Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03118f1e0ef1750…

MALICIOUS

PDF

40.9 KB Created: 2020-08-10 12:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f437b18e7f58416317dab0cc0426e44e SHA-1: 7dfd5407760f7e76768a565ae59c2d301ee31d8e SHA-256: c03118f1e0ef1750e0b329c8fbb7c1fa6ff6545ae981f080a79d230381e7b8bf
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector infrastructure at ttraff.cc. This indicates a link farm or SEO poisoning attack designed to lure users to malicious sites under the guise of providing PDF downloads. The ML classifier strongly supports the malicious nature of this 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.cc/pify?keyword=the+cambridge+history+of+the+graphic+novel+pdf In PDF document text
    • http://files.sullivanandnolan.com/uploads/1/3/1/8/131856125/405388a.pdfIn PDF document text
    • http://files.stephentemplin.com/uploads/1/3/0/8/130873864/mapogejowepajuwatek.pdfIn PDF document text
    • http://files.raglandwrites.com/uploads/1/3/1/3/131398143/9286165.pdfIn PDF document text
    • http://files.writinginarowhouse.com/uploads/1/3/1/4/131454521/sekisavikoburutunem.pdfIn PDF document text
    • http://files.freeheartranch.com/uploads/1/3/2/3/132303134/xaridube-dowugixodepawo-xopukegivodobu.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/1/0430/4555/2290/files/tiny_beautiful_things_cheryl_strayed_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/gotesidosodumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/mipewilarupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/kixesakibuwalovifiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2958/4282/files/13072767063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5369/5647/files/13323360171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/nuwubutalus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1751/files/homero_odisseia_frederico_loureno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.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 6

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_off00005f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 5820 bytes
SHA-256: 5ec1858b50e672850b6ca901e97b44df7f242bc40a1c435c735637e70264de9a
font_01_sfnt_off000072c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C6 10552 bytes
SHA-256: 94a61890f80287bc96e90c57f739483f3cf752fe54a1c59df365482e83a550f7

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