Malicious PDF — malware analysis report

Static analysis result for SHA-256 20a7776e941a7443…

MALICIOUS

PDF

37.8 KB Created: 2020-07-27 03:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9180948a4d3c4029c73ea6b2d09c680b SHA-1: 162fcfd41c69fda278b1c3dfe2fc613ae52b84c7 SHA-256: 20a7776e941a74432bea4451e083fa1844dd63ec309e9442875f2004b4995b59
202 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, suggesting a link farm or content distribution strategy. One critical heuristic indicates a link to known malicious redirector infrastructure. The presence of a 'download button' lure further supports the malicious intent. No scripts were extracted, but the overall structure points to a phishing or redirection attack.

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.cc/pify?keyword=deer+zentangle+coloring+sheet In PDF document text
    • http://files.ocbssolutions.com/uploads/1/3/1/3/131379846/wumuz.pdfIn PDF document text
    • http://files.wichitafallsbridge.com/uploads/1/3/0/8/130874058/3313912.pdfIn PDF document text
    • http://files.realifewsp.net/uploads/1/3/0/7/130739789/455ec265fa2.pdfIn PDF document text
    • http://files.infinitywellnessconnection.com/uploads/1/3/0/7/130775025/tomewigijokitu.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/1/0437/5281/6798/files/65686601939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/norunojinufezivivoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6903/1078/files/49451130753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/52315938748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/pagejituvokuraxeguluzewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zukax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/95809033423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/13867263079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1676/5088/files/88208297011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6995/files/wogix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/derakotirivobobivoxusasaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/72294594580.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_off000059db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DB 4900 bytes
SHA-256: e521cf9e2fc3c94ae361d745b32d13d706db8ed760b0d64c9ffe971ac4e6ab6a
font_01_sfnt_off00006a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A78 9336 bytes
SHA-256: 14e22fd59a916832a0acc0aa0443d29bcd4e39d4999df7fd0b066aaa1d7fbcd9

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