Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3dc896ebfb3428…

MALICIOUS

PDF

46.1 KB Created: 2021-06-09 03:02:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e6413b3427111c9185ea638babefa750 SHA-1: 853c157bfcbbd43fab078da7084e9578fbd8782c SHA-256: 0e3dc896ebfb342869209fb9177b26df3bae21fc269b83e464281cd7f800b0a7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to websites that appear to offer game hacks and cheats. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lures suggest a phishing or scam attempt designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/dominokid123-free-robux-game-hack PDF link annotation
    • http://lawpatron.ru/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005071.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5071 27888 bytes
SHA-256: 377c96c9599db9414687183b5095f97cc713330189629a4983a3a0f347cf148a
font_01_sfnt_off00008ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE7 19308 bytes
SHA-256: 1deba55b5caa896205efc88242135f5e4a03dcc563a8217cdfeee3a95d0518c7

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