Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfea883d947b6a32…

MALICIOUS

PDF

42.8 KB Created: 2020-08-18 18:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6198b88469cc703a4a46582557e1e002 SHA-1: 89edaefd326762f4ea02d3a9cce224ab288cc6bc SHA-256: cfea883d947b6a32a4ed5d7d71bd04e711e8054dce5529c082a7573c62db394b
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'cea regulations 2010 pdf in english' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm heuristic further indicates a malicious intent to distribute links.

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=cea+regulations+2010+pdf+in+english In PDF document text
    • http://zasez.newmarketcrossfit.com/uploads/1/3/1/4/131406676/rekuta.pdfIn PDF document text
    • http://bobeb.mastergardenerscabarrus.org/uploads/1/3/0/9/130969300/b5dd10866c1ec3.pdfIn PDF document text
    • http://misigi.stepin2myoffice.com/uploads/1/3/2/7/132710712/zilenukomigujuse.pdfIn PDF document text
    • http://files.torontochiropracticcentre.com/uploads/1/3/0/7/130775758/8772828.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/1/0433/9807/0426/files/pony_creator_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/23512720061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5190/8249/files/59350419341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/38705865840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3371/4070/files/30366202813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/cfm56_5b_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/expresses_idiomticas_em_ingls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/24988990539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/43322494982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/nomenclature_of_alkanes_worksheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 5532 bytes
SHA-256: 8613c52d7f8d7e3bf300d20970636d490017c68e1f254523affe149aa091c702
font_01_sfnt_off00006e86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E86 9908 bytes
SHA-256: 90b22eb96b0e40863ba2d26de631bc849dbfb65eddbda0faed1b0706731d5aed
font_02_sfnt_off0000906b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906B 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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