Malicious PDF — malware analysis report

Static analysis result for SHA-256 201256a5b8a77338…

MALICIOUS

PDF

34.6 KB Created: 2021-07-08 01:14:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8266601a729294ce6308df6f69613ca9 SHA-1: 85e42da367c38eb9b6e40c3c41628e0ce78611c6 SHA-256: 201256a5b8a7733861a77b5699f5dcb2123047296a412630a6cc0a62ae4e458b
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-spin-rewards-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-online-games-like-minecraft_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_off000031b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B7 22508 bytes
SHA-256: 307bf7983af2385239275e1c60ed638b4b38cd04ca6400d3968b33ca6406df49
font_01_sfnt_off00006409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6409 18348 bytes
SHA-256: b6a1bdd00d84950d59c3a90ff303f538fed799227134c5a7e1ea06d428d69b7b

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