Malicious PDF — malware analysis report

Static analysis result for SHA-256 220a3779a2ad9652…

MALICIOUS

PDF

35.3 KB Created: 2021-06-29 17:32:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0bd2ae99c0ec722c44be60fdc2a6d97d SHA-1: 7c99afc8bd4f812576e4993b77347dcd4f510879 SHA-256: 220a3779a2ad96526b3a21c0ce04d8bd7bd30b365b0461e0cd1902bf9314fa88
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which are structured as a link farm for SEO purposes, pointing to sites offering game cheats and in-game currency. The presence of a call-to-action phrase and the ML classifier's high confidence score indicate a malicious intent to direct users to potentially harmful content. The document's content and structure strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/games-that-give-you-free-robux-2021-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/make-robux-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/my-account-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-1-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/what-is-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/actual-up-to-date-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/wahts-best-lvl-7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-android-step-by-step-anddoid_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/dantdm-roblox-hacked_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_off0000310d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310D 22084 bytes
SHA-256: 4705e32c107e2a7e23e7d01b4783ef869824ced76422909ecc403e801ea0e9df
font_01_sfnt_off000061f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 20044 bytes
SHA-256: 0611fcc778eccdcb7744228ea4580fb3c1e683110b4febcd9cafd925e5dffce0

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