Malicious PDF — malware analysis report

Static analysis result for SHA-256 f058dc986bbafefb…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 15:05:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aab35a6c1e232f55b9e99402ee137266 SHA-1: 574c91a888a5581c6de73fbf334c5a5ab93f2372 SHA-256: f058dc986bbafefb32a642891fc82e3c6f972ffa197c5a2750154522509c0875
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed as a credential phishing lure, impersonating Apple and using a "Roblox Mobile Hack" theme to entice users. It contains multiple embedded URLs, including a primary malicious redirector at https://netcdn.xyz/app/431946152/roblox-mobile-hack-game-hack, which is likely intended to lead to a further exploit or phishing page. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-mobile-hack-game-hack.
  • 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 https://netcdn.xyz/app/431946152/roblox-mobile-hack-game-hack In PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kulonprogo.sch.id/__statics/gudangsoal/files/get-free-minecraft-account_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
stream_003_off00004c81.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C81 24976 bytes
SHA-256: c788d007b8d882262843a8e3cbcb0f4981bdd80b772f387ab9c69249623ecd69
font_01_sfnt_off00008668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8668 18500 bytes
SHA-256: e5e44b7d88d65c0aa39187413bdce35fa7eb26b841b7c8af9c826d312b99eefc

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