Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ace123e3ef2e17…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 21:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 925096dca197ee4115532dd8b430cbce SHA-1: 677299768fc456cc233421b84ef07935c84c5566 SHA-256: 07ace123e3ef2e1725d3f1088ec9e3c6b50229aa1c4a690e5d5d986c28413f7c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that appears to be part of a link farm for SEO-based phishing lures. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary goal is to redirect the user to a potentially harmful site.

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.ru/pify?keyword=pokemon+290+pokedex In PDF document text
    • http://files.eastpointhorspice.com/uploads/1/3/1/4/131453247/pofotopifexoj.pdfIn PDF document text
    • http://files.neisdoap.net/uploads/1/3/0/7/130738755/zozenode.pdfIn PDF document text
    • http://files.karynpearson.ca/uploads/1/3/2/6/132696128/senakojadukela_mixusesepib_rogobotenes.pdfIn PDF document text
    • http://files.lakewoodinstituteoftheatre.org/uploads/1/3/0/7/130775762/754d3d71f8f94da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/40526734820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9860/3669/files/best_software_engineering_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2486/5685/files/69747969294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/kebokomejuzebalusidugoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/sebudone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5217/0392/files/57873042487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/loterutipedaposamalur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/todimaluseza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/joretetegebimuluvuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/31082480183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/ejercicios_de_nmeros_primos_y_compuestos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/92789307559.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000640a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640A 4812 bytes
SHA-256: cd2c40e6f69ee5ff47fcd2bd5b81ad66e38c965d32ab77738893689b8013af32
font_01_sfnt_off00007449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7449 10144 bytes
SHA-256: 28657ebc1fddbe6633e8c8313b4d10702293517d8135b7056ee4774a735b92b8
font_02_sfnt_off000096d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D0 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378