Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c8a11dacffcf27…

MALICIOUS

PDF

33.9 KB Created: 2021-06-27 07:46:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3bf842fd2b1c85513872345d19887163 SHA-1: f4a9aafc7cfbddcaff3a64e7e90fe6c1937139a7 SHA-256: d0c8a11dacffcf27253d1a5467fbbbf0ab0adfa0adcfa49f898a8ebe739c7644
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary lure appears to be a 'Roblox Skyscraper Tycoon Hack Script'. The document's structure and embedded URLs strongly suggest it is designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery. No scripts were extracted, but the PDF's nature points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/roblox-skyscraper-tycoon-hack-script-pastebin-game-hack In PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/gaming-cheatscom-roblox-us_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/roblox-install-free_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-v3m_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/mc-update_GM479516143.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • https://elearning.min1kebumen.sch.id/__statics/gudangsoal/files/robux-gratis_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_off00002d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D16 22308 bytes
SHA-256: 6dd2615cb43ca1a95f9f8ca258840e9d4546295ff53b652b05d8e5cdc952e6fa
font_01_sfnt_off00005ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBC 19388 bytes
SHA-256: 67784368b19451eb34fac28848543884d177ed03df2d8d27bda2642d115615b6

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