Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2cd1f0603f1668…

MALICIOUS

PDF

42.6 KB Created: 2020-08-23 21:30:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2466324cabc881a4936118d3e3aef4b4 SHA-1: 657be6694a6ccc084ed9e7fcf73d09e11fb4ab38 SHA-256: ee2cd1f0603f16684863b0699207d0dd6cb13694622941d25c2911ae7a590b68
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link disguised as interview questions and answers. The primary malicious URL is 'https://ttraff.com/pify?keyword=school+business+administrator+interview+questions+and+answers', which is likely used to redirect the user to a malicious site. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, many hosted on Shopify, suggests a SEO poisoning or link farm tactic.

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=school+business+administrator+interview+questions+and+answers In PDF document text
    • http://pufufaze.drewsyvertsen.com/uploads/1/3/2/7/132712326/8228d5ad633af.pdfIn PDF document text
    • http://nexebeju.mossgardennursery.net/uploads/1/3/1/4/131452846/5874716.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/1/0429/7365/9290/files/vomuzafofobizozetesusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/defofunore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9945/3608/files/ropejiguriwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1425/8851/files/16895668612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4131/6264/files/35178664352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/mavegad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/39938557956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1702/files/baptism_certificate_template_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3436/9438/files/50883305024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/52968696757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4703/files/75142131867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9470/8117/files/bosquejos_sobre_la_familia.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 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_off000067af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AF 5700 bytes
SHA-256: 3c2af0d4cb02982815405c8af454973b9697862bd63a9026f11ce6c67c792229
font_01_sfnt_off00007ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE1 10152 bytes
SHA-256: 7f167c616825918909d9758e8a9f0fd37a03aac6baad7c9ccf5c2ec2389f12da

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