Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d6224607fa923d…

MALICIOUS

PDF

42.8 KB Created: 2020-08-07 13:44:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f04774b570d7ddd2b2159ddab46afff SHA-1: 6dcda1d81dc00c118f8eab0f04f0ba0049bdd90d SHA-256: 62d6224607fa923d724b0c444aec07457bb0d0727236d98a795080117da3dc8f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a primary redirector identified as 'https://ttraff.cc/wb?keyword=income%20statement%20items%20pdf'. This redirector is flagged as malicious and part of an SEO link farm, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, also contains references to this redirector URL. The presence of numerous PDF links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/wb?keyword=income%20statement%20items%20pdf In PDF document text
    • http://files.londonsdj.uk/uploads/1/3/1/4/131437657/xiletojipi.pdfIn PDF document text
    • http://files.baldwincountybossbabes.com/uploads/1/3/1/0/131071157/xokuputab-fiwalanipowupij-zuxazejibo.pdfIn PDF document text
    • http://files.rebeccabryant.org/uploads/1/3/1/4/131453733/9214773.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/1/0431/6141/9927/files/boxuwot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/all_algebraic_formula_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5020/4316/files/folerasum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9232/7077/files/61468399062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/jaliwapivafunewawap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/dodunulaledatuxuxibetal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4634/5640/files/delinedel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1073/5780/files/getowezemonowup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6716/2276/files/46969554373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8772/2648/files/john_deere_440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1741/8405/files/55805413659.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 4

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_off00006b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B51 5108 bytes
SHA-256: ea699074a6344eb2572531356ff84ab4206b932922f6c9df6120a7f1ac41e3fa
font_01_sfnt_off00007ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA7 9976 bytes
SHA-256: 6b433326fef86a7197b21126909701674dc09df79d725ebf864a6f9c9cbd7456

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