Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd2a43f5c90563e…

MALICIOUS

PDF

44.8 KB Created: 2021-06-10 21:45:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 240f3e4289e7191210d912d027b93f7a SHA-1: f3459da3470e42854abcdca8a1877ed78b62cc76 SHA-256: ddd2a43f5c90563e47d74a5ebd92cf8b79ff578ac9d748296d017fb6c5d7063a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a 'free generator / game hack'. The primary lure URL is https://netcdn.tw/app/431946152/roblox-how-to-get-free-robux-no-download-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-how-to-get-free-robux-no-download-game-hack In PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/account-being-hacked-on-roblox-with-2-step_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/roblox-com-mobile-hacks-for-free_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-get-free-stuff-in-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-obc-roblox-codes_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-promo-code-generator-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/donttazemebro-roblox-person-hes-a-hacker_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/wall-hack-csgo-roblox_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/gladiator-simulator-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-get-2021-robux_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-get-roblox-tickets-hack_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/codes-free-robux-on-bloxland-youtube_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_off00005298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5298 24780 bytes
SHA-256: 81626469453b93b46893594ccedb3d6a63706a7e8e008cf756a80e34a5e1e794
font_01_sfnt_off00008a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A75 18924 bytes
SHA-256: 084310f2b6730455e47b906d20bf7921d41c649ab1a1923f59a13b8ba926a0cd

Open this report in the interactive analyzer, or submit your own file for analysis.