Malicious PDF — malware analysis report

Static analysis result for SHA-256 bba202c7bdf574b5…

MALICIOUS

PDF

38.3 KB Created: 2020-08-10 05:36:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb3055df5f4ca904eb2423618114a6d0 SHA-1: 92b4083f1001c8aedc8a3d38a7101beee952bb7e SHA-256: bba202c7bdf574b594f70c5cc79be6ec0782115253c32cb4334cfd38e368a171
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'lighting busbar trunking system'. The primary attack pattern involves redirecting users to potentially harmful websites.

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=lighting+busbar+trunking+system+pdf In PDF document text
    • http://files.salon-alphonse.com/uploads/1/3/1/4/131452902/50671.pdfIn PDF document text
    • http://files.valleypetservices.net/uploads/1/3/2/7/132712324/jowigobulatezuberizi.pdfIn PDF document text
    • http://bikaz.durangorocks.org/uploads/1/3/1/8/131857920/4739321.pdfIn PDF document text
    • http://sukigofol.scillyholidaycottages.com/uploads/1/3/1/4/131437657/9140168.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/1/0433/0687/7080/files/96617946950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8907/5102/files/miwudevosolopan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/bayes_probability_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2191/7598/files/15858720489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/17394686213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/lugovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/90266616653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/rafilusexojerawipalivug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/rarujitijosadigalanobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0780/9448/files/95210064732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/kigatuwa.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 5

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_off000055aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55AA 5672 bytes
SHA-256: a17b231ad32014259861f90e8b4205d4d8760105eea9de6b9c0149f63a938cff
font_01_sfnt_off000068dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DD 10376 bytes
SHA-256: 747f285b479d8977fa0f6c759b54599c636ddfac61f4fa4346553c866fe914f0

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