Malicious PDF — malware analysis report

Static analysis result for SHA-256 101ae989017ffd81…

MALICIOUS

PDF

44.7 KB Created: 2020-08-07 19:03:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c46de7e10a972598516d046a2f68903 SHA-1: 1e3d2f2019e5001eb8874d00b43fa7be8a987042 SHA-256: 101ae989017ffd81d3453d3be8a0144a36ff33960199a5081dd385e85fa3b6d4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to a malicious URL. The heuristic firings indicate the PDF is a redirector and part of a link farm, likely intended to phish users or lead them to malicious content. The ML classifier strongly supports the malicious nature of this file.

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=teoria+de+abraham+maslow+jerarquia+de+las+necesidades+pdf In PDF document text
    • http://mojawa.emirhrnjic.com/uploads/1/3/1/0/131070109/jivokazupufijoveleni.pdfIn PDF document text
    • http://files.shopbrickroad.com/uploads/1/3/1/4/131437625/9065848.pdfIn PDF document text
    • http://files.goldengloryauthentics.com/uploads/1/3/0/7/130739204/ebc6dea.pdfIn PDF document text
    • http://panulon.claussenequipment.com/uploads/1/3/0/8/130874038/wezemekufuzoxik.pdfIn PDF document text
    • http://files.baldfantaseasphynx.com/uploads/1/3/1/3/131379406/nirewaf.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/1/0433/9639/9269/files/becker_cpa_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9363/files/57593783495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4457/7178/files/headway_beginner_test_booklet_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5978/files/96094072483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8590/5576/files/airway_breathing_circulation_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/44440646220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7386/2808/files/85795632036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/wogiwabemojukiruruzojuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/vuwiwojimisabuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0970/3062/files/5917379995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/dezofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/puderibajalilinipukibeve.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_off00006ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE6 5780 bytes
SHA-256: 93d07bd1e56d9d6c25c21f04c57fc42a30f919d91b605b0c00c13a204aaac9e8
font_01_sfnt_off00008078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8078 10724 bytes
SHA-256: 91e0c39dbbe14f87a7e1d147c5038bab82ba0f9296f449e411ae64a505009819

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