Malicious PDF — malware analysis report

Static analysis result for SHA-256 e56593228f2a05ef…

MALICIOUS

PDF

39.3 KB Created: 2020-08-09 06:02:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdf3e121a5e495cd518817d950dca619 SHA-1: 2961feca1fd974ad3b9cc95fd9d5b5534a790abd SHA-256: e56593228f2a05efa24450ff94b33556bc2dcffd89f999f4adbda31338c342bb
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, and another identified a large link farm. The document body, though heavily obfuscated, contains text related to 'spherical bearing size chart pdf' and a URL that appears to be part of the malicious infrastructure. The primary attack pattern involves luring users to malicious sites through a deceptive PDF.

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.cc/pify?keyword=spherical+bearing+size+chart+pdf In PDF document text
    • http://zukuwut.californiatradewinds.com/uploads/1/3/0/7/130776257/b810465860ba.pdfIn PDF document text
    • http://situviwu.simpsonchorus.com/uploads/1/3/1/0/131070161/dagabo-gadixazito-pebujapoxob-xabumaxivu.pdfIn PDF document text
    • http://files.pacificmotelandrvpark.com/uploads/1/3/1/3/131379948/19df3b8ed72c.pdfIn PDF document text
    • http://files.lillyotasevic.ca/uploads/1/3/1/3/131379456/e9bed3.pdfIn PDF document text
    • http://files.laureatetranslation.com/uploads/1/3/0/8/130814308/7542172.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/1/0431/6063/3504/files/67089311599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/28595013392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3446/0828/files/94560802353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/78318068265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/4168811451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/gumul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3228/9180/files/ralodutul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/characterization_of_lactic_acid_bacteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/22308389156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/oral_b_triumph_professional_care.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 8

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_off00005a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A71 5712 bytes
SHA-256: 2978c148940bc6106c437148f7720096a118e7d3862cfa0c45ba7bca6b181bdf
font_01_sfnt_off00006de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE0 10360 bytes
SHA-256: 10cea1e4bd38cb81eedc3140e464033f855061222bf0b1032cac18d8fa11f314

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