Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1fe46d05b22875d…

MALICIOUS

PDF

42.6 KB Created: 2020-09-15 02:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01fa91b750912576f8ff71bea7e8bbf0 SHA-1: 3b40caf549c0c6042256f26afacd9ffef20f2210 SHA-256: a1fe46d05b22875da71c37f1b141f149686b7b024bb87cc1c68c434310dcd069
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to SEO poison, directing users to a malicious redirector. The primary link, 'https://ttraff.cc/wb?keyword=principles%20of%20the%20constitution%20worksheet%20pdf', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify URLs, likely to appear legitimate. The ML classifier strongly indicates maliciousness.

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=principles%20of%20the%20constitution%20worksheet%20pdf In PDF document text
    • http://files.webuysouthernmdhomes.com/uploads/1/3/0/7/130740483/milezul.pdfIn PDF document text
    • http://sajuf.glassfarmgreens.com/uploads/1/3/1/4/131454046/wekes.pdfIn PDF document text
    • http://files.paddlesportszanzibar.com/uploads/1/3/1/3/131384127/f8b773b.pdfIn PDF document text
    • http://files.russianguideservice.com/uploads/1/3/2/3/132303170/xikazatuwexutom.pdfIn PDF document text
    • http://zinamo.westvanforyouth.org/uploads/1/3/0/7/130776246/puwajufupaka-nomamarogew.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/1/0434/1386/4602/files/suxubefugixukepusajexet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2116/3941/files/32604912893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/xipewiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1067/7141/files/60637459772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/vuzopozubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42228357160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9617/7816/files/audi_q7_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7554/2950/files/backtrack_5_r3_iso_64.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4111/9647/files/dushman_1971_full_hd_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8336/6551/files/budiluxefofotesofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8918/files/antonyms_online_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/63333693603.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_off0000676e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676E 5192 bytes
SHA-256: 112049c59a0e54ae5ad3da246db40acddfca44bd8ace07ba4fb3e7ee7a48aae2
font_01_sfnt_off00007926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7926 10544 bytes
SHA-256: daf7629fe048e429b988694172cc30789e8277109c392954578260f20ad4eaf5

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