Malicious PDF — malware analysis report

Static analysis result for SHA-256 727d22f576476a48…

MALICIOUS

PDF

46.6 KB Created: 2020-08-09 08:33:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a9877c8b7aa32181a4a26a9e6f613b7 SHA-1: cd61c163a332237e442bcf1958f9e3e0da751357 SHA-256: 727d22f576476a481a19147c9eb3d4ee6c3593a718b8282955cd416becb5b410
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one prominently redirecting to known malicious infrastructure. The document body and heuristics suggest a lure for users to download potentially malicious content under the guise of an NDA agreement. The ML classifier strongly indicates maliciousness, and the presence of a redirector points towards a phishing or malware distribution attempt.

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=nda+agreement+template+pdf In PDF document text
    • http://files.monitzvocalstudio.com/uploads/1/3/0/7/130740065/kopanusasizer-rovudiburuxi-zikifove.pdfIn PDF document text
    • http://dabakub.performancevistas.org/uploads/1/3/2/6/132681409/vowerenakep.pdfIn PDF document text
    • http://files.yorktowngirlscouts.org/uploads/1/3/1/0/131070483/gitibikir_bukugiraxevafo_kudajomafipumo.pdfIn PDF document text
    • http://bikebus.toddbennethum.com/uploads/1/3/1/6/131606165/kezoxowolarula.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/1/0433/9076/3175/files/51855177476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/wuxit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1666/7814/files/tibusojudozagufaboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/nubenefibisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/zijasod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/appsc_group_1_syllabus_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/zexusexesugepana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/53409929289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/zuromuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1065/3338/files/sidetukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7840/1700/files/55050361499.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 1

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_off0000788e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788E 5152 bytes
SHA-256: 5436ab7ac051e2f23ad9081422bf5a95d3392c8c1ec823ef1bf48be2f57ad450
font_01_sfnt_off00008a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A07 10396 bytes
SHA-256: 318ec9814b0c851df03793df1ba766e926ffbbac9c8ad50664764eeeb5900f93

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