Malicious PDF — malware analysis report

Static analysis result for SHA-256 385db8209817ea94…

MALICIOUS

PDF

35.6 KB Created: 2020-08-20 19:16:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06c74f0fe5047f2bea9caf57e4f408e8 SHA-1: a139df5eef2dcfb0a1ef86fdfd345c4fe0924b72 SHA-256: 385db8209817ea9451fe6f6f954f5d187188eeca61836b8d3a244dc4b7267085
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 external resources, indicating a link farm. One prominent URL, 'https://ttraff.cc/pify?keyword=consentimiento+informado+prueba+de+alcoholemia+colombia', is flagged as a malicious redirector. The document body, though partially garbled, contains text related to a consent form for a breathalyzer test, suggesting a social engineering lure to encourage users to click the malicious link.

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=consentimiento+informado+prueba+de+alcoholemia+colombia In PDF document text
    • http://botevefev.cosmicsistershop.com/uploads/1/3/2/7/132712237/4c47ecdde78.pdfIn PDF document text
    • http://files.kbyron.com/uploads/1/3/0/9/130969966/0c7a26.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/1/0433/0877/7637/files/english_phonetics_and_phonology_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7157/0069/files/electrical_breaker_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/vezimud.pdfIn PDF document text
    • http://kunan.cdlynn.people.ua.edu/uploads/1/3/1/4/131437363/zibemodavujebajuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/product_catalog_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6975/5812/files/banshee_complete_season_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5584/0409/files/regovomokezumitipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9561/1805/files/rewezujapizetotanotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1401/0518/files/luwebenonokurakebijabemew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/warhammer_40k_aeronautica_imperialis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3419/8684/files/84594540008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9581/7382/files/borivakuburuxodunezuf.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 6

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_off000048d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D5 5440 bytes
SHA-256: c6fea09c343e161f27c2e38741e6aab89fea6be04f8e285c8ff5596ff71c254d
font_01_sfnt_off00005b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1B 11256 bytes
SHA-256: ded1ce06a28dfbec9e3425e457b1a53eb8a01807aafe0f438b05092c7cbfc174

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