Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c16164947a2777…

MALICIOUS

PDF

42.2 KB Created: 2020-08-25 14:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d026af4406c92e711d48f9953fdf33ae SHA-1: 4730d7e5f67336b092dbe8b6b4278ece946509f1 SHA-256: c7c16164947a2777b6c49de3a17b1d82c67643972d9a4e77a9354548c2259f84
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a mass of external links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that leads to a link farm designed to appear as tourism information, likely a phishing lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=japan+guide+tourism, which is used in conjunction with a link farm to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=japan+guide+tourism In PDF document text
    • http://files.theventure.blog/uploads/1/3/1/3/131382274/b293129f.pdfIn PDF document text
    • http://files.photographybypatti.com/uploads/1/3/1/8/131856454/3ef60d2cb360c4.pdfIn PDF document text
    • http://sevizujo.bgsewing.com/uploads/1/3/1/0/131070001/xulet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/figewobunalajomubefate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/25511895282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0280/4898/files/5080142543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/rowavilomodamaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/nigewagowejabadibaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/rexelaxumebivaxujili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8941/0713/files/most_common_russian_verbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/78216512402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3654/files/80881981651.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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_off00006828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6828 5236 bytes
SHA-256: c46915267560b21e0d394b43801d44141510d1c48e4c359562f8930da8f091da
font_01_sfnt_off000079d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D8 10096 bytes
SHA-256: 1ce799134731b1fd06b3ec9106a65f1978c308db0f6fc3f30cee8fca8a56088d

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