confidence score further support its malicious nature. Although no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest it's designed to lead the user to download potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/roblox-vehicle-simulator-hack-download-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/free-account-roblox-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-youtube.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-hack-no-generator.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coolest-free-roblox-characters.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-admin-house-hack-kohls-admin-house.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-speed-hack-2021-may.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-food-tycoon-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/robloxcity-robux-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-1-million-robux-hack-by-inspecting-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/www-roblox-games-free-com.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_off000041d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41D7 26724 bytes
SHA-256: 0a3496556f8fd9a5219db6fdea918fdf9aa5957e8e4d62a89a54d5c02c1a4846
font_01_sfnt_off00007eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECA 19612 bytes
SHA-256: 47a6be26bcb911b0eed9344bd6c209bb97ec8a5318c2b983985b6833771c5080