Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1fdd44c93a8ee93…

MALICIOUS

PDF

43.6 KB Created: 2020-08-02 19:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b570be12ae33068674e42da4816ed558 SHA-1: ba484831d0fff254aab3352d7a7c6fbf424a28e5 SHA-256: c1fdd44c93a8ee9334f4fdb9d7b135a7552a9e81d6b7c733593fa9bfd4a69f93
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to lure users with keywords like 'samsung top load washer manual'. This indicates a phishing or scam attempt using a deceptive document.

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=samsung+top+load+washer+manual In PDF document text
    • http://files.rhymedilation.com/uploads/1/3/1/4/131453393/6869495.pdfIn PDF document text
    • http://files.allisonscustomcreations.com/uploads/1/3/0/7/130775968/4053350.pdfIn PDF document text
    • http://files.oakmeadowsfarmllc.com/uploads/1/3/0/7/130738741/xepofida_fesujanutosome.pdfIn PDF document text
    • http://files.mwdesigning.com/uploads/1/3/0/7/130739353/tupuronu_lasilaz_venokipu_nesid.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/1/0431/8304/6813/files/fanolijosuzovaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/79117043933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9321/2827/files/sitiwixiripamonenejitore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8621/6352/files/60897581616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/pavibojopaxagesap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/14476708779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/71989689477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5620/9819/files/rosulizafon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/97556122765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/11148035114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8271/1201/files/nizazanadatutibumovojov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3796/5979/files/79207949804.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_off00006b64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B64 5568 bytes
SHA-256: babfa01b6c952420bffc7d0a7ec8345693a9ad42e200715536a988bb7d23f4b2
font_01_sfnt_off00007e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E36 10260 bytes
SHA-256: c03651b690db6d982e17f0cb995c4bd95dac9ebf3a9ba2e112a7a55816a796a4

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