Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3f506d0040400cd…

MALICIOUS

PDF

59.5 KB Created: 2020-08-05 16:56:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03a1c6eb863f1c792728fed85291f220 SHA-1: 24211cca7f6996f955704117870c6f9476e8176f SHA-256: a3f506d0040400cd5e55de4a3b1b8ee785d5f2b3052306d9fe44da29c9758eb1
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL. The PDF is structured as a link farm, with many embedded URLs, including the primary malicious one. 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=themes+of+metaphysical+poetry+pdf In PDF document text
    • http://files.nataliemariaclark.com/uploads/1/3/0/7/130774994/puzatadulejuti-wetuwivikug-zizez.pdfIn PDF document text
    • http://mejajekar.bjeweledboutique.com/uploads/1/3/1/0/131070581/a035fde757c93.pdfIn PDF document text
    • http://files.zwanzigerrealty.com/uploads/1/3/1/8/131871692/fegiwi-juzipivabo.pdfIn PDF document text
    • http://files.castirongrilllubbock.com/uploads/1/3/0/9/130969717/47b9553b00f1.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/1/0436/8770/6777/files/afc_asian_cup_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/10406465026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/vector_integral_calculus_problems_and_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9076/3175/files/82449457147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1663/4016/files/77654629736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/99825517460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/jazepimivupipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/voter_id_card_form_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9845/5705/files/pewemowusogazorisefidefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9121/2950/files/2602814094.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_off0000acde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACDE 5444 bytes
SHA-256: 5737e2ab99eac867aa0fa73ab668b6a76c5f17d993fbb2a7c8d649d35c42b530
font_01_sfnt_off0000bf3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF3F 9876 bytes
SHA-256: d319400ac12b87ed5c1a00a3d11984d96b9faa6634c10b79a111d4e8217b7840

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