Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aca33c1c19a619a…

MALICIOUS

PDF

39.7 KB Created: 2020-08-28 11:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f41cfc63a43b932e594d2ec6e4e7ccf SHA-1: be4ba7fec65aca622eefbfd258293f22b7863cea SHA-256: 9aca33c1c19a619a41532e70fc485632db0e9828ee434da971fdfc06b69a67d1
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to create link farms. One of the primary links, 'https://ttraff.com/pify?keyword=loud+turn+signal+flasher', is flagged as a malicious redirector. This suggests the document's purpose is to lure users through these links to potentially malicious websites, likely for phishing or malware delivery.

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=loud+turn+signal+flasher In PDF document text
    • http://files.lotusenergyandmassage.com/uploads/1/3/0/7/130739744/kopusovugiboj.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/1/0431/2154/1269/files/8002678461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/9904967293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3507/3440/files/60291909130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/68420946984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/tefixugajewulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.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_off00005c26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C26 5112 bytes
SHA-256: aca09f3f1416ef01f78e0733b80eca8db2e310557c727230554bdedf6d363aa3
font_01_sfnt_off00006d80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D80 11000 bytes
SHA-256: bc269002e038859a71b834f61da608d505287292c22327411ad9ae6617cf9ef8

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