Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c71121c6a4cabc2…

MALICIOUS

PDF

43.1 KB Created: 2020-08-10 01:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f400cd7d002a32fdc514725936e2ecb8 SHA-1: d9a8d5bc65a40710436444dcd1ca767e20d3503a SHA-256: 1c71121c6a4cabc27d6ef282285161002a324aefd92ea62704250916bb7bdef7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=folic+acid+during+pregnancy+pdf', indicating the lure is related to pregnancy information. The presence of multiple Shopify-hosted PDF links suggests a link farm or SEO poisoning tactic to distribute the 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=folic+acid+during+pregnancy+pdf In PDF document text
    • http://files.theduangroup.com/uploads/1/3/0/7/130776754/geterajefoguvivewa.pdfIn PDF document text
    • http://files.pureandsimpletruthforyouth.org/uploads/1/3/1/8/131856706/dadb79.pdfIn PDF document text
    • http://files.stephanienogueras.com/uploads/1/3/1/6/131636914/xonojebe.pdfIn PDF document text
    • http://files.pamelarogalski.com/uploads/1/3/1/3/131398334/gaxekukejadokoseba.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/1/0429/7143/1065/files/vesojebilawefofozajuvavin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/xinudiwolop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7750/0057/files/arithmetic_and_geometric_progression.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46905239833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9231/8110/files/ronig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1360/3491/files/88005322530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/gidilugubonuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4166/8770/files/kutobaparij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/bosozurisaniwozodet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/hollow_cathode_lamp_in_atomic_absorption_spectroscopy.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 7

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_off00006a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 5200 bytes
SHA-256: 7bb6214b1b1054a496f699bb2197420160bc5255463f91439b97e7e935091fcd
font_01_sfnt_off00007bfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFE 10476 bytes
SHA-256: 4040b54385d3d7c2bcb10d3bd83b0f3dce4b1dd5daec4fec6e5e925033b06fe5

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