Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bd4a148739b7687…

MALICIOUS

PDF

58.9 KB Created: 2020-07-31 12:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 298dc9881b7f1414e63a8b0c4626d96f SHA-1: e16a3ab0787361eb8d92e681ef167142a597bce6 SHA-256: 1bd4a148739b7687b6c20a60a925d72017b02dde0238733b337f5f0ef78977c9
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is a known malicious infrastructure. Additionally, it features a link farm hosted on Shopify, likely intended to artificially inflate search engine rankings or distribute malicious content. The ML classifier strongly indicates malicious intent.

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=atahualpa+yupanqui+pdf+guitar In PDF document text
    • http://files.vermontnaturalhomes.com/uploads/1/3/1/4/131454306/339390.pdfIn PDF document text
    • http://files.montalvofoodwine.com/uploads/1/3/1/4/131453735/1969771.pdfIn PDF document text
    • http://files.blackberrykeep.com/uploads/1/3/1/4/131453493/2187471.pdfIn PDF document text
    • http://files.treeoflifeinternationalchurches.org/uploads/1/3/2/8/132814168/101307.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/1/0438/2271/0941/files/dexarubazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1523/3959/files/jaropenevepezusalumapufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2439/0056/files/30000453375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/lilibaketukukanolin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/wasifironejobevuxuvakefem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/25453938187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5109/6984/files/2091060545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/59284839140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9652/files/pofes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/meleliw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/pujiwidofiwubababazuvem.pdfIn PDF document text
    • https://commons.wikimedia.org/w/index.php?curid-40454694-In 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 5

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_off00009be3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BE3 4996 bytes
SHA-256: 40ff6bb4007b2a003ebd946edbd876330b1524b4492bc102aab930ab1e8380ae
font_01_sfnt_off0000acc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACC0 16492 bytes
SHA-256: eeb3cefab7710e66ccfb3c22e94d78c096420cf48c35c2b41119baa8448829e0

Open this report in the interactive analyzer, or submit your own file for analysis.