Malicious PDF — malware analysis report

Static analysis result for SHA-256 968ff00180805042…

MALICIOUS

PDF

33.3 KB Created: 2021-07-10 03:07:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99368c33f927d5a3670f643cc0dd7ef4 SHA-1: a04f7757e546c5b4ba8ad4e8d7eb8f172008eed0 SHA-256: 968ff00180805042ef6b1bc67756fcaa582c3f54c81dff696231708dd2fe9323
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The primary lure URL is http://netcdn.tw/app/431946152/free-robux-pastebin-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or scams.

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.tw/app/431946152/free-robux-pastebin-game-hack In PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-inspect_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-things-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/easy-cheat-codes-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/phoenix-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-promo-code-to-get-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_off00002c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C13 22104 bytes
SHA-256: 2e948f861593279dfe1d361313cf14da2886d343a719243cab1f9de9d2cb9294
font_01_sfnt_off00005d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D25 19092 bytes
SHA-256: 5bfd890d84b0c14d72a786ae590b650f833002b15fe449ee91ced07c3ea68d33

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