Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ea3a94f723484c…

MALICIOUS

PDF

49.2 KB Created: 2020-08-17 04:38:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d6d815b3812445f2311fb3cae3107a4e SHA-1: 75a4c53ccc548f7eb55ea7164f5559dd51b100e6 SHA-256: e3ea3a94f723484cb62731e0f75756e4d5b9433e8d99dfa654b915033906790b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links redirects to a known malicious redirector at ttraff.cc. The ML classifier also strongly indicated maliciousness. The document body itself is largely obfuscated but contains the same redirector URL and several shopify URLs.

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.cc/pify?keyword=imperative+sentences+worksheets+grade+5 In PDF document text
    • http://jujejar.award-tutoring.com/uploads/1/3/0/7/130738696/xedogifosul.pdfIn PDF document text
    • http://files.appletreeschooloc.com/uploads/1/3/2/3/132303322/e44422a7dd3.pdfIn PDF document text
    • http://files.dcfhub.com/uploads/1/3/1/1/131163613/3745206.pdfIn PDF document text
    • http://lotirim.sprucecafe.com/uploads/1/3/2/3/132303124/244c2744b.pdfIn PDF document text
    • http://tavunor.melaniedaylelauren.com/uploads/1/3/0/7/130776499/4364565.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/1/0439/4962/1406/files/pipafetifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/visomoxaguvadabirasupose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/59972558372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1646/8133/files/31719009452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/27342103654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5045/8526/files/lalitha_sahasranamavali_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/ritalagug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/radioactive_dating_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/16602669271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1386/4602/files/besplatni_antivirus_programi_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9948/8423/files/jipud.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 3

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_off000081c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C6 5732 bytes
SHA-256: 8c9af956d0495857cbb793d42ee7283afb0ac38b784f1e8907cc1c50c1d59253
font_01_sfnt_off0000952e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x952E 9948 bytes
SHA-256: f45a48c1accdcd6d2bea0ba05ce15d606ce15e978cbe4adeeb29db2ba7a3332d

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