Malicious PDF — malware analysis report

Static analysis result for SHA-256 57bb4272f3e36668…

MALICIOUS

PDF

37.6 KB Created: 2020-08-22 23:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a1200f1da4aae61e2c3861466d138c5 SHA-1: 7ca1802eeffe071abe5a82b655a99792a6c4fbaa SHA-256: 57bb4272f3e36668ea8cb14bc829dd401074df63f576bc96c6e1919a95d8bc0b
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a reference to the same URL and a keyword related to guided meditation, suggesting a lure. The PDF also contains a link farm heuristic, indicating it's part of a larger SEO-based distribution effort. The primary attack pattern involves tricking the user into clicking a malicious link.

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=guided+meditation+jason+stephenson+abundance In PDF document text
    • http://files.sunsolutionskauai.com/uploads/1/3/1/4/131406222/4037898.pdfIn PDF document text
    • http://files.marktapparel.com/uploads/1/3/2/6/132682655/wadotajo_zivefezevipapaz_gefatovitemuru.pdfIn PDF document text
    • http://files.farmlakeoutpost.com/uploads/1/3/0/9/130968984/zusumenilen-jinoluxom-dufisasozusogo-jupujanosogom.pdfIn PDF document text
    • http://ziverafa.fihankra.org/uploads/1/3/1/4/131453249/4764275.pdfIn PDF document text
    • http://sumitebo.miraefoundation.org/uploads/1/3/1/0/131070317/1644367.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/1/0431/6617/1293/files/78335637175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9254/1589/files/podedesibotugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/pojajivolomajovarin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/91541495150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/technique_assemblage_bois.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4686/0960/files/windows_media_player_visualizations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5329/2440/files/t_posts_bulk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/32933612100.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_off00005544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5544 5432 bytes
SHA-256: 7f395922aff364cc11b7e003c094fdd25c71e9e46c95f7dcd614e0452032d082
font_01_sfnt_off0000678f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x678F 9892 bytes
SHA-256: 11516307fe16941d326af3141b0dc00f6675e8836a8ecb3a4416d598ffc89554

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