Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf6724b4787b9e55…

MALICIOUS

PDF

45.5 KB Created: 2020-08-22 03:24:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fce58f248b732a2ad112cd6ec5a3cc29 SHA-1: efe9e5f5e932a7fab9762da385e82c78e38158ad SHA-256: cf6724b4787b9e55194daa9551981f8a0701d62861ece8c237ea5357904aa018
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'ID card psd templates free' and the malicious URL. The primary heuristic indicates the PDF links to known malicious redirector infrastructure, and another heuristic identifies it as a PDF link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=id+card+psd+templates+free In PDF document text
    • http://lezikoku.oxfordcoffee.com/uploads/1/3/0/7/130775379/0ce191ff.pdfIn PDF document text
    • http://files.moirsa.org/uploads/1/3/0/9/130969981/pukijalamagubabunu.pdfIn PDF document text
    • http://files.ellisensemble.com/uploads/1/3/0/7/130775429/vuluzuxajagozebovij.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/1/0433/7090/5750/files/fafiwajixupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/40243227054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4306/9858/files/41751936573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/22001394957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1335/5166/files/jabemedukabetimatik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/bmtc_bus_routes_and_numbers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/xifakusovevawaxuwesexugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/vulijipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8537/9237/files/software_application_developer_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5381/7749/files/libreoffice_templates_budget.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 4

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_off00006bd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD4 5236 bytes
SHA-256: 55d6bb24da0ad4cc17eb2a6692119099eeac96c9f9607a3c42b5ccb634b7a296
font_01_sfnt_off00007d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D86 13832 bytes
SHA-256: 997654ac33c0ecb427c083fe00ff5811c3bb17d1f3796ba8f1038abc501714a3

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