PDF static analysis report

Static analysis result for SHA-256 ec9b07f1f565a9e7…

SUSPICIOUS

PDF

32.1 KB Created: 2021-07-19 09:25:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f35965cb210f16dcac9ff2a4aba98baf SHA-1: 40455c0ee34969454e8ac2e5a1cf89934509d158 SHA-256: ec9b07f1f565a9e7bb7fe4a9e4cbc0a956f4ce0906949c979171fd2b397f6137
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent call-to-action phrase, suggesting a phishing or social engineering attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs indicates an attempt to redirect the user to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a downloader or redirector for a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 3

  • 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/free-minecraft-server-game-hack PDF link annotation
    • http://www.gravel.ru/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.gravel.ru/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.gravel.ru/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://www.gravel.ru/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.gravel.ru/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://www.gravel.ru/images/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.gravel.ru/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.gravel.ru/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gravel.ru/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.gravel.ru/images/free-spins-on-coin-master_GM406889139.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_off00002c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3A 22224 bytes
SHA-256: fe92503a22b075676bbabee0aaa15d13a49b124a6466a3ce6250b934f4c22eb0
font_01_sfnt_off00005d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D12 17684 bytes
SHA-256: 971ebce79d03a5424fa8491ae570b1f65fe2ad06e00737069ab54be99501e2e8

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