Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8dad96ced425252…

MALICIOUS

PDF

32.3 KB Created: 2020-08-20 21:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe3ca19f56a51e198289a0691168fa2a SHA-1: cb1c29da29b71b9144c9c390aa9956a38d6a2a9e SHA-256: c8dad96ced425252067f926207b82f24e2b52632362fdc101b9d2eabe5ab8aac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary malicious link points to a known redirector infrastructure. The document body, though heavily obfuscated, contains the malicious URL and references to 'despacito backing track', suggesting a lure. No scripts were extracted from this sample.

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.ru/pify?keyword=despacito+backing+track In PDF document text
    • http://pisul.holdingspacedoula.com/uploads/1/3/2/6/132681670/083eb8b8d0.pdfIn PDF document text
    • http://files.kodleague.com/uploads/1/3/0/7/130740589/6315993.pdfIn PDF document text
    • http://vomedezon.somethingsoldsomethingsnew.com/uploads/1/3/0/8/130873877/4642869.pdfIn PDF document text
    • http://mepure.empoweredbyloveministries.ca/uploads/1/3/2/6/132681670/wogep.pdfIn PDF document text
    • http://files.rto2go.com.au/uploads/1/3/1/4/131453990/libojafowede.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/1/0433/7503/4520/files/83489861707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3066/5637/files/best_platform_bed_frame_wood.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0133/files/past_tense_and_past_perfect_tense_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0088/8469/files/votigotikajiwepupijuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7542/6721/files/arthritis_uk_back.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/59842315461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/53106893857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82191842179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/tawezipuluxogevopapasatak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/lowes_bellefontaine_ohio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/rutogimaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9623/files/final_fantasy_14_act.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_off000043cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43CB 5272 bytes
SHA-256: 80ea80c7453944cadb92dabab4bfcc0215413a6d31cb82ad5a53dbe880fae641
font_01_sfnt_off000055c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C5 8908 bytes
SHA-256: 2554aac01e28b030dbe2e01675a97e695ebe34973081d61d80e24b8546a454c5

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