Malicious PDF — malware analysis report

Static analysis result for SHA-256 67205b63c55ed387…

MALICIOUS

PDF

51.1 KB Created: 2020-08-05 08:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9fbb45d14b9842aceeb1e8a7e191ba5 SHA-1: 818e5d5b005fb0c86320de1df0b2872ac950c29a SHA-256: 67205b63c55ed387809aced1d48f7fab59eaa3542acf5fdacc86d0db77f38bc5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as essay downloads, but they redirect to malicious infrastructure, specifically `https://ttraff.com/wb?keyword=internet%20addiction%20essay%20pdf`. The ML classifier strongly indicated maliciousness, and the presence of a link farm heuristic confirms the document's intent to drive traffic to potentially harmful sites. The document likely serves as a lure for phishing or malware distribution.

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/wb?keyword=internet%20addiction%20essay%20pdf In PDF document text
    • http://files.awazetours.com/uploads/1/3/1/4/131452878/xederen.pdfIn PDF document text
    • http://files.madridistasatl.com/uploads/1/3/0/7/130740480/tarutajaluna-vapogaxo.pdfIn PDF document text
    • http://files.sophierobinsmosaics.com/uploads/1/3/0/7/130739398/bce3c3e8635f.pdfIn PDF document text
    • http://files.nologoproductions.com/uploads/1/3/0/7/130776462/2393184.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/1/0428/9835/8432/files/81274949660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8385/7053/files/16744434882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7581/0966/files/tefagejoluxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5842/files/twinkle_twinkle_little_star_piano_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/42280076815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6437/files/leduwedefigefodeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuwunojipodaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/zokatofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/46481863270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0857/3085/files/36795187361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/zagenugogomibafidubafusa.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
🗂 Part of campaign: ardasphotography.com 5 samples

Related samples 3

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_off00008b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B32 5156 bytes
SHA-256: cf849be7a54a46eaca328351444be0d0943792df9f97950579aabe610bc7d47f
font_01_sfnt_off00009cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD6 10304 bytes
SHA-256: dacda1cc5f6a7d3a18c733ff9a489caa757300da073da274cc3ef65be41c3510

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