Malicious PDF — malware analysis report

Static analysis result for SHA-256 455510dea7963397…

MALICIOUS

PDF

68.4 KB Created: 2021-02-05 05:45:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a62698baab3334198e991cf3294b24eb SHA-1: 0190cd2e5b1ca0b5d12156b7713d61545e2e68d3 SHA-256: 455510dea7963397b913945a592c5a9b23fe8aa25d7604d856b9a9b96e0a3e85
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/wb?keyword=guidepoint%20glassdoor%20salary In PDF document text
    • http://rabisoluvilava.iblogger.org/formic_aldehyde_uses.pdfIn PDF document text
    • http://bitebexigare.22web.org/bullet_force_apk_data_high_compress.pdfIn PDF document text
    • http://findfreegirl.com/autocad_3d_basic_exercisesuiqmm.pdfIn PDF document text
    • http://olipaka.xyz/74666281239rmhxr.pdfIn PDF document text
    • http://shoop-fg.ru/42571309082xgcra.pdfIn PDF document text
    • http://nicepics.xyz/the_earth_system_3rd_editiont5fo7.pdfIn PDF document text
    • https://wivepeweg.weebly.com/uploads/1/3/1/4/131455463/2328923.pdfIn PDF document text
    • http://zavarivaemvmeste.ru/first_strike_tiberius_arms_t15_pdw_paintball_gunzu1t9.pdfIn PDF document text
    • https://zabodoxukuxubar.weebly.com/uploads/1/3/4/9/134904472/tuwapolemaz_zolem_lokusawudowom.pdfIn PDF document text
    • http://natnat.fun/50748233744624ss.pdfIn PDF document text
    • http://monongzhlh.space/21_day_fix_vegetarian_food_listkrfk6.pdfIn PDF document text
    • https://rewajugelawuz.weebly.com/uploads/1/3/0/7/130738764/6273203.pdfIn PDF document text
    • http://about-central.com/titration_curves_pogil_answers11325.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/liwara/bescherelle_conjugaison_apk_indir.pdfIn PDF document text
    • http://buwomonemagup.epizy.com/90570436374.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/wedding_card_template_online.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/escape_room_level_22_puzzle_answer.pdfIn PDF document text
    • http://gugawojakopa.rf.gd/72849247051.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_off0000cd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4B 5260 bytes
SHA-256: 91d852bf9dce0f6b6470f8a708240110af932d35e2289220be846c7a575cb286
font_01_sfnt_off0000df4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4A 11048 bytes
SHA-256: e456e7eec4e60e68d9b3be6933b6e96417d3ae82bbbb73dea06ae46c5a5c0a46