Malicious PDF — malware analysis report

Static analysis result for SHA-256 03c32e2ca781f285…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 15:18:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 56790c467280064c99fe584880a614a6 SHA-1: c1ed2c2f9f8c1258abb60f199e410c917b042a48 SHA-256: 03c32e2ca781f285b0654fba780fef00661beccc07d511a3898344e4e02a7709
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on potentially malicious content, specifically related to game hacks and free currency. The primary link directs to a known malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious website, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/i-robux-game-hack In PDF document text
    • http://pianoservice.com.ua/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/roblox-source_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/xray-hack_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/roblox-rules_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a97.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A97 27464 bytes
SHA-256: 369f38bb889c9a763ba667a7482b715d47ffe1c6a716207255e2d4b499e37508
font_01_sfnt_off000087a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A7 17852 bytes
SHA-256: 60f9a9423da9e572e1984add889302644738968a990936a78873c1198bc7dc3d

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