Malicious PDF — malware analysis report

Static analysis result for SHA-256 b575e7c46c94e38a…

MALICIOUS

PDF

36.5 KB Created: 2020-08-18 18:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61c87cb64d787a3782e4bd2064581919 SHA-1: fca7b30ff1b49aad9ce9d707e7cca81a6e3cbf8b SHA-256: b575e7c46c94e38a5f6a6a21975196c25bd6773541ea4f7dad49a372b21f91cc
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the URL and appears to be a lure related to a 'Bailiwick crossword answer'. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDF files, many hosted on Shopify. This suggests a campaign focused on driving traffic through redirectors and potentially hosting further malicious content on seemingly benign platforms.

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=bailiwick+crossword+answer In PDF document text
    • http://ledolu.trofefashion.com/uploads/1/3/2/7/132740718/wozenizadu.pdfIn PDF document text
    • http://tekowo.empoweringdesign.net/uploads/1/3/1/4/131406082/33a9fab72d.pdfIn PDF document text
    • http://files.orderaugies.com/uploads/1/3/0/8/130814492/4012322.pdfIn PDF document text
    • http://files.thejadetemple.com/uploads/1/3/0/7/130775448/masev-kabozokaxopapov-xaxemedog.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/1/0429/5720/9753/files/dolepurunomufejuroxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7683/7785/files/sagitafudowelagab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/75583838369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/fafigogakuxejawefenazefij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/rizejisikekepekadir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8787/9580/files/16088614978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/79876890602.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 2

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_off000051c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51C9 5140 bytes
SHA-256: a5496ca12eea4d7aa6ab1fb66f7c70bb092b9556c601c6c3947b0d783539dfab
font_01_sfnt_off00006359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6359 10020 bytes
SHA-256: 77ce749365493bc9059007c79b8938b7d3ec7527b41244720933e0dc0c35e17d

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