Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed1141d4108c5d0…

MALICIOUS

PDF

32.7 KB Created: 2020-08-12 02:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 927e0121e0fd04f8b231a4a6abe6748c SHA-1: 1e0bdd4e941148208c1ed8181052a1c4184606fa SHA-256: 8ed1141d4108c5d0818d8db7f31c53f81a6485a168a0d11d6f2f20043911cad9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL points to 'ttraff.com', a known malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL. The primary intent appears to be redirecting the user to a malicious site.

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=andante+andante+abba+piano+pdf In PDF document text
    • http://files.nacinformation.com/uploads/1/3/1/3/131398250/xupisujiloxuvi-dusadibitiwiv-rikabuk.pdfIn PDF document text
    • http://files.directedapparel.com/uploads/1/3/2/6/132695832/085dcdd446.pdfIn PDF document text
    • http://files.staywhole.net/uploads/1/3/1/3/131384025/1687405.pdfIn PDF document text
    • http://files.prayerknight.com/uploads/1/3/2/6/132680932/09d292d8.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/1/0450/7097/5128/files/english_grammar_for_beginners_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7373/9675/files/lubelotise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1172/5723/files/bezalovepap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/github_readme_link_to_section.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0104/files/53951256822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/73626342606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4517/4939/files/80080947098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/jurilajuxidux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/1472125886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3586/4736/files/buku_agama_islam_kelas_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9079/5941/files/tres_bien_merci.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 7

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_off00004519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4519 4856 bytes
SHA-256: 79c8242a528da6484c68b8b380d4068efafdce3ff5a02f7fc64f90d18dd82565
font_01_sfnt_off000055b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B0 9372 bytes
SHA-256: e04127dca2811c08f414f14a3ec08b639b306c467153f8b0b0592acb7ce49c79

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