Malicious PDF — malware analysis report

Static analysis result for SHA-256 34188b83104ad455…

MALICIOUS

PDF

55.9 KB Created: 2020-07-31 12:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 398c8649d4a97b0aaae52e1bd7bee6b3 SHA-1: 5b8ae88a9c7974c07baeda5daa21d9fdbcdac5b7 SHA-256: 34188b83104ad4550adb7eb7e043fffecaf4f030fdd466785ed5266a894c85c5
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.cc), suggesting a link farm or phishing campaign. The document body, though heavily obfuscated, contains text related to nursing and medication administration, likely serving as a lure. The presence of embedded URLs and the heuristic firings indicate an attempt to redirect users to external content, potentially malicious.

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=cuidados+de+enfermagem+na+administra%25C3%25A7%25C3%25A3o+de+medicamentos+pdf In PDF document text
    • http://files.storiesbeyondgender.com/uploads/1/3/1/4/131453605/cb41b7e522d.pdfIn PDF document text
    • http://files.ranchomiragehighschool.org/uploads/1/3/2/6/132683000/5297025.pdfIn PDF document text
    • http://files.crosscountryfarm.net/uploads/1/3/2/8/132815206/bexirodiwo-movemexa-gumometosexino.pdfIn PDF document text
    • http://files.pdxprays.com/uploads/1/3/1/3/131383018/wikixawasagi.pdfIn PDF document text
    • http://files.prosensecrc.com/uploads/1/3/1/8/131856279/jajojor.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/1/0428/3318/2886/files/wexipumiwamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/88243665755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/lakogegulutosisenaxela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/70600866799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/46462555871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/rafadepukimugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2531/6514/files/fovidalejij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6829/1232/files/lisavuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4507/5609/files/dezowesow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/ruzasotevuruvivoxojife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/82315962459.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_off00009485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9485 5848 bytes
SHA-256: 203900425b15cbb55119903b9032524e061dbb12b420f16ad2d58b698e1f2f60
font_01_sfnt_off0000a776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA776 13188 bytes
SHA-256: c8cb44e6582d6688c7386a80daf4ac1838356306ad2674459b88fac35c9d2d8f

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