Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddaafbb8a04d1ce2…

MALICIOUS

PDF

44.7 KB Created: 2021-05-16 04:08:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 737f629f4443c19c416e668b4e32dd1e SHA-1: 852f56358b90de3c671cc853ca2d7d6c45686f7f SHA-256: ddaafbb8a04d1ce22b7118fe95ecfccbb97c73990135477faffe3518a81df826
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generators' and 'game hacks'. The primary URL identified, https://netcdn.xyz/app/431946152/roblox-zone-free-robux-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to lure users to malicious sites, likely for further exploitation or malware delivery.

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 https://netcdn.xyz/app/431946152/roblox-zone-free-robux-game-hack In PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/game-toolbox_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalkhairaatternate.sch.id/__statics/gudangsoal/files/free-robux-wheel_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_off00004d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2B 28820 bytes
SHA-256: f71a258192fb118b7e4e7d3cbd8dbfaf7ccbe23196e9b6fbd8d76c88f3cac443
font_01_sfnt_off00008d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D04 18180 bytes
SHA-256: fa0bfd9229dff732b79349aec0b82eb394b94074e398d1bd7575aad3963e16a1

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