Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f1114e721a6d64…

MALICIOUS

PDF

41.0 KB Created: 2021-05-12 09:06:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ad3463b207b32ad19903f0623aa0b879 SHA-1: 52b622ef8a8b02cf1cd5c1b38b15e08b7aa99524 SHA-256: a6f1114e721a6d64b4b37263471eacfe6a19e4b77760472260a22ae65bff75f3
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 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-bit-ly-game-hack PDF link annotation
    • https://gigbagwinkel.nl/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46E9 24472 bytes
SHA-256: 58ae1d043e3007bca1e7d9a4e1e95c85482ff38153720e1825d4c1bd3cb30646
font_01_sfnt_off00007df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF1 18280 bytes
SHA-256: 30193a21741cc5402413da2ce8c3dbb562d342d001498cd3d21d10b4bea75843

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