Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2fe57d36a73cef…

MALICIOUS

PDF

41.0 KB Created: 2020-08-13 23:07:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ae5294648a1b6c99776e783eaf085b5 SHA-1: 0a69f68d206e1344f226e8a77a687b7cbc08cae9 SHA-256: 3a2fe57d36a73cef720ebd833d2258c44919d1972ee2af3fcc8db0531e689141
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to a 'vertex and axis of symmetry worksheet' and includes the malicious URL. This suggests a social engineering lure to redirect users to a malicious site, likely for phishing or malware delivery. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm technique.

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=vertex+and+axis+of+symmetry+worksheet In PDF document text
    • http://files.saintstanislaus.com/uploads/1/3/1/1/131164063/5645926.pdfIn PDF document text
    • http://xipurokis.federationofteachers.org/uploads/1/3/0/7/130739678/17f40a28.pdfIn PDF document text
    • http://files.artofkundalini.com/uploads/1/3/1/0/131071037/fujivib.pdfIn PDF document text
    • http://files.ericmccarron.com/uploads/1/3/1/1/131163736/5150701.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/1/0435/3890/7288/files/kusenuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9603/8812/files/zapedovenubobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8719/9394/files/dalenuwanexerixulavesidix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1576/files/62103754367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5015/files/ragopetuvesijogigafize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7417/files/acr_eular_sle_criteria_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2659/3445/files/97725264968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/31483058661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9047/files/lumuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/15092253386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/minecraft_beta_1._8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4211/8555/files/fake_doctors_note_template.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 8

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_off00006283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6283 5404 bytes
SHA-256: 262dbda98c34a4d4eb162438574745c2ec0dee99e947b7b0480204177f4cbe71
font_01_sfnt_off000074d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D9 10004 bytes
SHA-256: 898295cdbc7825f615de37c1f707dd4b9c67c5f7896f2dfa0d3f14bc6c3f3602

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