Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb5e80e17162f2f1…

MALICIOUS

PDF

46.8 KB Created: 2020-08-29 21:58:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2947c7782bdc3aa7a6bb2dd40696ebe2 SHA-1: f2fc9eb42db9d00468d4acafd8c742ed0ed45015 SHA-256: bb5e80e17162f2f1dc77374a3ce9195c965219709d6a15eed73280cfcd78316e
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as an educational worksheet, but it redirects to a malicious URL. The primary malicious URL identified is https://ttraff.cc/wix?keyword=onion+root+tip+mitosis+worksheet+ans. The PDF structure and embedded links strongly suggest a social engineering attack aimed at redirecting users to potentially harmful content.

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.cc/wix?keyword=onion+root+tip+mitosis+worksheet+ans In PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/4521/5656/files/89152053541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/923229711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8803/0370/files/50034124941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/nozetige.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2892154f766246d3b66d0559a4267bc0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_65dd4643af9f455c84a9920ba3ddc9b8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bab8d139f16d40d2aa89387052243d87.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/06497e_960d2000592d4af38885a49f26aa5a1d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1462/7223/files/49640779937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7960/6177/files/vertical_banner_template_psd_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6546/6270/files/texas_jurisprudence_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4722/2422/files/95969453751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/26638057451.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DF 1696 bytes
SHA-256: 0727529401fe802ed9d02ac4b3bed84f53da9d0a5838f1dab7fe2f7579417e88
font_01_sfnt_off00007909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7909 5212 bytes
SHA-256: 976ec2d8f34e7f74ab2685e370d32c64e6184d72603c48cd4bc23ac1e016a8d6
font_02_sfnt_off00008aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA1 10420 bytes
SHA-256: 5c88fdff1e2bacd22fbff638039245af86d40e72c8d763b99f6101e16d50c1eb

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