Malicious PDF — malware analysis report

Static analysis result for SHA-256 866c727d9f076f24…

MALICIOUS

PDF

46.7 KB Created: 2020-07-30 16:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1797915f103ede95e1b918091c346d3 SHA-1: 4c1bc77a38fa471eba1eb12d3f5d5ed872b82882 SHA-256: 866c727d9f076f2458a62b758db4ecf04159e39b55b79cab0b4987ef5a648d7f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=contaminacion+por+botellas+de+plastico+pdf`, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'plastic bottle pollution' to entice users to click these malicious links. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards a distribution or phishing campaign.

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=contaminacion+por+botellas+de+plastico+pdf In PDF document text
    • http://files.ninelivestwine.com/uploads/1/3/0/8/130874629/vezik_gunefitotokek.pdfIn PDF document text
    • http://files.feathersalliance.com/uploads/1/3/1/6/131606492/rixik_joxawobife_kofido_xogixo.pdfIn PDF document text
    • http://files.pinkcheeksbymadeleine.com/uploads/1/3/1/1/131163976/00d756d3e386.pdfIn PDF document text
    • http://files.tvhsbasketball.com/uploads/1/3/1/3/131384635/gibuzafa-pejomewigejuru-xeduxojipaxas.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/1/0429/7618/2426/files/30233098108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0583/6444/files/99125572978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/75569306837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/70012703851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/xewajot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/zezulawuxigaxanabuxuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/juzijogaxeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/bejipogilipewejirivit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0633/6930/files/14048120652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/386383019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8289/0918/files/7422513020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7129/9999/files/69639291352.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_off0000752b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752B 5252 bytes
SHA-256: 2b4adab92286cb99f19945fd601e5da2d75546e1996542898711b589d184e8aa
font_01_sfnt_off000086dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DC 11364 bytes
SHA-256: 6c5949d8b1b87c4439678e87308a4f1d47b57ae61873a0ae7bae368d7aa2455d

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