Malicious PDF — malware analysis report

Static analysis result for SHA-256 86345435a172fb28…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 23:00:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba7d6c0d8b72007178de8e43c05052a9 SHA-1: a1aeb04827dea5767ed29eaa0632613186dec7f2 SHA-256: 86345435a172fb287b23ea10174b895b0397b5dda06e871d506dc3810ac7475d
162 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to Shopify domains, but one critical link redirects to a known malicious infrastructure. The document body text and embedded URLs suggest a lure to trick users into clicking the malicious link, likely for SEO poisoning or phishing. The presence of embedded URLs and the nature of the links indicate a potential for further malicious activity, such as downloading a second-stage payload.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=chrome++64+bit+windows+8 In PDF document text
    • http://files.candicechristie.co.za/uploads/1/3/0/7/130775347/4740321.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/1/0431/8406/2622/files/57445399277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6405/0332/files/rusajifojopivisunifokepin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1909/2647/files/current_police_reports_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/2355/2927/files/value_proposition_canvas_strategyzer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2131/9837/files/bupebirimidolezubivub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/720p_stream_nfl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6698/2561/files/tofabigebibodefifasigikuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5833/9735/files/28216982448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8473/2829/files/exponential_inequalities_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4393/0791/files/golavujad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/insuficiencia_cardiaca_congestiva_diagnostico_diferencial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0346/0259/files/71814228162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7542/0835/files/92733602208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/lalufitesodibudox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/wekolaxotasulivowegevu.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: candicechristie.co.za 4 samples

Related samples 1

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_off0000626c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626C 5396 bytes
SHA-256: 4b57fbb4435d3aac63d57d98798bac71672cfcd44c4a4fa57b0f3820a633d068
font_01_sfnt_off000074b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B4 10896 bytes
SHA-256: ad6021c6cf1e91c32ea1b8d67c6959681f691779e2463aa2f6e5022d1fbaf071

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