Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bd4ddfae109d164…

MALICIOUS

PDF

44.6 KB Created: 2020-08-06 22:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8f140b53fe0f89ec903597d0cc16bef SHA-1: 935e2ae5ef8311962577aff88d479d7cff16c69b SHA-256: 6bd4ddfae109d16479225fb44e1fbc5b4e787ac5aa6ead426039994d0815fc89
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to an SEO redirector service (ttraff.com) that is flagged as malicious. The document body and link farm heuristics suggest a lure to download further content, likely malicious. The ML classifier strongly indicates maliciousness, and the embedded URLs are the primary indicators of compromise.

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=partnership+goodwill+accounting+treatment+pdf In PDF document text
    • http://files.australiande.com/uploads/1/3/1/4/131437313/dovabi.pdfIn PDF document text
    • http://navudiga.ericashanechildbirth.com/uploads/1/3/1/4/131453194/zugovolegodove.pdfIn PDF document text
    • http://files.uublaine.org/uploads/1/3/0/8/130874544/tunusukijugow_mamowazebe_sepaxamawewupek.pdfIn PDF document text
    • http://files.mcgrathirishdancers.com/uploads/1/3/1/1/131164310/25e67bf116bd907.pdfIn PDF document text
    • http://files.fracturedpottery.com/uploads/1/3/0/8/130874029/3a175a79d.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/1/0432/0614/8255/files/defulurajuvosalamop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/97591861011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8901/files/94814333293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0662/9784/files/xuninitevejoxidetobameso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7985/files/levurokodim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/41120767464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/rajigalesapul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4327/files/tawefazodatabazego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/laboratory_glasswares_and_their_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/gozawiwajoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/69574190420.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_off00006e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E96 5664 bytes
SHA-256: eeb0ddc928206903ac6424f2569a6ffdd02acdf85ddc9e51300faa9716cc6193
font_01_sfnt_off000081c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C6 10420 bytes
SHA-256: 2611f8a72e4838b1c88444ca873b185157dd4ab54d32f22bd9180cf2ea02fe76

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