Malicious PDF — malware analysis report

Static analysis result for SHA-256 0acf2032c601de7b…

MALICIOUS

PDF

47.0 KB Created: 2020-08-23 12:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3746b7d77feea98146a0e8c4569c498c SHA-1: 66825d3128b81f003237d1724904efa2ba60be28 SHA-256: 0acf2032c601de7b2c11a2138f21f1075b895c452b56c69f93e3d405f42e3b15
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector infrastructure at 'ttraff.ru'. This suggests a link farm or phishing campaign designed to funnel users to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of embedded links, including one explicitly identified as a malicious redirector, supports this assessment. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

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=lindsay+adler%2527+s+lighting+reference+guide In PDF document text
    • http://zelon.missanoble.com/uploads/1/3/1/4/131406686/7a3a97350c50ef.pdfIn PDF document text
    • http://files.mhorakphotography.com/uploads/1/3/0/9/130969472/ragakupe_gepudivunageve.pdfIn PDF document text
    • http://jovojugod.michaelleewrites.com/uploads/1/3/0/8/130873851/pojofo_gagatazovetu_koluwo.pdfIn PDF document text
    • http://bupadof.softcinch.com/uploads/1/3/1/3/131380504/dd7776096a0e34b.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/1/0428/9835/8432/files/gofifarigomikidapowokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/70549029639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/gesomeditom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9763/6512/files/pivurulijofanewirune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2811/7661/files/kulakifuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/55333198299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/xajomopuxebojixanuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/durerapinosofiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7302/8775/files/dutorojodigukibufo.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_off000078b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B9 5360 bytes
SHA-256: a3b5cd2e7c9b5f2601c625f80254768aa55e8f3c3b065c7c6984c0cdb0013307
font_01_sfnt_off00008af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF4 10612 bytes
SHA-256: cbce100d464ef1742f3a9f895ec690aeb7bdaa72a70883ae836f72e0aeed4149

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