Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c50dab44be8cc8…

MALICIOUS

PDF

49.3 KB Created: 2020-08-03 06:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cd62f456ef2821f7937f23e6ba63a28 SHA-1: 2a910a4f576435ffe6931ee554fed709fdfa2671 SHA-256: 14c50dab44be8cc8a96d7b227ca6098b2345b22ff6e53bd115a8e298264f2680
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure for 'nwmls forms pdf'. The presence of a link farm and a redirector suggests an attempt to distribute malicious content or phish for information.

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=nwmls+forms+pdf In PDF document text
    • http://files.louisewknight.com/uploads/1/3/1/3/131384663/132813.pdfIn PDF document text
    • http://files.jcudiveclub.com/uploads/1/3/1/1/131163613/bofivoza-vapelafusazo.pdfIn PDF document text
    • http://files.combslong.com/uploads/1/3/0/7/130738548/7954909.pdfIn PDF document text
    • http://files.koffienator.nl/uploads/1/3/1/3/131398174/2486915.pdfIn PDF document text
    • http://files.palumbofamilydentistry.com/uploads/1/3/2/6/132680986/32ccd4.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/1/0427/6954/7431/files/mulotafopadozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3526/2104/files/92658221772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5435/7915/files/google_sheets_spell_check.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2397/2005/files/31706688879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/23540218486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5939/4213/files/390833347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0732/7904/files/pearson_algebra_1_common_core.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/79697978908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/24956212904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/zamasalufapovobajipatuzox.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_off00008390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8390 5040 bytes
SHA-256: 744064d12bb7cd41e84e29af6f81b693502e1c02555fd74c2de19648633d3ba7
font_01_sfnt_off000094b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94B8 10456 bytes
SHA-256: 742beb38823187d87a36eac0d0de2fdb4aa7912fe021d04cf58400a5d31abe0f

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