Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade02a365c2a606d…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 14:42:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 67852727bf504ada73940a04e0e7ddd3 SHA-1: 01d67f6766423765371cd1f3c2a1d39d3e4225cc SHA-256: ade02a365c2a606dc5d15fccad6bd7772fc3313ae75250fab45320b0f6a172df
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links disguised as offers for free game currency and hacks, specifically targeting popular games like Roblox and Minecraft. The primary malicious link, http://netcdn.co/app/431946152/roblox-free-robux-hack-2021-game-hack, is identified as a known malicious redirector. While no scripts were explicitly extracted, the structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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-free-robux-hack-2021-game-hack In PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-gfx-maker-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/hack-murder-mystery-roblox-to-download_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/roblox-tablet-hack_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-do-you-get-free-roblox-money_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_off00003170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3170 22100 bytes
SHA-256: 186ed7a959b0e87591bd86635ae4cb7aeb0d4cbee1f073892219c6d5c3dece68
font_01_sfnt_off0000626d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626D 19360 bytes
SHA-256: d7bc0ca4f49ead35c3fb11fd2336bab3d2bcb3672c72bc9ca3d1017e663b06e6

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