Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3d53db5cf46bda…

MALICIOUS

PDF

45.1 KB Created: 2020-08-03 13:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21775ec7145bcc8042e91357861ee566 SHA-1: 819926daaf7be53da7998460de44336737befbce SHA-256: da3d53db5cf46bda311744c562d518a2c2255b9210c4d8b90e231ea65bdc1ffe
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to 'ttraff.cc', indicating a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting the primary goal is to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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=all+types+of+candlestick+patterns+pdf In PDF document text
    • http://files.bonafidefiction.com/uploads/1/3/0/7/130776219/lezim.pdfIn PDF document text
    • http://files.outlandish-photography.com/uploads/1/3/0/7/130738803/zemotawav.pdfIn PDF document text
    • http://files.claudyjohnmitchelsgac.com/uploads/1/3/0/7/130738803/rijad.pdfIn PDF document text
    • http://files.mektool.com/uploads/1/3/1/4/131437385/dalof.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/1/0437/9482/5376/files/99833329672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/31072671266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2293/1352/files/95096734605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9471/2228/files/37845716070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3759/7591/files/video_girl_ai.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/16535672228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/jafopodomadukeruzujajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8377/5643/files/govujalutotozupokasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1607/5939/files/6071040810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/93990523528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1464/files/vizuvanidijaberatumuvas.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 5

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_off0000724c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724C 5304 bytes
SHA-256: 5a6a17165bc689857b12d1b93f37c5175e656ec0be25f5b4267f595e3a5c1419
font_01_sfnt_off0000847b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847B 10136 bytes
SHA-256: 2fabfdbd94d326ecee0832a93dfa1d43f00921d0ecde247b3965838269dff54e

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