Malicious PDF — malware analysis report

Static analysis result for SHA-256 707007e5a2c2ffe2…

MALICIOUS

PDF

69.6 KB Created: 2021-03-02 03:06:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c0b7ff4d5b0efcf69a6e7b2d2b830be5 SHA-1: e57df7f9def4329eea4ec5c7befbfc2a98abea2e SHA-256: 707007e5a2c2ffe2fe3776c8091c26ad073abe68ce7e6c55f085c9449548dff6
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/wix?keyword=wayne+trace+basketball+twitter In PDF document text
    • http://mitutepoka.medianewsonline.com/michigan_medicaid_id_number_lookup.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/hbn2ham/the_kitchen_family_style_episode.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/cqiczYh/3376890120.pdfIn PDF document text
    • https://zigepavozaw.weebly.com/uploads/1/3/4/3/134349437/masoregup_kazaliroterume.pdfIn PDF document text
    • http://lifolibi.sportsontheweb.net/what_machines_to_use_at_planet_fitness_for_abs.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/julagizidaxif.pdfIn PDF document text
    • https://cdn.sqhk.co/fejovuwov/dfzchhc/digital_trends_2020_report.pdfIn PDF document text
    • https://sivajusirev.weebly.com/uploads/1/3/0/8/130814673/1cb9c4bb86d90af.pdfIn PDF document text
    • http://bopolubolef.mywebcommunity.org/taxulivanamokofuni.pdfIn PDF document text
    • https://zuxosudeti.weebly.com/uploads/1/3/4/3/134359900/c8a17819.pdfIn PDF document text
    • https://mufebomilizupa.weebly.com/uploads/1/3/4/6/134608191/5038773.pdfIn PDF document text
    • http://wipunemobak.mygamesonline.org/xerox_wc_7845_i_specs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xefejevife/23770294666.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/marathi_kadambari_in_format.pdfIn PDF document text
    • http://vupaguriwedizid.atwebpages.com/ar-15_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/contemplates_meaning_in_tamil.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/tipers_sensemaking_tasks_for_introductory_physics_answers.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/delta_unisaw_serial_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/ximekukebexikim.pdfIn PDF document text
    • http://zuxokoberibaw.atwebpages.com/71330807333.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_off0000d571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 5204 bytes
SHA-256: 0e394b43c856bfaf66d6e521b83f7189f041bf4c81d47004010920c4279d9284
font_01_sfnt_off0000e756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE756 9852 bytes
SHA-256: 3d3cdf62fe9293bb891bd330dfe6982d909ba5b509b6eda568d6fe9383361287