Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee72e55ad3c8df6…

MALICIOUS

PDF

37.9 KB Created: 2020-08-21 09:13:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab79f87ddcb93bdca942d39f79bf7499 SHA-1: 089cc6a50fd7c7ffb785a05d3f4d42f44f10fc6d SHA-256: 3ee72e55ad3c8df627c67676ce68593f9542c46979238022edf2bd3e419bc348
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to 'jumbled sentences worksheets for grade 2 pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier also strongly indicated maliciousness.

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=jumbled+sentences+worksheets+for+grade+2+pdf In PDF document text
    • http://files.sailabilitybatemansbay.com/uploads/1/3/0/7/130739919/3479141.pdfIn PDF document text
    • http://files.neasta.net/uploads/1/3/0/7/130775634/4e3fd199.pdfIn PDF document text
    • http://files.zionlutheranclark.com/uploads/1/3/2/7/132740193/4348688.pdfIn PDF document text
    • http://files.bribetter.com/uploads/1/3/0/8/130815137/1381984.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/1/0428/6545/9366/files/70010506074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/22955989664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1882/0511/files/hotel_california_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/xawazoxozixusivegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/37008120910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8948/4190/files/kugejurolutebexudomute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/xeriwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/98960821723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/wowonowafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/1843780546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/bonajawojut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/61480210365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/fokevenilup.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_off000052f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F7 5984 bytes
SHA-256: 223c78fbe38261512b41f5593b00c073d73c3b9490f24abcb02090bd5ef520e3
font_01_sfnt_off00006738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6738 10276 bytes
SHA-256: f24b2f1b94f7252aee6d0170a5ac57ccb6b7e640097f3a0655d3449efd967ce0

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