Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c97d2e39377d66…

MALICIOUS

PDF

33.6 KB Created: 2020-08-22 05:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d3c39927b603a7570b8348e59367d8b SHA-1: 1eb0e63bf18f183b8ea2d546a81a019f94933258 SHA-256: a0c97d2e39377d66c6a20d4ed17ff6926beeb092a1454e272c00e3df36a6defb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external PDF files, a technique often used for SEO poisoning or to obscure malicious redirects. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=greensboro+nc+police+accident+reports'. The document body, though heavily obfuscated, contains text related to 'Greensboro nc police accident reports', suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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=greensboro+nc+police+accident+reports In PDF document text
    • http://files.dreamsmasherswimbaits.com/uploads/1/3/1/3/131380627/565799.pdfIn PDF document text
    • http://files.shopbadsister.com/uploads/1/3/0/7/130739239/2a374.pdfIn PDF document text
    • http://wekiw.onlineenglishacademyofseattle.com/uploads/1/3/0/8/130813668/tawapofozobar.pdfIn PDF document text
    • http://zinifaru.omalleyfoundation.com/uploads/1/3/2/8/132814343/pekiza.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/1/0437/1690/3080/files/25165005834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/88413334102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5812/7270/files/anesthesia_secrets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/21667381981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/91885587288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tefabojukiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7005/3782/files/baaghi_2016_full_movie_bluray.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/dugajopavowilobomogobom.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_off0000462a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x462A 5240 bytes
SHA-256: f20ba866b0a7404c65f9add0e3fd80b991a3afcad02360c030959ca449417c09
font_01_sfnt_off000057f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F2 9952 bytes
SHA-256: cc5d1af6ae0e2d89096b566a4d4491360024a88d1bb0b9e23f3ca47a52a1e5b0

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