Malicious PDF — malware analysis report

Static analysis result for SHA-256 01fa136e9fc7e7aa…

MALICIOUS

PDF

77.2 KB Created: 2020-08-09 13:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9868fa8e595c58e09bbf287150bf0ea5 SHA-1: 6baa65bea8df7865f6fe8511e0ff1ac9fdb10946 SHA-256: 01fa136e9fc7e7aa27509e53ba7019928adf7b6ed86019c7f4c0856f05c2022b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a malicious domain, identified by heuristics as a link farm and redirector for phishing. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to direct users to a malicious site, likely for credential harvesting or malware delivery.

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=livro+after+vol+4+pdf In PDF document text
    • http://wanupisa.bacmedicaltourism.com/uploads/1/3/1/3/131379578/df47635481.pdfIn PDF document text
    • http://files.staywhole.net/uploads/1/3/0/8/130813710/7115585.pdfIn PDF document text
    • http://files.melanieveazey.com/uploads/1/3/0/7/130776611/927560.pdfIn PDF document text
    • http://files.finalfinishdetailing.com/uploads/1/3/2/7/132710655/levin_linebedanelu_vidaki_vukadidi.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/1/0434/9073/8328/files/11132388395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5823/1461/files/23809374042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/76836841526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8348/0736/files/sevibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/55314362783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2594/8072/files/viretitorijewami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9853/8151/files/65561574375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/83541332677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/gabumilizupi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE35 4948 bytes
SHA-256: efd1e25e98ba2fa87e0dcfc37931b9e384bf6f0a8bfe259e3026489b6c6d245a
font_01_sfnt_off0000df2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2E 16152 bytes
SHA-256: fe805bd1ee350a31e52cc698652f58870eea954f33e9e706652140c1a7ffbbe3
font_02_sfnt_off00011274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11274 16152 bytes
SHA-256: d2110df3fb4163718797ee32824ff633c1a9197127e395aa2ffce0abc54d6cad

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