Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca3b63d5ddc806f…

MALICIOUS

PDF

36.3 KB Created: 2020-08-28 01:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84e9fb1b190940ccfc16692e55328cf8 SHA-1: 35be4a5b9201f8328e6f1108575ae67755b69bda SHA-256: 2ca3b63d5ddc806fd8496d6bd5bffc1d33d1797e876e895f1bb57b2b07969208
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though partially corrupted, contains the URL https://ttraff.cc/pify?keyword=master+of+the+wind+lyrics, which is likely intended to trick the user into clicking it. The file also exhibits characteristics of a PDF_SEO_LINK_FARM, with numerous embedded links, suggesting a broad distribution attempt. No scripts were extracted, and the primary malicious behavior appears to be redirection via a 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=master+of+the+wind+lyrics In PDF document text
    • http://files.mypurplelilyboutique.com/uploads/1/3/1/4/131408056/vokixidu-tekemajofepof.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/1/0433/5514/4347/files/guwinatigoxabowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/10066315218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/20088765942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5955/9065/files/bapiparepebewusizopaluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/18615768942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/9038854805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6099/2927/files/c_o_c_hack_version_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/88565823268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/javepikapogog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/fetaduja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4920/files/weather_report_for_foxboro_massachusetts.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 2

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_off00004e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E93 5308 bytes
SHA-256: dc25c01b9aef402a54046514d3560bf8778a76002fa63c81bddfea94297aa621
font_01_sfnt_off000060b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 10620 bytes
SHA-256: d1ac7ea8cf27b245ed45e7b4bce5aa3675403b0af6d66c32647b757ecdcf29cc

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