Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da8c466eae5ad7c…

MALICIOUS

PDF

40.0 KB Created: 2020-08-15 06:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 473bd0ad922d3d46a1394b16268b585b SHA-1: 7a4b337d7eedb4e7f535529952740ce4214d7ef6 SHA-256: 4da8c466eae5ad7cd6768b1375bdf1c6e4428169dc747c569e61b5c0d7040740
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF redirector link pointing to ttraff.ru. Additionally, another critical heuristic detected a PDF link farm containing numerous external links, with the dominant host being cdn.shopify.com. The document body contains obfuscated text and embedded URLs, including the aforementioned redirector and several Shopify-hosted PDFs, suggesting a lure to external malicious content. 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=barish+ki+bunde+video In PDF document text
    • http://bitifap.christiancyclingtucson.org/uploads/1/3/2/6/132695384/c9cbfff12.pdfIn PDF document text
    • http://files.boyter.com/uploads/1/3/0/7/130739376/penosor.pdfIn PDF document text
    • http://files.littlervrentals.com/uploads/1/3/1/1/131163590/5471008.pdfIn PDF document text
    • http://files.peoplespotato.com/uploads/1/3/1/4/131438282/2624095.pdfIn PDF document text
    • http://sirudawet.mrstaylor-lc.com/uploads/1/3/0/7/130739059/lawozo-lumijupuxajok.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/1/0434/5469/3541/files/59058734052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4105/4105/files/loan_application_form_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/tokyo_esp_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/52445729221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/best_mage_leveling_spec.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0220/0223/files/51542743856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4288/2215/files/44919613503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/8994516866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/katagujuvaguledi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/15756464052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2191/7598/files/reading_and_writing_skills_deped.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5548 5196 bytes
SHA-256: 611e17aafb6aa65abccc979b8bf1b9995308c4e26147a1035b32fcc52b56f7f8
font_01_sfnt_off000066e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E2 14280 bytes
SHA-256: 90fa4d23d518d23cc5c3e02acd6a66b0b01421ce5593e21ce88931710a8018e0

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