Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd4827467c558e0…

MALICIOUS

PDF

57.0 KB Created: 2020-10-25 08:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 4316ca0bb9e317a11aab8f4d4fc157bc SHA-1: 9f84b03e1cd277362f47ddf55f095b0f39f61f9d SHA-256: dcd4827467c558e047c2db8726e441942892dede2a6672dd9519e4f73294ba7a
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and part of an advance-fee scam, presenting lottery or prize language with parcel delivery requirements. It embeds numerous URLs, including a primary redirector at https://cctraff.ru/strik?keyword=i+care+best+western+meaning, which likely leads to further malicious content or phishing pages. The document's structure and embedded links strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://cctraff.ru/strik?keyword=i+care+best+western+meaning In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375894/normal_5f8dfbc637a76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367281/normal_5f8864a8e170d.pdfIn PDF document text
    • https://vilujelirajoki.weebly.com/uploads/1/3/4/3/134378771/tapuxu-dudeniwiwurem-gisax.pdfIn PDF document text
    • https://tovalowu.weebly.com/uploads/1/3/4/3/134375552/vedupenixir.pdfIn PDF document text
    • https://rebolotor.weebly.com/uploads/1/3/4/3/134364816/xowaxufezav.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/xebigudemok.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/kigasetus.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/8276185f.pdfIn PDF document text
    • https://vuxilimibipemop.weebly.com/uploads/1/3/1/4/131453056/7954890.pdfIn PDF document text
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/2008938.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/laradusa/stories_for_grade_2.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/vamajokugupenad.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/bazedazubujatawek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/adverb_of_manner_worksheets_with_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7930/5890/files/stinkfly_ben_10_coloring_pages.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/74709586439.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/spanning_tree_protocol_commands.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/mogijikaze.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/rosefigarufasisaja.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDD 5256 bytes
SHA-256: a0c688b25b76eadae873cc70451d056b27f247b5efb74b2c7efe6a0c133785f8
font_01_sfnt_off0000afb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB8 12248 bytes
SHA-256: ea9057a5020201a20e72b42fcfedf5261a6bca63ab2d2af3a8eda9d153d812d9

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