Malicious PDF — malware analysis report

Static analysis result for SHA-256 0facb1602b8a3437…

MALICIOUS

PDF

34.3 KB Created: 2020-08-05 10:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0cbb9ec5ffbcbae86899143a78083541 SHA-1: bcde91dcd8f411801bc3ed4333ba5d0e08310ea6 SHA-256: 0facb1602b8a3437704e8fba08dd129029ac5442e45ca45daffeabf5eaeb24b4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=anemia+en+el+embarazo+minsa+pdf'. The document body, though heavily obfuscated, contains references to the same URL and other PDF files hosted on Shopify, suggesting a link farm designed to distribute malicious content. 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.ru/pify?keyword=anemia+en+el+embarazo+minsa+pdf In PDF document text
    • http://files.whwax.com/uploads/1/3/0/7/130739254/6688178.pdfIn PDF document text
    • http://turipas.woodlandindianart.com/uploads/1/3/1/4/131408027/guvug-rizudegaluditu-vasab.pdfIn PDF document text
    • http://files.skyleblanc.com/uploads/1/3/1/6/131637034/sabosutukitikusuwiw.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/1/0429/1647/9132/files/3316207435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/87636832442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61066914906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/46223651468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5181/files/43556081656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6693/0840/files/rojedajekodale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/25936175801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/foliduges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/fulojas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/90646771485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6575/2217/files/vakijasudemimesunaduxowab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7037/1493/files/25262702066.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_off000045df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45DF 5368 bytes
SHA-256: c0c2052d37ee765795d572d73fa6c928b6c82d7bb864b96c81fa876a9f065584
font_01_sfnt_off00005804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5804 10796 bytes
SHA-256: dadae91817eb8586ffb3daa91608aa702a8c31757c688d761837103f3e847550

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