Malicious PDF — malware analysis report

Static analysis result for SHA-256 0022bb3aa627ff79…

MALICIOUS

PDF

57.1 KB Created: 2020-08-13 10:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eebdfcca0e9d5a885aa01f744270a58d SHA-1: 5f319622d5edc44f5bde6de30260e1d27fe5c4cd SHA-256: 0022bb3aa627ff79a3cdbab3e11aa86ba3790c46f2889334c268ac270c5008c2
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 part of a link farm designed to appear as legitimate PDF downloads. The primary malicious link, https://ttraff.com/wb?keyword=turismo%20na%20ilha%20de%20mocambique%20pdf, redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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.com/wb?keyword=turismo%20na%20ilha%20de%20mocambique%20pdf In PDF document text
    • http://files.alpinespringscounseling.com/uploads/1/3/1/0/131070011/marisipitigurarero.pdfIn PDF document text
    • http://vamakaku.jakiaracrew.com/uploads/1/3/0/7/130739591/1988605.pdfIn PDF document text
    • http://saloxi.onpointgreatdanes.com/uploads/1/3/1/8/131857101/rovokodu-texotiboj.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/1/0437/7188/7767/files/95019309401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/kohler_courage_20_carburetor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4849/2438/files/historia_de_la_tecnologia_educativa_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/zetokawobasesikasomad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/92224860980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/29850915421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/95911883548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8113/7316/files/zirosidivotadun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/1200981650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/puwifezonuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7385/8710/files/chalcedon_council.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/19764009676.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 4

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_off00009af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF0 5612 bytes
SHA-256: 5b96f7642d18b3e9d4266d7e0d268bc2faad045fa422c085d0b350a5d24d6863
font_01_sfnt_off0000adc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC8 13272 bytes
SHA-256: 6483a249f36c2a9b2c023d7dffd5219a41bd84f97d7f04bec08d1e9a3d3c9315

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