Malicious PDF — malware analysis report

Static analysis result for SHA-256 196668d941324da6…

MALICIOUS

PDF

43.2 KB Created: 2020-08-03 19:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 122cfaec6fa5f79760a98606638c0d3f SHA-1: 99783a53b2625e127afbe638eada98e47b30bb3a SHA-256: 196668d941324da6c9ba1348dc7cb342227a4c75ebc4ad61820819a9b6df7e5e
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many pointing to a redirector service known for malicious activity. The document body, though obfuscated, contains a URL that matches the redirector found in the heuristics. The presence of a link farm and a malicious redirector suggests an attempt to lead users to malicious content, likely for phishing or malware distribution.

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=alcanos+ramificados+ejercicios+pdf In PDF document text
    • http://files.kurtgreen.org/uploads/1/3/2/6/132683334/vufofisam.pdfIn PDF document text
    • http://files.bindergenealogy.com/uploads/1/3/2/6/132696414/fogobabudanarak-zebojikages-butifeturinup-kuvomo.pdfIn PDF document text
    • http://files.kerricoledesign.com/uploads/1/3/1/4/131437941/461158.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2128194791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/jetinamovomex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5035/3318/files/galikifonevodonedoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/tawaridi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/vesafofamaxiliretoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/css_center_image.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4546/5762/files/toefl_writing_topics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6327/8758/files/ruby_alphabetize_array.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7815/files/19260510689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/bumewizesevedaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/dexiruxifijisix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/19542519792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/rejurawaxanogopab.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE2 5072 bytes
SHA-256: b949538546ba567279211b53af8758eaef7a4dab1ea5adc93995d5d14a10e162
font_01_sfnt_off00006ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF8 10212 bytes
SHA-256: 52ccf5a010b35f89e8b4d44a8d34cf6344afeba52eee09cb5657fde3c8266067
font_02_sfnt_off0000901f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x901F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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