Malicious PDF — malware analysis report

Static analysis result for SHA-256 32fe4e98ed15ab90…

MALICIOUS

PDF

39.8 KB Created: 2020-08-06 06:19:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 271ec3af4bf2cf97345f0f9f2a4d7f68 SHA-1: fe0ff84b6b6e36359322f02cfc5b73c51a886766 SHA-256: 32fe4e98ed15ab9082d816cee2c4fbf1d6514d5b9063aef06b6da2767e091e9e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.ru`. This redirector is disguised with a keyword suggesting a legitimate document, "blood test types pdf". The ML classifier strongly flagged this PDF as malicious, and the presence of a malicious redirector indicates an attempt to lure users to harmful content.

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=blood+test+types+pdf In PDF document text
    • http://files.pennjournalconlaw.com/uploads/1/3/2/6/132682694/bawibixijuzawo.pdfIn PDF document text
    • http://files.jerrianns.com/uploads/1/3/0/7/130776037/9171495.pdfIn PDF document text
    • http://files.tacticalinsider.com/uploads/1/3/0/9/130969312/69fc1b.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/1/0437/8466/7297/files/radoraxafokugasaxekoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/86575824165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2391/6443/files/mathematics_project_models.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/differential_calculus_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7124/2389/files/xixafadexemuxemijivatalun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/munabozinagut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9829/1870/files/futex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5202/3458/files/kitetotalejasarapagov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5218/7298/files/womesede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/memajasop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/96879562124.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_off00005f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5A 4880 bytes
SHA-256: 2f82c6eb60962e377daaca5fb91880c247a6d61ff66ac16bbc51e38033f35cf4
font_01_sfnt_off0000701b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701B 10232 bytes
SHA-256: f02b8f40d3a1ca7f5b95f95b3552c7f698d667d01babe426e98e5f4c111c54a2

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