Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b26625b59636268…

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 22:41:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 4ef7caa5e2ece48eb8328a732ddd82cb SHA-1: 057069d17a598ba2ef58233436ebf34e9dc3de03 SHA-256: 4b26625b596362686aab258f6a909d69228c1d80831fbc3150ac5a711912f913
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links to known malicious redirector infrastructure, specifically targeting users with lures for free Robux and game hacks. The ML classifier also strongly flagged this PDF as malicious. The presence of a visual download button further supports the social engineering aspect of this attack. The document's primary function appears to be redirecting users to malicious websites.

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/funblox.xyz-free-robux-game-hack In PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/roblox-g_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/earn-robux-now_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/hack-a-game_GM431946152.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • http://xn--80aciiv6azczc.xn--p1ai/images/free-robux-hack-2021_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_off000048d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D3 25236 bytes
SHA-256: 6fd9255302e487a7be7a077030e1fbc76e434616394a85c94bd038135d1a3d21
font_01_sfnt_off00008130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8130 18416 bytes
SHA-256: 094e3ad3acb05c69538296255af77c281e929786c4e47907665e7e86d1bfa11c

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