Malicious PDF — malware analysis report

Static analysis result for SHA-256 16614dee5789be2b…

MALICIOUS

PDF

49.2 KB Created: 2020-08-05 04:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 530c51be206ce904ba681af8305295b8 SHA-1: 6a255c07e45faa4032e37218ff95e9b98140d29b SHA-256: 16614dee5789be2b045c6998dc88cd2fa97f2486c4bf8a81268a542217a0a09f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary function is to redirect users to potentially harmful websites, likely for phishing 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.ru/pify?keyword=blumenfeld+clinical+neuroanatomy+pdf In PDF document text
    • http://files.renaissancefarmburlington.com/uploads/1/3/2/7/132741556/5349442.pdfIn PDF document text
    • http://files.audreylewisinteriors.com/uploads/1/3/1/3/131380052/jewupativikemonorin.pdfIn PDF document text
    • http://files.whitehallnaz.org/uploads/1/3/1/3/131384121/vokugu.pdfIn PDF document text
    • http://files.good-vibes.com.au/uploads/1/3/1/6/131636825/f97219.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/1/0435/9228/6363/files/gogidinebekofinoseratodip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7086/6076/files/91336104176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1538/7811/files/26094324065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9520/files/61212972262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/14635409435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/unity_fire_prefab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8538/0246/files/32163887362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/25591290060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0812/2270/files/gukisixasaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0980/8280/files/jeron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/89139723391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/zalozole.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 6

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_off00008341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8341 5272 bytes
SHA-256: 05e9d109a01f7814518018ca900fc5d33833f273dc87e12297719a292a3fe627
font_01_sfnt_off00009526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9526 10076 bytes
SHA-256: d085ce0c4db498ef62e8f1c9bf54c701081b1324792da0bbc3b8b0581ddb9f1f

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