Malicious PDF — malware analysis report

Static analysis result for SHA-256 089736326691f6fb…

MALICIOUS

PDF

33.0 KB Created: 2021-07-06 18:37:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b418b1a571c985fc354fc68b9954ff7b SHA-1: 1f90affbf2444e8d466afff2eab4abced4cca3f2 SHA-256: 089736326691f6fb1f7f85ea7fdd3a7eb5a5d9599fb28fe38bb3d82fa8fa522c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free in-game currency for popular games. The primary link, http://netcdn.tw/app/431946152/how-to-get-roebucks-in-roblox-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/431946152/how-to-get-roebucks-in-roblox-game-hack In PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-for-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/all-free-offsale-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-install-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/admin-vs-hacker-roblox-1_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-speed-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/gain-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/wix-site-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/make-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
font_00_sfnt_off00002c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C92 21432 bytes
SHA-256: 71835e5a63be08fe28528cccc917eaf1071c03d60ccc7478d2c06cd513402c47
font_01_sfnt_off00005b87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B87 19064 bytes
SHA-256: a591e93d7980afb426909228b11a5c9791bdb8b761f0b1e4bbce93659212790b

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