Malicious PDF — malware analysis report

Static analysis result for SHA-256 92d6b7a0103d4222…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 21:28:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: efcca5818c04f536e0c3b80e37ffd0c1 SHA-1: ce0e41493fb172c28eb8c32a847b98a4b405815b SHA-256: 92d6b7a0103d42221a0392a2d127f7f7d08c881847ac10f5b457353fab8711dd
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which are SEO-optimized to appear as legitimate resources for game-related items and currency. The primary URL, http://netcdn.tw/app/479516143/minecraft-pe-hacks-ios-game-hack, suggests a lure for game hacks. The heuristic PDF_SEO_LINK_FARM indicates a mass of external links, likely intended to direct users to malicious or deceptive content. While no scripts were explicitly extracted, the structure and embedded URLs 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.tw/app/479516143/minecraft-pe-hacks-ios-game-hack PDF link annotation
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-case-clicker-hack-download_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-only-username-no-human-verification_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_off00002e8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8A 22840 bytes
SHA-256: 301186d4df7522b9f18f1f19c49076fd901be441d2a3967a3ec5749d265ed1f0
font_01_sfnt_off000061b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B1 18320 bytes
SHA-256: 7d84f67f656a26b257965eaa88f51ac3ee81fd92679c35102939931f4214227c

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