Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b6e3e0563858b78…

MALICIOUS

PDF

70.4 KB Created: 2021-02-26 02:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 210ce19a7a76d2bd9bf545d8c8c5972d SHA-1: c356e794b15a480020dd4db80bda73bd091ae1c5 SHA-256: 1b6e3e0563858b78f60b7205e019657aa0b83c109c94f99053a03c7a0b7412d8
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://yafferge.ru/wix?keyword=lockwood+and+co+the+whispering+skull+pdf+download In PDF document text
    • https://sivabujik.weebly.com/uploads/1/3/4/0/134017760/8968707.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/ethical_hacking_degree_course_in_kerala.pdfIn PDF document text
    • https://xetutimi.weebly.com/uploads/1/3/0/9/130968997/017b68f176e7e0.pdfIn PDF document text
    • http://paselon.getenjoyment.net/hansel_and_gretel_bakery_near_me.pdfIn PDF document text
    • http://hookup756.fun/vilujekejolofajo231z9.pdfIn PDF document text
    • http://fabermanufacture.ru/you_can_draw_transformers_download6ehn1.pdfIn PDF document text
    • http://delojenopow.66ghz.com/android_emulator_software_free_for_pc.pdfIn PDF document text
    • http://dazolovegom.mygamesonline.org/cuanto_es_1_8_pulgadas_en_milimetros.pdfIn PDF document text
    • https://xujopikaxatanow.weebly.com/uploads/1/3/4/8/134850499/rovexur.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/research_design_creswell_citation.pdfIn PDF document text
    • http://kurekarer.22web.org/beautiful_images_of_nature_hd.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/zesotat/the_experience_economy_goodreads.pdfIn PDF document text
    • http://bojifif.rf.gd/clostridium_difficile_diagnosis_guidelines.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/one_of_us_is_lying_audiobook_google_drive.pdfIn PDF document text
    • http://lanikudawojag.rf.gd/caqh_attestation_form.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/yamaha_mg10xuf_driver.pdfIn PDF document text
    • http://wadatenut.rf.gd/49247996917.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/widuzidebipovuxiperanu.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_off0000d853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD853 5516 bytes
SHA-256: 866e26e691517074503beecd0078af0fbd3f8e4be6c225ee24fc7d7d2f4e9e98
font_01_sfnt_off0000eb2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2D 9708 bytes
SHA-256: aa24a3c770114040a4611a7ed154088ed2f737cc210abf4b83953af973bba180