Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2fc7f9a2226ebca…

MALICIOUS

PDF

42.5 KB Created: 2020-08-09 13:34:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f919f9872299c980a2870bfc6968cd5 SHA-1: d664020b49362467c45eb7e4817f1e0891ca3b81 SHA-256: a2fc7f9a2226ebca71782153a9ec3504fefecc4fd851f2f462fb382099091c5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and multiple links, including one pointing to a known malicious redirector. The primary malicious link is https://ttraff.com/pify?keyword=difference+between+analog+and+digital+signal+processing+pdf, which likely leads to a phishing or malware site. The document body, though heavily obfuscated, contains references to PDF files and the topic of signal processing, suggesting a lure to trick users into downloading or interacting with 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=difference+between+analog+and+digital+signal+processing+pdf In PDF document text
    • http://files.southcliffcommunitygroup.com/uploads/1/3/0/8/130814387/legawebupuxofure.pdfIn PDF document text
    • http://files.wgchowardcounty.org/uploads/1/3/1/8/131871650/1767909.pdfIn PDF document text
    • http://files.allisonpharris.com/uploads/1/3/2/8/132815015/dd23cd.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/1/0432/0909/7376/files/macro_commands_ffxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1897/6414/files/edit_pages_order_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/lexique_d_assurance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2955/7411/files/definition_of_public_relations_by_different_scholars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9539/9325/files/108484499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3767/0041/files/67829634834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/wapeboluzugepeloj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/godopawoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78986196578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/20990654720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/65841698022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5435/6897/files/donaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4714/8950/files/2531824229.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 4

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_off00006800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6800 5552 bytes
SHA-256: 3f601ebf9d0e3d0e162ed52054fc12c938f06419d3a8ce552c0fe689239c3446
font_01_sfnt_off00007b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B05 9680 bytes
SHA-256: 43e86aca24fc3878137364653694a53ae887d4336d48c729d24623bf1f427999

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