Malicious PDF — malware analysis report

Static analysis result for SHA-256 8758fbad425de950…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 06:07:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48d63fdbe2e2c1a3ad827d78523acff0 SHA-1: 3253ce1aeac121195215d4221d3414c1b950628a SHA-256: 8758fbad425de95092f8f12cb7ba6e0650cd05dd59014edbe1763f071813e092
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, specifically targeting Roblox users. The document body and embedded URLs suggest a social engineering tactic to trick users into downloading potentially malicious software disguised as game cheats. No scripts were extracted, but the presence of malicious links and redirectors indicates a high likelihood of leading the user to a malware download or phishing site.

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 http://netcdn.co/app/431946152/roblox-kick-off-hack-download-game-hack In PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-easy-fast-ligit_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-konsol_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-games-are-bad_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-robux-hack-2021-october_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-prison-life-hack-download-2021-mobile_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-robux-hack-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/best-roblox-hack-api_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-use-cheat-engine-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-roblox-ios-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/como-hackear-una-cuenta-de-roblox-a-alguien_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-cheat-exploit-juillet-2021-for-vehicule-simulator_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/redeem-robux-card-free_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-money-hack-amd-city_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/get-free-dominus-roblox_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_off00003102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3102 23048 bytes
SHA-256: 0ae6a62968323d70a2a50955869af3816a10b9a5528d5f74b75d9c0cc92aff57
font_01_sfnt_off000064dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DD 19284 bytes
SHA-256: 83d35f75cd1e919c07e7e7852e2c16d3ed3d98441cea02d601ffa70d5b26a6c2

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