Malicious PDF — malware analysis report

Static analysis result for SHA-256 88a0a0dcd0075432…

MALICIOUS

PDF

33.0 KB Created: 2021-06-20 15:26:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f01d135be67902f031907ee7f1c81d9a SHA-1: 134586363f18b1069b44a2c98532dcfbcaebc4b4 SHA-256: 88a0a0dcd0075432cba961d2758a98d31d78f1df831d597251c9aee25adc3ad4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites offering 'free Robux' or game hacks. The primary link, http://netcdn.co/app/431946152/free-robux-without-getting-banned-game-hack, is flagged as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-robux-without-getting-banned-game-hack PDF link annotation
    • http://sv-nahetal.de/images/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-promo-codes-2021-june_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/hacked-game-roblox_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/rbx-claim_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-how-to-get-welcome-to-bloxburg-for-free_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-leaked-games-roblox_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-hack-free-download-pc_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-robux-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-easy-way-2021_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-hack-free-robux-no-downloading_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
font_00_sfnt_off00002905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2905 22268 bytes
SHA-256: b6680ca3684749bbfe32bfe341d8a8a758ecc317af8c42116c005b2fe95991d9
font_01_sfnt_off00005ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD0 19476 bytes
SHA-256: 05d1f9a4044afde262a17fa3b2bc02fd3166c4fe65f7a71907a6fbf84418da38

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