Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f36115cac4017d3…

MALICIOUS

PDF

35.0 KB Created: 2021-06-20 17:33:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7c24cdfc95569f81744aa63a2c5b0f5e SHA-1: 214608b895fbfa190f263fd34b793443a543e8cb SHA-256: 5f36115cac4017d32780dec34266095531181ad8f5f9307b9ec101cb0c99af96
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/roblox-hack-rc7-download-game-hack PDF link annotation
    • http://kulturlandschaften.eu/images/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/oneapprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/roblox-restaurant-tycoon-hack-luac_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/roblox-fortnite-hacks_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/roblox-account-hack-2021-works-next-video-with-proof_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-play-roblox-on-phone-for-free_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-robux-websites-that-work_GM431946152.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_off000030a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A6 22776 bytes
SHA-256: 7c2112c150886db1e87e75e02672c915a437f4010b716714b1f246e9d490c79a
font_01_sfnt_off00006334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6334 19220 bytes
SHA-256: b23529bc19ea0c600026d2424c947e48e93f1dcaf88effadacf95582632aa049

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