Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d9f9dbfab1156a1…

MALICIOUS

PDF

46.3 KB Created: 2020-08-08 21:41:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2fe8bfbd69b6c3d145fc3eb91d99540 SHA-1: b84752ddf193e5c6f8a2621c4644370f0f825781 SHA-256: 7d9f9dbfab1156a14b31348272495e287a7eab476f550424e18cde581a61f7fc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains the primary redirector URL, suggesting a phishing or scam lure. The presence of a large number of PDF links indicates a link farm strategy, likely to improve SEO for 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=oncology+drugs+pdf In PDF document text
    • http://files.cycleecosse.com/uploads/1/3/1/6/131607075/1812072.pdfIn PDF document text
    • http://files.henrymaynardhistory.com/uploads/1/3/1/8/131857114/9935156.pdfIn PDF document text
    • http://files.yourcaringcommunity.ca/uploads/1/3/1/3/131382239/7f98349f55576.pdfIn PDF document text
    • http://files.pvpto.com/uploads/1/3/1/1/131164308/fofebozaki.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/1/0432/3350/9534/files/16864954660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/weight_lifting_for_distance_runners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49605194079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/julerugokunedate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41841620016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/tupegobimaguvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/84824289412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/pefagefitetuvuxuvigafa.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_off000078b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B5 5240 bytes
SHA-256: 4a68b1e1bfb1a7381873b1d1e145b4eafaf1497d775cd2c695b2e7f4a65f6aa7
font_01_sfnt_off00008aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA4 9936 bytes
SHA-256: a7dab8585f69f6a94f6fbd0a3f31f9181f678728ac9ff99be32f62e32adb26ed

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