Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0fc27365c9cc9a…

MALICIOUS

PDF

99.0 KB Created: 2020-08-12 13:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a83a5a52940d30d4ab2767354e90956a SHA-1: 174826a069e891f662a2bc530f911729c774a1fa SHA-256: 0e0fc27365c9cc9a476fff2f6c76ec1e49dd6ae732f1644e52f1d36cb82bcc87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that this document is part of a link farm designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of the URL https://ttraff.cc/wb?keyword=cultura%20incaica%20pdf strongly suggests a malicious redirection attempt.

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/wb?keyword=cultura%20incaica%20pdf In PDF document text
    • http://sijisegab.springhillelectric.com/uploads/1/3/2/7/132740580/3837b27cf8c7.pdfIn PDF document text
    • http://files.tacdlo.org/uploads/1/3/0/7/130775429/8690191.pdfIn PDF document text
    • http://files.morrowartscenter.com/uploads/1/3/2/3/132302759/3525156.pdfIn PDF document text
    • http://files.greenbuffaloestates.com/uploads/1/3/1/3/131383456/f65631.pdfIn PDF document text
    • http://files.jomehndi.com/uploads/1/3/1/6/131606465/365c31d885.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/1/0432/7964/6878/files/basic_algebra_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/28848190906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/31060692973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/gleichungen_aufgaben_mit_lsungen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/9465166617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5919/1712/files/98441845837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/16167894216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/40230674343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5765/files/85517080999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/tagokezofiridupofetud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/ludepevas.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14879 4876 bytes
SHA-256: 3cda7b8c1c5af830dd1a5520a94cee7f78adbeba082322fa177f477f28249d97
font_01_sfnt_off0001591c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1591C 11260 bytes
SHA-256: 1c52e51431134572654f9af21433bead8b63a412950a67e4fb391bac1ae99ffa