Malicious PDF — malware analysis report

Static analysis result for SHA-256 a06e61d59761f2c6…

MALICIOUS

PDF

59.3 KB Created: 2020-10-09 10:05:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7081c18764f49fb0c132427e493d4af9 SHA-1: e65be79c23b3c14ff2e67630a7d5db313cba1e95 SHA-256: a06e61d59761f2c6664c505f721fcef28f7c2577d2546fb770bc239010ee51a5
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=product+development+and+formulation+pdf In PDF document text
    • https://site-1041768.mozfiles.com/files/1041768/fekagi.pdfIn PDF document text
    • https://site-1040561.mozfiles.com/files/1040561/59657803347.pdfIn PDF document text
    • https://site-1040683.mozfiles.com/files/1040683/73797991600.pdfIn PDF document text
    • http://files.dancarleemarket.com/uploads/1/3/1/4/131407181/6487700.pdfIn PDF document text
    • http://files.podcastsforpeace.org/uploads/1/3/0/7/130739143/3223582.pdfIn PDF document text
    • http://xafuzofu.phhlca.org/uploads/1/3/2/3/132302966/kofojur_kelupugozutu.pdfIn PDF document text
    • http://files.afalive.com/uploads/1/3/1/3/131384429/1635039.pdfIn PDF document text
    • https://site-1043404.mozfiles.com/files/1043404/dukadinetusilorugovipu.pdfIn PDF document text
    • https://site-1038856.mozfiles.com/files/1038856/38733870140.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/1/0495/4626/4743/files/mongodb_create_collection_with_index.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6276/3160/files/the_most_dangerous_game_crossword_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3508/5978/files/kawasaki_vulcan_500_battery.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_off0000ab5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB5D 5184 bytes
SHA-256: d3c861041cb7e784d989eef80a10733add396ce30c3fc4443323fbf478cfaf3e
font_01_sfnt_off0000bcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCF6 10276 bytes
SHA-256: cab4db40502d71643396fce3b183d62bddc313f61447da3b3beb4b92a17e6879