Malicious PDF — malware analysis report

Static analysis result for SHA-256 703445d4420a5e92…

MALICIOUS

PDF

39.7 KB Created: 2020-08-10 21:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc53743dbab9c74abcee27a47ac99eb4 SHA-1: 6a1cec054d409a47d49e6f28b606033712d9297d SHA-256: 703445d4420a5e9263221f06921029286355b690a62d170fcb7c1abead66bfc1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains a deceptive lure related to educational worksheets, which redirects users to a malicious URL (https://ttraff.cc/pify?keyword=kinds+of+triangles+according+to+sides+and+angles+worksheets+pdf). This URL is flagged as a known malicious redirector, indicating a phishing or malware distribution attempt. The presence of multiple PDF links to external resources, some of which are benign but others are unknown or potentially malicious, further supports the attack pattern. The ML classifier strongly flagged this PDF as malicious.

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=kinds+of+triangles+according+to+sides+and+angles+worksheets+pdf In PDF document text
    • http://ladex.bugi3d.com/uploads/1/3/2/8/132814930/ravolaji_mamugupofok.pdfIn PDF document text
    • http://files.krisyforce.com/uploads/1/3/2/3/132303353/7490918a.pdfIn PDF document text
    • http://files.stagemusicstudios.com/uploads/1/3/1/3/131381480/4209000.pdfIn PDF document text
    • http://files.myacexportfolio.com/uploads/1/3/1/6/131637306/5762611.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/1/0429/0006/2367/files/nojubopexufen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7718/0328/files/gujawopuzukekonez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/44622691089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/vuwopapevosaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/85493420911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84593422723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7622/3129/files/mapipobagazale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9945/3608/files/80661631944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/95523253076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1895/files/8293856861.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_off00005d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D39 5544 bytes
SHA-256: 3c3e27a897c7127ed9577a934143a6df2d10d77a1884769fc079e8ae968e089f
font_01_sfnt_off00007017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7017 9616 bytes
SHA-256: d3ffe1ada28f8103a76348ab5bd60cb61f089bf967f33ce9456a77c9cbbdab02

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