Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb9b2c7611bdfde…

MALICIOUS

PDF

34.2 KB Created: 2021-06-30 05:35:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 82078706c83a974c6ea95c06473df68a SHA-1: e11844318d4ce38bb4a08e4516629c2a4fd265c3 SHA-256: 2cb9b2c7611bdfde8b387829314d4e4302429c2fa8fc8cc8a2b87aee1a0bd15c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that are designed to lure users into downloading potentially malicious content or visiting scam websites, as indicated by the 'ROBLOX Script Executor Free' and 'free generator / game hack' lures. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs likely lead to further stages of infection or phishing attempts.

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-script-executor-free-game-hack PDF link annotation
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-seriously_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-nike-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/roblox-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/hack-skywars-roblox_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/roblox-miners-haven-money-hack_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/breaking-point-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-robux-earner_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/free-robux-2021_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_off00002fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC7 21896 bytes
SHA-256: 97c428ca7a1fb37620c1cab7db27d68be48cc198ba7ce5fb0c24753cc9b1b493
font_01_sfnt_off00006033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6033 19192 bytes
SHA-256: d66373ea5ab1b8b466fc6e6258f526b91ee4d86cf629368fdc40183b9a98196c

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