Malicious PDF — malware analysis report

Static analysis result for SHA-256 41e5508a42f40e5f…

MALICIOUS

PDF

41.0 KB Created: 2020-08-11 21:41:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3440b2529eb69d4c3abdaec982f6df86 SHA-1: 0da187a5423f4e9985046c30fe1943a10bfd018f SHA-256: 41e5508a42f40e5fffb735a120a89b8daf67afcc6af83a76939a68b2e58dce9c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and URLs as found in the heuristics. The primary attack vector appears to be a link farm designed to redirect users to malicious content, likely for phishing or malware distribution.

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/wb?keyword=guru%20mann%20shredded%20program%20pdf In PDF document text
    • http://files.leveluphealthandwellness.com/uploads/1/3/1/8/131856713/625bf1d5d53d1.pdfIn PDF document text
    • http://files.laurenhendersonmusic.com/uploads/1/3/0/7/130739783/79b4a.pdfIn PDF document text
    • http://nusesi.decoratorinwiltshire.co.uk/uploads/1/3/1/4/131453494/fitege.pdfIn PDF document text
    • http://files.morschmachine.com/uploads/1/3/2/7/132740204/3d598efcc9c9.pdfIn PDF document text
    • http://files.malowiaguesthouse.com/uploads/1/3/1/4/131437515/1769872.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/1/0435/3074/8055/files/kibavizurunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/liradazifetojizufat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9476/9821/files/english_short_stories_grade_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/47478922653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/bewiditop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexigubozorabavajodumixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/raroxeridufukelakupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6369/5770/files/batman_who_laughs_comic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7844/9307/files/minecraft_usernames_and_passwords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/panij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/gubagi.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 4

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_off00005f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1A 5452 bytes
SHA-256: 5bee22b72ef398e872df685b54acf95512465c0561f7e6fe811ad748567e5388
font_01_sfnt_off00007175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7175 10596 bytes
SHA-256: 29b647a51ea6e9294508470c5ec658f857a480478ec0572a4d6582dbd05be5d9

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