Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1e8bd333381acf…

MALICIOUS

PDF

35.5 KB Created: 2020-08-10 17:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9586497d95e9ff795c30b0297fa5e968 SHA-1: 30b9eb531bef9eb9d427cb2c7bc9ac5472ee6fe5 SHA-256: 7b1e8bd333381acf647f7488d2e85fe56142d8c811d2128fe21f9199a967e2c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector infrastructure known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose of the PDF is to act as a lure, directing users to potentially harmful content or downloads.

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=los+milagros+existen+brian+weiss+pdf In PDF document text
    • http://files.bsmart.be/uploads/1/3/0/7/130739945/3591645.pdfIn PDF document text
    • http://files.davidemmons.net/uploads/1/3/1/4/131453698/31164a814ee7.pdfIn PDF document text
    • http://files.tucniagara.com/uploads/1/3/0/7/130740033/58967e0.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/1/0429/9636/7511/files/discrete_math_and_its_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/17533951208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/51312958273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/limigozoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/budget_spreadsheet_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1184/0927/files/check_stub_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3619/7542/files/buvuliroritemowidavizije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/57486707499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7840/1700/files/dobuwawesivofugovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/single_variable_calculus_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/nexurutimusefamowaliju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3599/5808/files/ubuntu_iso_to_usb.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_off00004adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADC 5604 bytes
SHA-256: 051cf47602a5dc7deaff88a24bd6167a1515545a25bb20caa7de8ef95c7cd056
font_01_sfnt_off00005de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE2 10792 bytes
SHA-256: e4d1a1f73322fe1bd34b45d5f4d4a9f9ec461b89f5e809889e3bf4d655d8470e

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