Malicious PDF — malware analysis report

Static analysis result for SHA-256 953a5f47694cc88f…

MALICIOUS

PDF

67.6 KB Created: 2020-08-24 00:42:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ff784b1256ced6a1ff204034fc7bac7 SHA-1: 43facbde439e2f9fc99bcabaf1c808203fb708e2 SHA-256: 953a5f47694cc88fb8ff06f719a07aaf94c9262b5e2dfc8859dd698e5effe9c1
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to lure users to malicious infrastructure.

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=battleship+potemkin+full+movie In PDF document text
    • http://files.etymologynerd.com/uploads/1/3/0/8/130814680/rimexefapadaleg_nafawivesekixo.pdfIn PDF document text
    • http://pafasasod.herovision.ca/uploads/1/3/2/7/132712416/8b9a759d921fa1.pdfIn PDF document text
    • http://files.kingstreetbeer.ca/uploads/1/3/0/7/130776486/rekawizufukafiw.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/1/0444/3917/5335/files/administrative_manager_duties_and_responsibilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/wukurewogofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9324/4570/files/invite_people_to_like_facebook_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/plumbing_aptitude_test_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/83968368064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6012/8931/files/borland_c_builder_unleashed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8982/0836/files/merriam_webster_dictionary_premium_apk_offline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9212/files/78263339053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7644/3543/files/acupressure_points.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2824/0794/files/kentucky_schedule_a_2018_tax_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/buchungsstze_bungen_lsungen.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: kingstreetbeer.ca 5 samples

Related samples 2

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_off0000c4bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4BD 5216 bytes
SHA-256: c4d227dd1500dcc6f7585b608fe1cf4505a6eed7694fe747af99e0e43ecf9764
font_01_sfnt_off0000d66b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD66B 13252 bytes
SHA-256: eba7206eb8453bacb9c0619e83ba3f4621bcf86fac746b304923f1cf928f4d23

Open this report in the interactive analyzer, or submit your own file for analysis.