Malicious PDF — malware analysis report

Static analysis result for SHA-256 038de09dd320d936…

MALICIOUS

PDF

45.2 KB Created: 2020-08-07 22:28:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f557a2c31090712873592d1a0efbe04 SHA-1: 3bf0c73df5af2c598d9f6e95983499f39a9380b5 SHA-256: 038de09dd320d93602ffc839c1856d387993db3a8638b3df6b69cba274389b8b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which are part of a link farm designed to manipulate search engine results. The primary redirector URL, 'https://ttraff.com/pify?keyword=elementary+probability+examples+pdf', is flagged as malicious and likely serves as a lure for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.

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=elementary+probability+examples+pdf In PDF document text
    • http://files.solonchamber.com/uploads/1/3/1/4/131407274/f2b30c2.pdfIn PDF document text
    • http://files.moebasketball.com/uploads/1/3/0/7/130775131/1162904.pdfIn PDF document text
    • http://files.cobblestonecottagequilts.com/uploads/1/3/2/3/132302855/4529407.pdfIn PDF document text
    • http://files.kellyhowellphoto.com/uploads/1/3/1/4/131437563/af75e1af4.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/1/0429/9191/1066/files/guradilulapelijukija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/bevizedufakomovivazejuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9167/2736/files/devebiwenafejak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1608/4891/files/sedanepozaraven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/23446942544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6502/4416/files/62303635757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/17237371404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/wusivasonupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8814/0696/files/country_code_32.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43396058945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/bikugibakur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejozetopugewafapo.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 2

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_off0000723e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723E 5452 bytes
SHA-256: ea97bc7d2cf6706286e4f37311a96d2a5dbe9dc0bd4dd9466fb9b913bedeec00
font_01_sfnt_off000084b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B6 10376 bytes
SHA-256: eff71f6a2fd61ead4c05679206fa818c8c6b58b42f774e8eb271efc93512075e

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