Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a68342f458f6398…

MALICIOUS

PDF

55.6 KB Created: 2020-08-05 05:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0886ae3b478123672abdcd48fd74f41 SHA-1: 328aff229a50752d53a64f007c529ae20299c6d4 SHA-256: 0a68342f458f63982780f63ae219c15bf7957b5f21162df795266bdf939990c4
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary malicious link identified is https://ttraff.cc/pify?keyword=tabla+de+pruebas+bioquimicas+para+enterobacterias+pdf, which is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=tabla+de+pruebas+bioquimicas+para+enterobacterias+pdf In PDF document text
    • http://files.evictory108.com/uploads/1/3/2/6/132695258/bupamigoxeriju.pdfIn PDF document text
    • http://files.knightoncommunitycentre.com/uploads/1/3/0/7/130775672/fakimasa-wuxepet-ruxese-ropifopekejevo.pdfIn PDF document text
    • http://files.native-beef.co.uk/uploads/1/3/1/8/131856195/34bcfb8a960be.pdfIn PDF document text
    • http://files.drfujinaka.com/uploads/1/3/1/4/131407424/ed9eb6b8.pdfIn PDF document text
    • http://files.miriammccormick.com/uploads/1/3/2/8/132815882/d870ae05d1a5.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/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4177/8838/files/shrink_high_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/64658078535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/xuvuzivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/rowikekixaxuzujovudenuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/fogewifakugobipefej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1718/1083/files/embed_in_google_doc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/87461928403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7826/3718/files/dolphin_emulator_xbox_360_controller_profile.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_off0000975a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x975A 5516 bytes
SHA-256: d2f19856b518293a4337658413c14bf20487ef0c64b22837ab1ecaa87dcc2870
font_01_sfnt_off0000a9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9FF 11656 bytes
SHA-256: 4c62137a04698a09846165753d11b62dd0769b6e67f21752bffd2d53491e0bb0

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