Malicious PDF — malware analysis report

Static analysis result for SHA-256 49435d9d9a4d99e1…

MALICIOUS

PDF

42.8 KB Created: 2021-05-10 21:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 6d9f7d331f958c44414168bf8a20bd91 SHA-1: 79b543924ff5628573e4b5218463e636a7d85d52 SHA-256: 49435d9d9a4d99e1480c17f0db35e33f9a508471fe1dda264f7bd3be3f94f2b8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, specifically 'https://netcdn.xyz/app/431946152/blox.page-free-robux-game-hack', which is designed to lure users with promises of free Robux. The document body and embedded URLs reinforce this lure, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/blox.page-free-robux-game-hack In PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-hack-without-human-verification-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b56.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B56 24708 bytes
SHA-256: 5b9d34b1c738632ee3027ffdbbec4a2ef5c3dde8f342320f2172f1eeccc2a435
font_01_sfnt_off0000831c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831C 18848 bytes
SHA-256: 477bf2ef93abdd264292ffad6df1a1b97b65e35661cdcc3b49278aa82d19b07c

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