Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c149765c439179…

MALICIOUS

PDF

35.1 KB Created: 2020-08-17 00:00:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02b0535d4c5a9a116d374e11b69bc440 SHA-1: 4e45b41f5eedf9dc7d3bbd6ea4bf512e82b3b21a SHA-256: 47c149765c4391799a4f2b926d0564519345364291c783370e895836f79dc238
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body and embedded links suggest a lure related to educational materials, specifically 'conceptual physics practice page chapter 4 answers'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=conceptual+physics+practice+page+chapter+4+answers In PDF document text
    • http://figosiwog.savannahsturm.com/uploads/1/3/1/4/131406650/7196548.pdfIn PDF document text
    • http://files.weyemilab.com/uploads/1/3/2/7/132740997/jokupukib_bapuwako_gekemakirexo.pdfIn PDF document text
    • http://files.building313.com/uploads/1/3/0/7/130776350/bulemilonujuk.pdfIn PDF document text
    • http://files.wincantonchiropractic.com/uploads/1/3/1/0/131070912/vavulinokamir.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/1/0431/5407/9904/files/gugomimifafagavefaguz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/class_11_maths_ncert_binomial_theorem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/34645331038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/dedepumobidenozikok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/tizowapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/standard_definition_tv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/33214307516.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 4

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_off000049be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49BE 5384 bytes
SHA-256: ec0e48ae9263b1af20ce00d16a6f1227d9c8f85d528708228e493f1109965a51
font_01_sfnt_off00005c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1E 10408 bytes
SHA-256: f90e02c40f76d8fc91c95ceb3edaf02717be990a2f9b6e14ab1cf371d1c5e951

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