Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e4c9e3378e917a…

MALICIOUS

PDF

42.2 KB Created: 2021-05-13 15:02:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 057382faa428a4d44f4e6bc9f9154e16 SHA-1: ca38ea5ea555b97cecbc00ee71cd995a8cbb37b1 SHA-256: 45e4c9e3378e917ad4154aa13a5c11975f1254c9fbf857c1568a5e75306e615b
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/431946152/free-robux-com-2021-game-hack PDF link annotation
    • http://pianoservice.com.ua/images/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-master-official-page_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • http://pianoservice.com.ua/images/roblox-hack-unlimited-robux_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
font_00_sfnt_off0000483f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x483F 25396 bytes
SHA-256: 5cb93c4c3cbcf622079f9aa3f471284f85bcc87c7358a59e732dbf3ebbbca8fa
font_01_sfnt_off00008173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8173 18676 bytes
SHA-256: db7deb15448d884d15c6a42f746ab8a768d26593fd7e085f0109997e06cd96ff

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