Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc74772cb2805ef9…

MALICIOUS

PDF

39.0 KB Created: 2020-08-07 21:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 068a9648eb2c50b0af23560b2d2dafe9 SHA-1: 35adaa5d64d6f9193deaa44f0d46fda4b5fc02cd SHA-256: dc74772cb2805ef9e3713cff0533086ec8edcf19b5b5549f9f3a8479f6524a94
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to redirect the user to a malicious site, likely for further exploitation or phishing.

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=ashtanga+yoga+poses+pdf In PDF document text
    • http://files.overcomeyourvaginismus.com/uploads/1/3/1/3/131378771/e84915d5eef985.pdfIn PDF document text
    • http://files.prettygoodideas.studio/uploads/1/3/0/7/130775109/c533b7.pdfIn PDF document text
    • http://files.ritaonrealestate.co.uk/uploads/1/3/1/4/131437806/fozoxokovonivad.pdfIn PDF document text
    • http://files.barnsandburleycandleco.com/uploads/1/3/2/6/132682882/e27767bf7b70a52.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/1/0430/4227/5485/files/what_is_an_example_of_assonance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/21317184557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4031/6319/files/36411195290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6465/6026/files/adventures_in_middle_earth_players_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8466/1414/files/belezisabojapogozafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1610/9736/files/74495333003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/lirumofibaralixavixane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/99614826914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/kodajiwesimevuxofivamun.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_off00005aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ABA 5268 bytes
SHA-256: 4de00277cbfefaf41e2c197f6161e849970a4020fcc41da10afe8c745b265b1f
font_01_sfnt_off00006cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB8 10808 bytes
SHA-256: 60b2366dd5b64ec7b5229f28c500607fb5bf539e6796cc4bbb41a7b3a70b6673

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