Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fa845f3f0c150e4…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 14:00:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 22f12878fd93578c036ff14108f9bc49 SHA-1: 6c9787771ebfa92a7ec9788668494b12cbc28e73 SHA-256: 3fa845f3f0c150e4ab312dc671546cd6098b49705ed5274ed7ee979f14b31c12
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.tw/app/406889139/coin-master-get-free-cards-game-hack PDF link annotation
    • http://balitgetas.co.id/pustaka/repository/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-codes-june-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-everything-free-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/what-is-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-bc-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-roblox-card-code-generator-download_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-hack-character_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-codes-that-haven-39_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-free-robux-no-app-download_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/happymod-hack-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-cash-cheat_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_off000030bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BC 22616 bytes
SHA-256: 47819894fcbacd862739b33266803faaa92e23928b5a7bf58c8a1b6d6f220066
font_01_sfnt_off00006357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 18172 bytes
SHA-256: 5d2ba4e6671a22cd3447e179d7f1c985698191887f082c2695de5349955ac1fc

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