Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c51b5077a2695da…

MALICIOUS

PDF

42.3 KB Created: 2020-08-08 23:37:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0110f0064ed5cf7b3f98934fcc5bf71c SHA-1: 54c3811c96af645ea7e4264d970636a7547bf806 SHA-256: 4c51b5077a2695da60a48865cb2b3e6723eb625ad5ef39b530dded1e9e0472be
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/wb?keyword=tutorial%20crud%20php%20mysql%20pdf'. The document body, though heavily obfuscated, appears to contain text related to 'tutorial crud php mysql pdf', suggesting a lure to disguise malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve search engine ranking for malicious content or to distribute malware.

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/wb?keyword=tutorial%20crud%20php%20mysql%20pdf In PDF document text
    • http://files.whatnotservices.com/uploads/1/3/1/4/131406537/jogizogofiligofubobo.pdfIn PDF document text
    • http://dofifew.carnabyscooters.com/uploads/1/3/0/7/130775732/bafez_wupubib_lumetemodulim.pdfIn PDF document text
    • http://files.pieceokake.org/uploads/1/3/1/8/131857334/2666495.pdfIn PDF document text
    • http://rixovo.oneplanetsaanich.org/uploads/1/3/0/7/130738848/jefoxokijopes.pdfIn PDF document text
    • http://files.enelectuas.com/uploads/1/3/0/8/130815228/1223ff0e.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/1/0434/2457/9736/files/11177692745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7717/files/53595131078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/zutipijav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2727/4645/files/learning_and_development_framework.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8253/1481/files/siguvafufodurokavidovifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85986419962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/bojupekekasuxipofebesafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/faridajebef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/zefudirukafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3747/4466/files/3793007612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/luxozibexo.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 8

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_off00006789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6789 5572 bytes
SHA-256: 254c335584fda95e85c85cefa894f5bd02706b9e9c08e06e014c410345305c00
font_01_sfnt_off00007a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A51 10048 bytes
SHA-256: c1ddd2c307e229160a5fb3428f349525b2c946806abecde7121a7dda7c191c6f

Open this report in the interactive analyzer, or submit your own file for analysis.