Malicious PDF — malware analysis report

Static analysis result for SHA-256 880595f02d2595e5…

MALICIOUS

PDF

35.9 KB Created: 2020-08-21 02:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40cc62391d504496796ed0053c265157 SHA-1: 1905cea9027504d7b515eebb08518872da756c0a SHA-256: 880595f02d2595e5bf6c10248b1f47833a783e27453dbfc17903baf49266e036
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The presence of a 'download' button lure and the ML classifier's high confidence score further support malicious intent. The document body contains embedded URLs that likely lead to further malicious content or downloads.

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=ibps+guide+insurance+capsule In PDF document text
    • http://files.samandlorisduo.com/uploads/1/3/0/8/130813111/mojap.pdfIn PDF document text
    • http://kigil.surrattbooks.com/uploads/1/3/0/8/130813765/nunirazabo.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/1/0439/1380/5992/files/population_ecology_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/assignment_first_page_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8660/8536/files/milusovidebizuror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/gijozomebuwumuvapufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0020/9319/files/35371194612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/35949180284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1721/files/81427742281.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_off00004c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C0C 5316 bytes
SHA-256: 6ea4c55da6bfb1cb0a844b751494bf4a9fc2f909a6361dc0ad33e8be12c57b95
font_01_sfnt_off00005e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E18 10976 bytes
SHA-256: 5eaa15d296b91c9bf5e626b937e3c7b45066e5c6bfb8eacec1575cf17cf53246

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