Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a15b1e941177da…

MALICIOUS

PDF

38.1 KB Created: 2020-08-05 04:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4977b7e0e55f6648adb0dfdd68dc8a8e SHA-1: 789a801aa7ad81ef18a1fb52fcf9d5d79dd2d145 SHA-256: e1a15b1e941177da09686b82e31458504a857c074f33df90e4fe4216ecdf60bd
194 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as legitimate SEO material, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the initial URL leads to a known malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into downloading further content, likely malicious.

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=the+art+of+seo+mastering+search+engine+optimization+pdf+download In PDF document text
    • http://files.snowformatics.com/uploads/1/3/0/7/130738974/mumefezemagal_sejukusa_ruvojiw_rerebul.pdfIn PDF document text
    • http://files.mwdcoach.com/uploads/1/3/1/4/131452958/4becd4090e9.pdfIn PDF document text
    • http://files.empoweredlifestyles.net/uploads/1/3/1/6/131606901/413a0d.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/1/0436/4202/8182/files/53197626465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/61117799331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/rigibozebuladalofinerusas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/gafumizenanijelujeved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/47861670208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/serratus_anterior_stretch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/43489186809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/jodemibakekavalel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/49885635560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/tapowimisu.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_off0000560a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560A 5660 bytes
SHA-256: d7ebc850ecb5ee4f2bb59b7c23bc60a44de747e2f8289eb485434eeefad94255
font_01_sfnt_off00006940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6940 9996 bytes
SHA-256: 084a54c7c68ec7bd6c41797e605b01cee64b78c170d27d9ffa5c3d08206c55f8

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