Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a58b477f7dae913…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 03:17:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ce9aaf151365260895cf7398c0a0052b SHA-1: 7193a5e9b4b5946bb9fa52525864057ec4191dd7 SHA-256: 2a58b477f7dae9133cfaccaf2f995b7037c3fd3fcf018497e4bc0c0982972d59
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://botokaw.ru/wix?keyword=how+to+use+guns+of+boom+hack PDF link annotation
    • https://cdn.sqhk.co/voxedifi/0hkghAb/catan_brettspiel_assistant.pdfIn PDF document text
    • https://cdn.sqhk.co/kasavakujosi/aVjhy89/34405515261.pdfIn PDF document text
    • http://tehnotop.space/xatibuzikoworiw9y4y8.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/rtifZhj/litz_wire_awg_calculator.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/VgcRhi5/checkers_pizza_manchester_ct_06040.pdfIn PDF document text
    • https://cdn.sqhk.co/wakewafo/gfiarZK/71235070744.pdfIn PDF document text
    • https://cdn.sqhk.co/rigepasemapa/2geiaHU/78476406727.pdfIn PDF document text
    • https://cdn.sqhk.co/bijininabex/dhhjeha/callaloo_recipe_trinidad_caribbeanpot.pdfIn PDF document text
    • https://cdn.sqhk.co/xumirikebixo/Z5Qb69i/monster_racers_legendary_monsters.pdfIn PDF document text
    • http://demask.space/baturawekizep.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwovodegi/gjc2shi/xojoteduvamubewase.pdfIn PDF document text
    • https://cdn.sqhk.co/wofunukasu/cPh9wkA/baby_alive_baby_grows_up_dreamy.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/gjjuhfW/64470452204.pdfIn PDF document text
    • https://cdn.sqhk.co/ramawuvade/PMAUgjg/earn_to_die_3_unblocked_at_school.pdfIn PDF document text
    • https://butilitari.weebly.com/uploads/1/3/3/9/133997497/fozesiziloj_podewegixefem_subefada_fotajodizo.pdfIn PDF document text
    • http://pressit.space/zugubaride7ppm0.pdfIn PDF document text
    • https://wetikifavuzimol.weebly.com/uploads/1/3/1/6/131606122/ketij_madol_fadodaxof_mifijenejebo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nixivirevoso.rf.gd/interim_financial_report_em_portugus.pdfIn PDF document text
    • http://sibovup.epizy.com/why_is_my_razer_headset_beeping.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_off0000e022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE022 5424 bytes
SHA-256: 9cbc13f4e54042f8dc68730f6bfe76ac52147c15335b16042dacc2fe3a9a9d3f
font_01_sfnt_off0000f28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28C 10576 bytes
SHA-256: 695870e4042bbaf89a273191f3f2b53f5b242b8519a639cc2065383d94eba092

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