Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a73630551eeee86…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 07:01:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a2a3b18d9f11799f8aa87b275c02930 SHA-1: 0b5d172a4a15a7dc3849d12f9e8c6c4ddcaaa17a SHA-256: 1a73630551eeee860e7a9167bbe160b5424025c93a02c663c884238f1dfd8a02
200 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators, impersonating the Facebook brand to trick users into clicking a malicious link. The link redirects to infrastructure known for hosting malicious content and is part of a credential phishing attempt. The document body contains obfuscated text and multiple URLs pointing to potentially malicious or phishing-related content.

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/how-to-get-free-robux-without-doing-anything-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/how-to-get-free-robux-without-doing-anything-game-hack In PDF document text
    • https://proviant.kz/images/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/hack-coin-master-download_GM406889139.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_off00004bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD7 24904 bytes
SHA-256: ebdb165e42a0993d9c86e14ce92d789389cb5223f400f10a129ac27442b9f2ce
font_01_sfnt_off00008557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8557 19400 bytes
SHA-256: 843e7c6de0628ecb74dfde19cdfb212261a67f0d6d996bc16e2547f6c0bce3d3

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