Malicious PDF — malware analysis report

Static analysis result for SHA-256 17114b8fae35e597…

MALICIOUS

PDF

34.7 KB Created: 2020-08-07 12:56:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c94ff1f140560edf04f5bcebf31d8348 SHA-1: 07e914e807ac1259c2d54d46a0af87697b0324b7 SHA-256: 17114b8fae35e597cee9abd789dbf85bcc9549c2416428e92c4d0a019bb5af36
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body and heuristics suggest a lure for free downloads, likely leading to phishing or malware. The ML classifier strongly supports the malicious verdict.

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=basic+english+grammar+test+bank+pdf In PDF document text
    • http://files.denverchinesesource.com/uploads/1/3/2/8/132814544/dovokukumowepiwaz.pdfIn PDF document text
    • http://files.immlawcounsel.com/uploads/1/3/1/0/131069978/gipekuti.pdfIn PDF document text
    • http://files.thefastshopp.com/uploads/1/3/1/8/131856706/8751516.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/1/0433/2060/6885/files/zasisulotatujafijefekumeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/refomowebuganisukejipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/nazuxakokuwokafisugazira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/riverdale_pilot_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0493/5835/files/susotejawif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/react_native_bold_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/juvefeninubufuwurodofoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4547/files/luradajabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/53564306382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/zifododadunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7338/6136/files/tufinubibipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5584/0409/files/alabaster_girl.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_off00004816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4816 5820 bytes
SHA-256: 11e7cb617ebb7fa6c40fc5b1390a98e9e11f99ee8b63c961f0fa98c4870f212a
font_01_sfnt_off00005bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 10028 bytes
SHA-256: 7fe1400186adb0048c4a948f153fc7a7b071057d57e992d728972a0710bf849e

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