Malicious PDF — malware analysis report

Static analysis result for SHA-256 72cc47dca66c1077…

MALICIOUS

PDF

32.2 KB Created: 2020-08-19 05:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fdcdf0fe59df0bdfac62b3b5a23d697 SHA-1: b3c791967b533fd13673957a035c0b55f2ac73d9 SHA-256: 72cc47dca66c10775d3eb7e5aa7d5d5cb6cdf6b4cb57a976318248c83acaf27f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution scheme. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content.

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=dynamics+crm+2016+virtual+machine In PDF document text
    • http://files.b4birthdoula.com/uploads/1/3/2/3/132302924/fozoladof.pdfIn PDF document text
    • http://dewodalu.groff4life.com/uploads/1/3/0/8/130815031/xaremozexojora_bubulerowote_kibibudag_baxokefijexova.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/1/0435/0817/0918/files/g_d_a_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/57752345600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/0232/3094/files/makita_circular_saw_track_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/ruxatosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/nosoxolisebigela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/epidemiologia_basica_y_vigilancia_de_la_salud_modulo_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1842/6267/files/92597903654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/52516202649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3848/2332/files/tecumseh_carburetor_identification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6430/files/jawewuzepivurenepazodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/guvudoliguvora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/38341416169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/nopesexisovulo.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 1

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_off00004228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4228 5680 bytes
SHA-256: aee1667a4fc91474886ba6eb13484d672dee74f8f2c3ac1a23f7a6437e8666e3
font_01_sfnt_off0000555f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x555F 8908 bytes
SHA-256: 18c2af0b65ee198fd2a5f612d8265ce53b5ee53be76b0731640511c06d7e5918

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