Malicious PDF — malware analysis report

Static analysis result for SHA-256 f76e0fcead4a7e12…

MALICIOUS

PDF

38.5 KB Created: 2020-08-06 04:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d64245e39f4dbe2e282b30d8706ec427 SHA-1: 6883a84eb4848debece2de5001b42afb93a8077e SHA-256: f76e0fcead4a7e12f623abe7159ee1ff28de689199ccd35bb52802b58940202a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to a 'Skoda rapid rider brochure pdf' and the URL itself, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning and driving traffic to malicious sites.

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=skoda+rapid+rider+brochure+pdf In PDF document text
    • http://files.redbirdvocalmusic.com/uploads/1/3/2/7/132740424/8575921.pdfIn PDF document text
    • http://files.themassageplacesp.com/uploads/1/3/1/4/131410234/1072164.pdfIn PDF document text
    • http://files.preliminarygeography.hsieteachers.com/uploads/1/3/1/3/131398347/1105987.pdfIn PDF document text
    • http://files.callihanscache.org/uploads/1/3/0/7/130739715/depit_bimukekexo_jufiv_favevurosovi.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/1/0435/1164/4324/files/cuisinart_automatic_grind_and_brew_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3404/8669/files/a_weekend_in_the_country_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nalekubaserigudopen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/dazudekod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/mupowijizexapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/zogaxiduvola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/small_estate_affidavit_florida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/44169930453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/javepipafepizazadevuzug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/26136226954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/mexelejorulixovonatipel.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 7

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_off00005987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5987 5340 bytes
SHA-256: 91b98df00aefb17bd3177fef92f31b156da8eb54143363bfd17770fe29dd73a5
font_01_sfnt_off00006bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAB 9776 bytes
SHA-256: a98cb4f76623bab24b2ebeb1e7c6f8cd8b95e28dd2feebed35b29e520e7f1d2e

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