Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e4fe1d9b658fc07…

MALICIOUS

PDF

70.5 KB Created: 2021-02-22 12:17:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e88fa5d06eeffb584ff2488ec7c57cc5 SHA-1: 9c702b2826ec8aeef19bef8a4d52c2d23cfb4b22 SHA-256: 2e4fe1d9b658fc073111a2e1531aad5c356c8cbf4edc2d4ed68056ed1396c025
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=pixio+px276h+settings In PDF document text
    • https://cdn-cms.f-static.net/uploads/4459170/normal_600f64abe67b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460460/normal_6004e81494221.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378607/normal_5fd031d21366d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376870/normal_601e6870399df.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/czigjhZ/grow_credit_phone_number.pdfIn PDF document text
    • https://wederubumojap.weebly.com/uploads/1/3/5/3/135393822/8849415.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455399/normal_6008536cb6087.pdfIn PDF document text
    • http://com-copyrighit.com/kesuretagegkfhp.pdfIn PDF document text
    • https://cdn.sqhk.co/noxawuge/jgxvIhe/dual_monitor_wall_mount_low_profile.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/gihhahh/diversity_meaning_in_english_kannada.pdfIn PDF document text
    • http://samyog.ru/agnus_dei_music_sheet1qr6b.pdfIn PDF document text
    • https://cdn.sqhk.co/doxufojixene/djh45gi/kofupamotetovusumaruraw.pdfIn PDF document text
    • http://mpvideo.org/asclepius_wellness_product_list0hfzs.pdfIn PDF document text
    • https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/bevafugune.pdfIn PDF document text
    • http://lifegirls.site/xeruvaritotepopllm2.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/pewibim/cidco_form_for_home.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/hoisting_licence_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/bluestacks_1_para_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/padanivozeb/50193025234.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_off0000d587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD587 5180 bytes
SHA-256: a602550f7800759c0021e5fe047209540392bf59c511af96a906da602ef1ef9d
font_01_sfnt_off0000e745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE745 10736 bytes
SHA-256: 0bae2c0e300ceffc473cad7e726008e91ed9d3908623ced72775274179c45aa1