Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e35133a5d1e383…

MALICIOUS

PDF

35.9 KB Created: 2020-08-02 07:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f89cf1c0058bac3f74f92f5b68ee653c SHA-1: c9555f5b242f8ea81fc4cb0a94e7987f059bcebe SHA-256: e5e35133a5d1e383869b3c56a0d61a050e47a2d6ffe7ce51fb7b061c58df8eca
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.cc, disguised as piano sheet music. This redirector likely leads to a further stage of the attack. The PDF also hosts a large number of other PDF files, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The ML classifier strongly indicated maliciousness.

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.cc/pify?keyword=peanuts+theme+song+piano+sheet+music+pdf In PDF document text
    • http://files.mtviewbaptistchurchal.org/uploads/1/3/2/7/132740965/poxefamubel-dopirowoj.pdfIn PDF document text
    • http://files.unfinishededucation.com/uploads/1/3/2/6/132682676/7dbb3.pdfIn PDF document text
    • http://files.paulasherbals.com/uploads/1/3/2/6/132682790/6753280.pdfIn PDF document text
    • http://files.nltbiblecollege.org/uploads/1/3/1/4/131452735/vexobetat_fejuviv.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/1/0435/7432/9507/files/52803275630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/4435178844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/22827449105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/vutuderujodupawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7039/8372/files/89706740810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/18243696539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/60685209096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7810/6779/files/race2_songs_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/tesujoxikuxavaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/59812221485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3543/4901/files/damamiminozixezojomizolan.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_off00004df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF4 5440 bytes
SHA-256: 0ec278efdf417dd0bfa022313c285f853f863d53f586b1d90301a9b971d2a4a6
font_01_sfnt_off00006058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6058 10164 bytes
SHA-256: d7d4ac19aa8d6b8ae69eb9fe1f35df45e5feb8b2f2577b2d9e3377b5527f2f0f

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