Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce57be944ec3e01c…

MALICIOUS

PDF

40.8 KB Created: 2020-07-31 16:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a3866ffffad33938d68be8d6ed28c03 SHA-1: 6909b3f0a68abae0fcfb739e36d565bc075e5437 SHA-256: ce57be944ec3e01ce0d07a4e87fe7fbcc436837eac85d12c142643dfc2cad352
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'chinese dirt bike parts' and the malicious URL. This suggests a lure to a phishing or malware distribution site. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or to obscure the final malicious destination.

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=chinese+dirt+bike+parts In PDF document text
    • http://files.mikewmorgan.com/uploads/1/3/0/7/130776054/4831202.pdfIn PDF document text
    • http://files.shoppureblossom.com/uploads/1/3/1/8/131857193/451ac67ac2287.pdfIn PDF document text
    • http://files.cindylauriephillips.com/uploads/1/3/0/8/130874250/kokemilokem-meguvuwimetu.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/1/0430/4489/6925/files/84665960128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/78684911927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/59280523300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9983/1968/files/89696536690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/dagexinunowejobolewafav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/rifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4800/0927/files/29491729163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/fujovisaxidamofazokazux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/sewefeloluguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62856854762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/42957078354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7706/6135/files/pufisuxinawitilotiwuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/44105346874.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_off000062b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B0 5124 bytes
SHA-256: 9e0a25fa8b0db49087d3ce410a72a53e67ffd2a5f646713e8ac6ee1bcdbb39f2
font_01_sfnt_off00007401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7401 10040 bytes
SHA-256: 7e719ec21e0c34fb0b565e16cb30bb3ae10541fa85ff347c825a48062accd81d

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