Malicious PDF — malware analysis report

Static analysis result for SHA-256 41c24f8f76a6e3d5…

MALICIOUS

PDF

41.1 KB Created: 2020-08-12 22:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42779f6c3e656180a812d9d8c54a227b SHA-1: 4afff06ef3137b481f5370b50f602231ca74f2c7 SHA-256: 41c24f8f76a6e3d547594482a110068c3a00c8108ccfc5b181a5feb636c867ed
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to an 'inauguration worksheet' and the malicious URL. The presence of a link farm heuristic suggests an attempt to manipulate search engine results or distribute malicious content broadly. The primary malicious URL is https://ttraff.com/wb?keyword=turning%20points%20inauguration%20of%20washington%20worksheet.

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/wb?keyword=turning%20points%20inauguration%20of%20washington%20worksheet In PDF document text
    • http://femapavav.maxnewmarkswildlife.com/uploads/1/3/0/7/130776716/fagis-guwudododu.pdfIn PDF document text
    • http://girujuze.gardenguildlakechapala.com/uploads/1/3/1/8/131856158/buxego-babaligijev.pdfIn PDF document text
    • http://files.my-living-benefits.com/uploads/1/3/1/3/131380008/3a6f73d179d.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/1/0433/5511/1589/files/wufokutifobokuruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/application_as_a_teacher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/pujez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9834/9471/files/ridedinuwix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1878/7743/files/dazivas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/there_was_a_problem_starting_logilda._dll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/breakthrough_advertising.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/murder_on_the_orient_express.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/50049983325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/57711222629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/attestation_employeur_action_logement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/longest_palindromic_substring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/guwulujawonimavakebizop.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 3

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_off00006367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 5236 bytes
SHA-256: 74c86166f05cee2ea7cf35596a81742d623e1561a1a1c445f0bd599e785c1144
font_01_sfnt_off00007542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7542 9904 bytes
SHA-256: 14fef30db847e5727d83e7049e9490006708ca111d8715af2313a02fdc7f7c28

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