Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aa0222362fc9aa7…

MALICIOUS

PDF

41.3 KB Created: 2020-08-23 23:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bcbb983c7c8b2f0c077fb03d88e0796 SHA-1: 326067cedaf2b711973e6432fbaea65bc375f5b4 SHA-256: 4aa0222362fc9aa7366e01f81daeb1f98f860b04d63fe981aff5235e44f12d8e
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 pointing to shopify.com domains, but one critical link redirects to ttraff.com, a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Best android mobile phones below 3000' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary attack pattern involves social engineering through a deceptive link.

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=best+android+mobile+phones+below+3000 In PDF document text
    • http://files.sbcopywriting.com/uploads/1/3/2/7/132740218/644292.pdfIn PDF document text
    • http://files.rajpurohit-lab.org/uploads/1/3/1/0/131070612/187700.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/1/0432/8197/3416/files/neopets_food_club.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/canada_passport_application_form_renewal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/38714593061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9055/9655/files/dibelixokofigefibivuxanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/gikaxumirefipederibut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/wamekaferebadorobiwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9445/0078/files/lumodovilomogiledok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/varufuzulusubutuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/gudekonoxivabifananawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/181300170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/7523665803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/zikizobodeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/jejejolarexisowawefoj.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_off000061dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DD 5788 bytes
SHA-256: b6a2e3c316e8b84443d931a594adfa82f916449c8eda7e84dfd8781c95731be8
font_01_sfnt_off00007568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7568 10172 bytes
SHA-256: d1ec548052da01037b2983081f69d13b9e72835c9a8be2fcee531a2760126a2b

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