Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2fc21100c59b7b…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 05:15:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 51fabc03e72e6491de636b9922940af1 SHA-1: 0f549f8adf4431456f70a928570c79c494ad6685 SHA-256: 0a2fc21100c59b7bb92a780a2b1fa3af7f119528b073d5c317e3404f2d7ecd04
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure. This link, http://netcdn.co/app/431946152/get-free-robux-rewards-game-hack, redirects to a malicious site, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

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/get-free-robux-rewards-game-hack PDF link annotation
    • http://ines.co.rs/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/script-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-dragon-ball-after-future-cheats_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-no-human-verification-jeuxvideocom_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://ines.co.rs/images/xray-hack_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_off00002fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE9 22280 bytes
SHA-256: 7207ba3a23b94a2564eb626b2ab9a912f56ec4c9ae66361dde20af65daf673fd
font_01_sfnt_off00006166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6166 18972 bytes
SHA-256: 45175c48bc37b81aa8158d4cbef7aea5451cf35bdceb7bf61067bf99d27b2de6

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