Malicious PDF — malware analysis report

Static analysis result for SHA-256 2769f2c6995b2953…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 16:47:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fa11081ace33a8ebc356d486cdf29125 SHA-1: c7a26d73db4d6061971198a73051264ea9b7d59f SHA-256: 2769f2c6995b29536d2bbd2c60cb9ede21751a0222204494912a00104ec4ec02
82 Risk Score

Malware Insights

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

The PDF document employs a common lure of free game items and hacks to entice users. It contains multiple embedded URLs that redirect to external sites, likely serving as a gateway for further malicious activity such as malware downloads or phishing. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/431946152/how-to-get-free-outfits-on-roblox-game-hack PDF link annotation
    • http://cintabaca.org/katalog/repository/how-to-make-any-purchase-in-roblox-free-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/30-robux-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/hack-de-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/telecharger-roblox-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-a-hack-script-in-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/slup-roblox-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-pet-roblox-pet-simulator_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-printable-roblox-valentines_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/get-minecraft-windows-10-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_off000030c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C9 22056 bytes
SHA-256: 7f3e322e1781761abc178574470e5941ab14795c0624b0e82e44c0d10cb09cda
font_01_sfnt_off000061b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B6 19180 bytes
SHA-256: ed497d95b734e9c9731d536326a9a55fd67885f196b0c7961c12ebe128b4a934

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