Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a2eafdc17b03c00…

MALICIOUS

PDF

69.6 KB Created: 2021-02-25 22:21:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 597ba088a656a59fd3606c29aac73229 SHA-1: 71aa3ab5c8df55799047f4ed01dc9adce4d6003a SHA-256: 9a2eafdc17b03c001b1ab9ae8f6a693eff4a42b1dfc434a560cd605046060066
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=damage+health+poison+ix+ravage+health+protection+defile In PDF document text
    • http://zopokujejisolan.getenjoyment.net/37407092708.pdfIn PDF document text
    • https://cdn.sqhk.co/walumupo/dP0gdT5/93375419974.pdfIn PDF document text
    • https://cdn.sqhk.co/lekibefefu/he7uVMa/top_music_group_of_the_90s_billboard.pdfIn PDF document text
    • http://tifusavegapawuf.mygamesonline.org/florida_optometry_ce_requirements.pdfIn PDF document text
    • http://terugate.mypressonline.com/does_the_kitchenaid_mixer_have_a_food_processor_attachment.pdfIn PDF document text
    • https://pedumodab.weebly.com/uploads/1/3/1/6/131637036/sadenidigada.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/wixubabatoxijor.pdfIn PDF document text
    • https://zizizibewanexu.weebly.com/uploads/1/3/0/7/130776642/fepukakawakanoz-loxodevonorakub-ponogad.pdfIn PDF document text
    • https://gebiworopefibo.weebly.com/uploads/1/3/4/5/134583098/fumiwed-suwiluvuduvimi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://supuwevul.atwebpages.com/where_to_drop_off_clothing_near_me.pdfIn PDF document text
    • http://xilawon.epizy.com/complaint_handling_at_universities_best_practice_guidelines.pdfIn PDF document text
    • http://vefagukolile.epizy.com/bubble_blast_game_app.pdfIn PDF document text
    • http://dolizanawuw.epizy.com/cancelar_cuenta_netflix_android.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_off0000d488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD488 5696 bytes
SHA-256: 828885be468826bb5290839c2505df8c344deda01b3978bbf2ed6b65305e9bb4
font_01_sfnt_off0000e7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D5 9732 bytes
SHA-256: 2580e0e4ea394cb30c18afb7a9f55e13b10d86ea9697248fecea18cdfc754f1e