Malicious PDF — malware analysis report

Static analysis result for SHA-256 caf75415025a81f0…

MALICIOUS

PDF

38.8 KB Created: 2020-08-19 09:32:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 593d27dd92d7eed24eed1045e147720c SHA-1: 6a63e0abd0bc9b45353f4b06cb43b2b1f40101b6 SHA-256: caf75415025a81f0425dc6adef5aaf1acd8be1a8d64d0efed0c8d0891906b5dd
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Countdown clock powerpoint template' and embeds a link that redirects to malicious infrastructure via ttraff.com. This indicates a phishing or social engineering attack. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination. No scripts were extracted from this sample.

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=countdown+clock+powerpoint+template In PDF document text
    • http://files.mackbuildltd.com/uploads/1/3/2/3/132303077/9ad5265.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/1/0431/5345/7320/files/toyota_hiace_camper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/94849076626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/cain_and_abel_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/2014_chevy_spark_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/dovim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/32639790313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0684/3288/files/lovutapejukodem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3581/9164/files/vurusarizalot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62894204366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2904/4127/files/45538250047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/recent_ielts_listening_exam_questions_with_answers.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_off00005a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A46 5104 bytes
SHA-256: 6e6d3d8942e63f6afbf579119a291197e7073022bd73b3e9a0688c83d511df84
font_01_sfnt_off00006ba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA0 10284 bytes
SHA-256: 0c29d7a9feb5e0a4b3e22c7dad7edf735a07844b5945f054adc3270386d82987

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