Malicious PDF — malware analysis report

Static analysis result for SHA-256 116d0bfa2405967b…

MALICIOUS

PDF

73.6 KB Created: 2020-10-03 14:12:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72460449add02d0c219dcc8a6a016cbe SHA-1: 9bfe9b1dffd8c6b45fd32b5e167ae1fd71abbfd5 SHA-256: 116d0bfa2405967bb7d444489f486fabd42a7eb0f980b3427829798836408e17
194 Risk Score

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://ggtraff.ru/strik?keyword=tecnologia+educativa+concepto+pdf In PDF document text
    • http://files.littlerippahaven.org/uploads/1/3/0/8/130874296/7922cabb.pdfIn PDF document text
    • http://files.enelectuas.com/uploads/1/3/1/1/131164488/tuporugosusukeg.pdfIn PDF document text
    • http://files.teamolin.com/uploads/1/3/1/4/131437987/1309742.pdfIn PDF document text
    • https://site-1039892.mozfiles.com/files/1039892/60499576274.pdfIn PDF document text
    • https://site-1038675.mozfiles.com/files/1038675/kumopowifoviwafe.pdfIn PDF document text
    • https://site-1037850.mozfiles.com/files/1037850/32162493709.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/1/0436/8062/8889/files/77004423218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7213/8647/files/26459228306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1147/6126/files/proof_of_income_sample_letter_for_self_employed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/1874/9605/files/febazotofoxodudexexurel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/8163/3444/files/vudiridijiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/88464941109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9816/5414/files/2774804784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8246/files/76309426728.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A9 5060 bytes
SHA-256: 8db5305105fafa2456028ffcb574741485fb98e073d44afff048817da6f629fd
font_01_sfnt_off0000f201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF201 11588 bytes
SHA-256: 963ba0a1f1afd6be175aa8d8e1aa14ec52921873687a3887f6ebd79f26d4bcad