Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c678a8c1f8edca…

MALICIOUS

PDF

42.2 KB Created: 2020-08-21 09:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 334219ca3547d503e7f756a91e0fc1f4 SHA-1: cdc9d0d8b6741bd82f7073ab53ed121c66849b76 SHA-256: e2c678a8c1f8edca7b5648db73176e11674905e8ef897d3460f5d605688ad6fd
234 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm designed to redirect users to malicious sites, specifically leveraging a 'google chrome app windows 7' lure. The document body, though heavily obfuscated, contains references to this lure and numerous PDF links, indicating a social engineering attempt to trick users into downloading potentially malicious content or extensions. The primary malicious URL identified is ttraff.com, which is flagged as a redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=google+chrome+app++windows+7 In PDF document text
    • http://files.css-el.com/uploads/1/3/2/7/132710763/3529412.pdfIn PDF document text
    • http://files.mariettadeckandfence.com/uploads/1/3/0/8/130814611/9422845.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/1/0431/5080/3099/files/kovijalikilozobureda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32878299647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/16202223545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0905/6666/files/gibinosuwinutezosefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5709/4559/files/id_rsa._pub_permissions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8020/3944/files/9644571168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/zovavavewir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/94560173071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/cbse_class_9_english_literature_reader_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2961/0141/files/bacterial_culture_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2342/7752/files/m44_bus_timetable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3404/9703/files/sakaruxubulabiju.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_off00006577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6577 5692 bytes
SHA-256: 206e215dd9157bfbde0450150586452c68ce3355432b777fb8b72c9898dadcdf
font_01_sfnt_off000078c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78C2 10376 bytes
SHA-256: 521a304b02178db44a1abd08cc19c3ad1eb8550f0c098ba22056630742e86874

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