Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ade756e436fb525…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 19:07:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7103a1388e3baa515fbe3493c129bdf5 SHA-1: aaea309c8db3b927d92384caf9cb4b1bff1a6ece SHA-256: 9ade756e436fb525255e1a86a0a8c28551440720e2da2b7b0e824f1c4cb9df7b
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/hack-para-booga-booga-roblox-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/cheat-engine-67-on-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-how-to-walk-through-walls-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/is-it-possible-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.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_off00002f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6F 22908 bytes
SHA-256: 0851329cfb859c01aa21a4e279f2e0333590a4b2897cbb31690ba2cb0e400666
font_01_sfnt_off00006301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6301 18808 bytes
SHA-256: 8a3117099f6f6a803edd6c238b3c4579a135bfe0f9318afe2c4a384b1465331f

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