Malicious PDF — malware analysis report

Static analysis result for SHA-256 5589e85b295b2deb…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 06:24:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a8c286bb85b0f7b48a0e33c3f801961b SHA-1: 4411c1f4470e215b0c65d2b6f641989cd6e15eab SHA-256: 5589e85b295b2debc4bd7da5013c0539992b884bbdf27450eca15889a4dab5bb
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 0.9865

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/479516143/minecraft-free-download-iphone-game-hack PDF link annotation
    • http://atiltd.com.tw/upload/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.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_004_off00005023.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5023 24708 bytes
SHA-256: 0f267edd96317603e4c7b1ec1ffdaefb9113c1f4946ebdf5481f427666b1395b
font_01_sfnt_off00008868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8868 18632 bytes
SHA-256: 69c9e1d53de598faa7eba3c7e7e0e0cf5fcd320a3cd8fa35101ea10459ac0f9f

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