Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb58e9f249e7c596…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 07:34:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52510d1703e275670e805d788fc7aa97 SHA-1: 8adfe9b0d322f4b19b5571f3714261779846e8a9 SHA-256: eb58e9f249e7c5965b0f28ec1d8679b0cd38ae26a85ac708070cc6fe125b6f85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-roblox-jailbreak-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs reinforce this theme, suggesting a social engineering tactic to trick users into visiting potentially harmful sites.

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/how-to-hack-roblox-jailbreak-game-hack In PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/roblox-cool-free-avatars_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/ninja-zone-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/robux-hack-joining-groups-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/minecraft-svg-free_GM479516143.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_off00003231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3231 22760 bytes
SHA-256: 8a5dcd9d203ba2a2c443223a9a9144e717619cdd2535d1560f1573c5b45fa129
font_01_sfnt_off00006557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6557 19104 bytes
SHA-256: 696a7a1a31584406119b272d138aa3833d155dde635b1dee8888fecfa5e4f887

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