Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb1aba84ffa70071…

MALICIOUS

PDF

51.3 KB Created: 2020-08-15 22:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7c84d753b855c544f9639afbdf7a285 SHA-1: 3fe0446209c738ee1855cf8840a87e44bb99648a SHA-256: bb1aba84ffa700713ecc4c8c33345ecc30e58c6934138dc6c22522d029b38a87
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.ru/wb?keyword=revised%20phil%20iri%20manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, also contains the primary malicious URL.

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/wb?keyword=revised%20phil%20iri%20manual In PDF document text
    • http://files.rdadivenet.com/uploads/1/3/0/7/130739697/4159791.pdfIn PDF document text
    • http://jixopuxod.theoec.ca/uploads/1/3/2/8/132815986/boluxodewaxa.pdfIn PDF document text
    • http://kizixij.breakicemarketing.com/uploads/1/3/2/8/132814930/riwajotediz.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/1/0444/3789/7383/files/52140291854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuxojusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2809/3850/files/28885120221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6315/6641/files/juzuxipulemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/99848673684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/lulidovewowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/branham_sermons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kofuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2935/1835/files/punax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/8466/3208/files/biosynthesis_of_proteins.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_off00007d66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D66 5264 bytes
SHA-256: d0245c6d8bf32401d8fb2beb3805e4c04c24956f2126511b16bc0ebf0fbc9cfc
font_01_sfnt_off00008f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F28 16152 bytes
SHA-256: 8714aa2d09ab95633bddd9b61a502b6459817df681798c35125e85b108da61b7

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