Malicious PDF — malware analysis report

Static analysis result for SHA-256 733729ddf77094ba…

MALICIOUS

PDF

41.3 KB Created: 2020-08-02 19:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e44af4fda3ebc12314ce1865835328c7 SHA-1: 4c0311b1420f5e6b718dd805b4f17103457a2a20 SHA-256: 733729ddf77094bae3ba7eb3e021e4141e282783c94d9b6d85156144d4b4463b
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=advance+map+download'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a link farm or phishing lure for free downloads. The ML classifier strongly indicated maliciousness, and the presence of redirector links supports a phishing or malware distribution attack pattern.

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.ru/pify?keyword=advance+map+download In PDF document text
    • http://files.arizonaclay.net/uploads/1/3/1/3/131383727/8f62fc4b6e.pdfIn PDF document text
    • http://files.carlyberg.com/uploads/1/3/0/9/130969080/jomusa-rapijimonemugud-mozovorap-sunogijip.pdfIn PDF document text
    • http://jawij.bexleynas.co.uk/uploads/1/3/0/7/130775403/14d44b7.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/1/0440/5913/2056/files/38630532603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8687/9651/files/zogonum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/monasejifunerojerivem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/fojemaxurafinalegut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8341/4169/files/duzegatiluvujuxatojowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77603652905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0996/5212/files/lezezuzir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5365/9798/files/38567996710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6151/8231/files/tagitulasigoxonajizunak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/nebotibosow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/tuditevogadovezanunetifu.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 6

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_off00006464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6464 5088 bytes
SHA-256: d370ae8a1d4d2644ef4274008c70ee5ca9579249a3e9de23fbf27ad5b2ca6209
font_01_sfnt_off000075b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B5 10272 bytes
SHA-256: 1c15699dadcab0b3f0bf2cfbec74ee84822e50d9b1c652e2d3ba54092666e011

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