Malicious PDF — malware analysis report

Static analysis result for SHA-256 878697c1181b737c…

MALICIOUS

PDF

47.3 KB Created: 2020-08-04 05:50:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50db8bd3db0a92087615a0b7a19622de SHA-1: d30bf6a26d446933053f2d5eda7630e8a9431aa5 SHA-256: 878697c1181b737c1c73a302f19ffcc9ec5e956d97c2420e389628e946b554b0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'free download', suggesting a phishing or scam attempt. The presence of a large number of external links, including to Shopify domains, indicates an attempt to create a link farm for SEO manipulation or to host 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.com/pify?keyword=minuet+in+g+major+bach+pdf In PDF document text
    • http://files.ashleighlleiter.com/uploads/1/3/1/4/131483830/f399f410886.pdfIn PDF document text
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/2/6/132681938/wovaxale.pdfIn PDF document text
    • http://files.rocnifinland.net/uploads/1/3/1/6/131637194/xalorexipijofum-kusotebeveb-xaxebozomexaj.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/1/0447/6190/7351/files/pathophysiology_of_congestive_cardiac_failure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/molowebokubepulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/ratuwokegexukijupavori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/27486352753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/42670747724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6326/0822/files/89905440013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/sibulatajuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/38594105331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1569/files/23755897143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/labulusinubolefapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5285/files/dotasalesasivuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8493/8390/files/gezepovesegetu.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_off00007ae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE9 5580 bytes
SHA-256: 1abd963cbceeea89e7ba9f4ecb7e2a8d8c0e4bdd1e8c7aac21ba01215cbc29f0
font_01_sfnt_off00008dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC9 10280 bytes
SHA-256: c78c33277a1fcd0eb4a0c556611ae74af1f46c07cd23a10f0aaddf2fcdd3e8c2

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