Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0465a5469add58…

MALICIOUS

PDF

48.6 KB Created: 2020-08-19 09:52:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0376bb0793a339e521648b015048e31 SHA-1: 5d91e0093def95415ad3dbfaf09c30ed2330eed9 SHA-256: 9a0465a5469add58b5b4da04316eb6c8e5a379e1b21a87d15dfba51661d1b33d
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traff.cc, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to a movie lure and the malicious URL. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The ML classifier strongly indicates maliciousness.

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=movie+korea+after+love+sub+indo In PDF document text
    • http://nawilemo.charlidrawz.com/uploads/1/3/0/9/130969352/jerirededinali-vulagufolepi.pdfIn PDF document text
    • http://files.akasl.org/uploads/1/3/1/6/131608016/4072a.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/1/0434/7478/0312/files/middle_school_math_brain_teasers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8542/files/43875517194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/niwufuduroxado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/fefukamibuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3090/7813/files/31609740079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7508/3171/files/zegapemejenarokakafebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/amazing_grace_classical_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9910/9016/files/statistical_quality_control_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/denopuwo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D91 10356 bytes
SHA-256: f1b484670a35df563c93758acb2565cdbdad39ed08588d49d14a92b46a173c5b
font_01_sfnt_off00007fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC4 5168 bytes
SHA-256: 831fd135d773b02d86f15d9191863a0e4288fa723ce5353e680619374c83da71
font_02_sfnt_off00009172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9172 10084 bytes
SHA-256: a355fff82c79b2ed939115d67a349fc2fe8139108dcab8cc7b035c730982370a

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