Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e07967fed3cb5bf…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 02:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36cc43e7022958ee68d8371e098d14cf SHA-1: 274d96f025db1b8cbea87d20a756ba437c47468a SHA-256: 4e07967fed3cb5bf6b2799555ad31cad13c41e4ec593c33cb0d39d52ee65ec2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link that redirects to a malicious domain, disguised as a document about analytical method validation. This is further supported by heuristics indicating the PDF is a malicious redirector and part of a link farm. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted from this sample.

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=analytical+method+validation+guideline In PDF document text
    • http://files.baltermusic.com/uploads/1/3/0/8/130874514/d57d6.pdfIn PDF document text
    • http://files.massmediamaker.com/uploads/1/3/0/9/130969312/972194b424.pdfIn PDF document text
    • http://files.theperksofbeingbookish.com/uploads/1/3/2/6/132681482/e73a6173.pdfIn PDF document text
    • http://files.inspiredbychoices.com/uploads/1/3/0/7/130775747/saredegufubaxuxigup.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/1/0433/5150/7112/files/nolefof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1285/files/93216907499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/19089885060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/shield_hero_light_novel_14.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8353/0394/files/creo_parametric_tutorial_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/pevulorisogumuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2593/files/95554614266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/vinutonaligijobakez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/fall_color_report_2019_maine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3481/1290/files/vakalujatomuluwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/autocad_2020_beginner_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7978/5891/files/konomokoto.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 7

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_off000062b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 5228 bytes
SHA-256: aa935ef32c3e669f0a507931979a8b1a88e78921b0df2b2b25996865f347cad4
font_01_sfnt_off00007458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7458 10348 bytes
SHA-256: 0eb27d243878ed31999207647c9afef46b67757326a457c2ed8f9b6091824492

Open this report in the interactive analyzer, or submit your own file for analysis.