Malicious PDF — malware analysis report

Static analysis result for SHA-256 0220af96432a772a…

MALICIOUS

PDF

70.8 KB Created: 2021-02-11 16:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9b34abed17222775ac8b9e8c54ec7d5d SHA-1: 2a535c2a9aeb06d3e5d3071e86fcbf74e093f0f9 SHA-256: 0220af96432a772a4718d3e9bbec8af01d72e67b6cd98fa8a40a1484b35781a2
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/wb?keyword=blackmail%20movie%20song%20%20odia In PDF document text
    • http://itasda.online/235938385758rbng.pdfIn PDF document text
    • https://zifimebitumane.weebly.com/uploads/1/3/4/2/134236425/bosifuxixugere.pdfIn PDF document text
    • http://prostochillforum.fun/lulurubaouu0c.pdfIn PDF document text
    • http://airbin.top/production_drawing_textbook_free_dowfm00f.pdfIn PDF document text
    • http://zoosalon.org/660313160901izb6.pdfIn PDF document text
    • https://segagewemavovus.weebly.com/uploads/1/3/0/8/130874565/9e296.pdfIn PDF document text
    • https://luzatewuxajexi.weebly.com/uploads/1/3/4/2/134265782/daa7c3815c.pdfIn PDF document text
    • http://chebsvet.ru/44316721106hsy9k.pdfIn PDF document text
    • http://powerhdniy.space/kiwatuzikekudemefudimidekv020s.pdfIn PDF document text
    • http://select-get.top/flower_garden_layout_planner_freeovkmk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wulitebajanuba.rf.gd/furaruvinexuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/amazon_online_test_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/zezudexarewu.pdfIn PDF document text
    • http://jesudojisa.rf.gd/68119470546.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/51590122403.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_off0000d770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD770 5336 bytes
SHA-256: a3b526d4ed2367d2a2e13dd61608266a75383b248362220cc78105577a5fb3f4
font_01_sfnt_off0000e996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE996 10976 bytes
SHA-256: 39fbd5df182dc0b5d46ac6b45d2a7dcb5efeee5088f800ef458211fe4c875055