Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9694186995bde53…

MALICIOUS

PDF

45.0 KB Created: 2020-08-15 16:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a6d2669221780047aec3df99fdcd668 SHA-1: a2880c524b3500c489689b3a5918d2d703def95a SHA-256: f9694186995bde53a8b29227d46fc6c8c9b5afc2aed018c708c223c65cda4ee6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to hide malicious redirects. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=intergovernmental+panel+on+climate+change+report+2013'. The document body, though heavily obfuscated, appears to contain text related to a climate change report, likely a lure. The presence of numerous external links, including one to a malicious redirector, strongly suggests an attempt to direct users to harmful content.

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/pify?keyword=intergovernmental+panel+on+climate+change+report+2013 In PDF document text
    • http://files.adf64.org/uploads/1/3/1/3/131381450/gelotezatowewuxetota.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/1/0434/0508/2780/files/aprender_a_leer_y_escribir_japones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/33118510556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0358/4423/files/22461303044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gipal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/81790735380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/jotabab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/25494233442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6032/files/huffman_coding_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2103/files/java_tutorial_oracle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6737/5777/files/22225643219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9927/files/mutokofofijefivijamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/slendytubbies_2_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/wazekus.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 3

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_off00006f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7D 5656 bytes
SHA-256: ec790e4c97e35888033981e765fc0d9dfc30a5a0edd4e44c6d4860b5d6c7fdf7
font_01_sfnt_off00008294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8294 10476 bytes
SHA-256: b64e30330ee8cc93b4d82058200b7c621b63a710d89c146b00bbeb94695890bd

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