Malicious PDF — malware analysis report

Static analysis result for SHA-256 978895a6c8760cfc…

MALICIOUS

PDF

61.3 KB Created: 2021-02-15 02:07:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b6c6bfef39f8e497126a0be375278a68 SHA-1: 303f4635e17dec03da4d8c5ff0295c5ea52be843 SHA-256: 978895a6c8760cfc8c31c3ed8aa732b3bfcbaa1f53a7909f05c143577bc745c3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://bologen.ru/wix?keyword=usmc+sniper+training+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/rapovebakeb/WDWhfjc/gw2_super_adventure_box_world_1_zone_1.pdfIn PDF document text
    • http://copyright-security-ig.com/laluxuzimi57dkk.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/ifhiSdC/88529145452.pdfIn PDF document text
    • http://waystep.site/badges_para_imvufzws3.pdfIn PDF document text
    • https://cdn.sqhk.co/duvapegoleva/jbdB2yP/hobby_lobby_closing_in_ct.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380887/normal_6011e1b2e4c02.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/g4ZgcjM/dativelegogela.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/rolotegukelefixorenud.pdfIn PDF document text
    • http://fezigagufi.22web.org/consumer_reports_vacuum_pet_hair.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gojexigubobe.epizy.com/9317678881.pdfIn PDF document text
    • http://mijikabetabup.rf.gd/bacteria_transformation_steps.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_off0000b302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB302 5468 bytes
SHA-256: 75ce1229f9d6fdb6ee5367f421b89ee05c1bb312a575b0f683ec50285078d04e
font_01_sfnt_off0000c586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC586 10280 bytes
SHA-256: 244dd59297a63405fc644965510627952c1620df0f860f41542fbff691af42a8