Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d008861fb4ae1c…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 06:41:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d28ad69e05d09c9e2d06e0b6d9e7d0c9 SHA-1: ec7ff9cbcc0c55ed79dea8d7335f123e37dac919 SHA-256: 47d008861fb4ae1cd2bddb146383bea1155e690d976cf2493017293f58d6ea7b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Laboratory report 6 epithelial tissues answer key' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates a likely attempt to deliver a second-stage payload.

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/pify?keyword=laboratory+report+6+epithelial+tissues+answer+key In PDF document text
    • http://files.griseldapuspa.com/uploads/1/3/1/8/131856121/masejowugudeno.pdfIn PDF document text
    • http://files.qldspruikle.com/uploads/1/3/1/8/131856232/2382f9f46954.pdfIn PDF document text
    • http://files.discoveryelectricbikes.com/uploads/1/3/2/7/132740375/4424646.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/79755681424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4363/3822/files/78305253204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1848/8741/files/prefix_and_suffix_worksheets_for_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0236/3047/files/baaghi_movie_full_3gp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/43982226385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/44562792977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/vodawozexula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/30990863851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/digital_logic_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/23163783620.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 6

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_off00005648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5648 5284 bytes
SHA-256: 16311a7bfb157ccb8a599ecde779a29a17ee9bb4d731533f0ca7cf8cfe37986f
font_01_sfnt_off00006849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6849 10192 bytes
SHA-256: 2b047f19684b1cb9463d917b4d2730759b9fbd3c68599811318a1ac08ba24955
font_02_sfnt_off00008b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B29 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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