Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f0847ec5864cae7…

MALICIOUS

PDF

43.0 KB Created: 2020-08-21 07:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 017e6b4c9cbfbd0ff0b653d806e993bf SHA-1: 562e1ed142741cc291ec09ed5b0964c4be137279 SHA-256: 5f0847ec5864cae7e9e36e960851bdfbf6e545ad0e0fd1ab48f4a79c0908760a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking Shopify links, suggesting a lure to a malicious site. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs and link farms points to an attempt to drive traffic to malicious infrastructure.

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=diy+cardboard+gun+template In PDF document text
    • http://files.nikatocouture.com/uploads/1/3/1/6/131606111/eef2a6841bb088.pdfIn PDF document text
    • http://files.hoggiesnetball.com.au/uploads/1/3/0/8/130874633/ad9f57d14d0.pdfIn PDF document text
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.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/1/0428/9835/8432/files/zugazad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6207/files/10522662802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/alchemist_guide_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6309/6984/files/32477901624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/65433022122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8343/9003/files/approach_to_fever_in_pediatrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6773/files/kigolurimevibubebikig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/obligate_mutualism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/rafuximiw.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 8

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_off00006842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6842 5456 bytes
SHA-256: de97084dbe5c724b84dafb8a844083653326de964e5da3b54499d27b1f5c2aff
font_01_sfnt_off00007abb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABB 10780 bytes
SHA-256: cca546638e71a6e099c7353b32b6f2732a1854beca3143ea337a584a78a3d80b

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