Malicious PDF — malware analysis report

Static analysis result for SHA-256 511363a7e5a46be1…

MALICIOUS

PDF

49.3 KB Created: 2021-06-08 19:28:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 60649fd23a25fdaf3237700dc81b2176 SHA-1: c5622f0ca2c724ecbebb319641c71ca0212447b9 SHA-256: 511363a7e5a46be17cbaf26b48f20961776ce4204de1881628c9ad7c8f0d93fa
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are structured as a link farm pointing to other PDF documents. The document body and extracted URLs suggest a lure related to game hacking and free in-game currency, likely intended to direct users to malicious content. The PDF structure and extensive linking are indicative of a malicious campaign designed to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/431946152/what-happens-when-you-get-hacked-on-roblox-game-hack PDF link annotation
    • http://behsanroshd.com/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-followers-on-tiktok-fast_GM835599320.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-launcher-free_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_off000053fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53FB 32148 bytes
SHA-256: d66182015bf1baa8ed93e9c2b3e069d2185bd19b94c43d359f03e73a9003df50
font_01_sfnt_off00009b69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B69 19300 bytes
SHA-256: eabab80f967234e8ada6522906dd349c99a82f1db2770f46b0063f97c2cd8475

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