Malicious PDF — malware analysis report

Static analysis result for SHA-256 41644b18d816d3ad…

MALICIOUS

PDF

41.2 KB Created: 2020-07-28 19:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 174c803572ada3a65671b181e53254f6 SHA-1: 6cddc13f2d9313fd635fe5a768d330ae9f7c5171 SHA-256: 41644b18d816d3ad8f0383e8420ca967ca62fdc4bb875a3607be5cec6cc25a5f
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to a 'Cardell touch manual'. The presence of numerous external links suggests a link farm or redirection strategy to distribute 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=cardell+touch+manual In PDF document text
    • http://files.similandiveguide.com/uploads/1/3/1/8/131871558/b419a.pdfIn PDF document text
    • http://files.mrspeed.co.uk/uploads/1/3/2/6/132681865/guxatibutukopuxiw.pdfIn PDF document text
    • http://files.heavenonearthestates.com/uploads/1/3/1/4/131405948/bab461cc0f.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/1/0435/3631/8616/files/kuxezobiwedikudinabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/xowupunalabibirefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/35650309107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/musawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3287/0044/files/35122448464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9283/files/mepinudinutelimapenoruli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7673/8462/files/wigewojalisalejizojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/44072830020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/65141402132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/99098523877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4802/6780/files/77517466815.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_off00006249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6249 4856 bytes
SHA-256: b9beeef52bfbe5b65cf534c94d3a1b951805348f9b56559497cdbe5303726016
font_01_sfnt_off000072a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A0 11024 bytes
SHA-256: 5048736763b5cda048e66b828565900be6a411b2637dbd541c43f83326aef68c

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