Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d168c45d6a81c59…

MALICIOUS

PDF

47.3 KB Created: 2021-06-03 06:00:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 70c965937aafdec285da215fb011135b SHA-1: 68b839ec0dd86706d1b86736511afcc446f94fec SHA-256: 6d168c45d6a81c59ff109bbe37cbd0b6b530ff805476b812c2ff30e6ca03ed39
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 0.9769

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.online/app/406889139/free-spins-from-coin-master-game-hack PDF link annotation
    • https://www.ucc-today.com/uploads/files/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • https://www.ucc-today.com/uploads/files/files/coin-master-free_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053c0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53C0 25100 bytes
SHA-256: 79f4385c84eb80e9c15e52dbfb48efaec796d8db386f591e0dea66b74a994d72
font_01_sfnt_off00008cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB0 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000969a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x969A 18148 bytes
SHA-256: a8179ab01d9f651dd6fb5ce3364ead5561884d8b40fe8a62eaf26fde05d0c646

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