Malicious PDF — malware analysis report

Static analysis result for SHA-256 d164156044d5798a…

MALICIOUS

PDF

42.0 KB Created: 2020-08-11 07:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4cad0dce1abde10b674dbdba8af0288 SHA-1: 895252b71e0552b5fd552d9254088f605d0793f8 SHA-256: d164156044d5798a5da92aa2bfd15aaa4120200fadb15cb64a031c6eec60f2a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL and other PDF-related strings, suggesting a lure to download further malicious content. The presence of multiple PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content.

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=aliran+marxisme+pdf In PDF document text
    • http://tapukexi.decadesboutique.com/uploads/1/3/2/6/132680813/koxizonovizewefu.pdfIn PDF document text
    • http://files.friedmanfrost.com/uploads/1/3/0/7/130739806/3ed6e28a4.pdfIn PDF document text
    • http://files.therecoveryfestival.co.uk/uploads/1/3/1/6/131637919/gaxedobikugu.pdfIn PDF document text
    • http://files.themobilityfactory.eu/uploads/1/3/1/4/131437676/rabubixi_lamazi.pdfIn PDF document text
    • http://files.westernshirtsnz.com/uploads/1/3/2/8/132814306/6310191.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/1/0433/4603/4846/files/2012_vw_jetta_tdi_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9784/7976/files/pdf_file_convert_to_jpeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2075/0745/files/austin_kleon_roba_como_un_artista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/les_autres_et_moi_isabelle_filliozat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7010/3452/files/metawiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/fafowivavapoxexerobise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9101/8396/files/kefiruda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/angularjs_http._get_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7671/0563/files/elite_4_fire_red.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/skip_everfi_videos.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_off000067ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BA 5244 bytes
SHA-256: 856d2fb013d93761b4c33e759b8f95ab282a6c8c9b4f05060e6be6cbe6086e36
font_01_sfnt_off0000796c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 9920 bytes
SHA-256: 2d3f16b128a454bc34196f09eea62be74433ddebe6f7f9b3967f1452fe0312df

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