Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b891283aff10e9…

MALICIOUS

PDF

79.4 KB Created: 2021-02-22 03:28:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: efa710ed064856dc1ba2866a594453f6 SHA-1: a920f357fcac1afff4fe7de8c7e06ff4ba66e62e SHA-256: 09b891283aff10e929659e312777366d465aad0d7f7c5244d117e39afd2fc45d
126 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
  • 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://leonvi.ru/wix?keyword=paradise+toni+morrison+pdf+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4491153/normal_5fe36d6bc10b8.pdfIn PDF document text
    • http://souve.me/persuasive_writing_examples_middle_schoolx517c.pdfIn PDF document text
    • http://4bochki.ru/mumupimebozunojebixe82n2w.pdfIn PDF document text
    • http://christinaanddavid2019.com/1883547118281tbz.pdfIn PDF document text
    • http://wbigs.space/bunexusopebedatewopitolojk1uin.pdfIn PDF document text
    • http://dvertsoff.ru/picadora_de_hielo_manual_chile6adep.pdfIn PDF document text
    • http://xplaintome.ru/descargar_attack_on_titan_tribute_game_android8d3xo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366055/normal_5ff75ab060668.pdfIn PDF document text
    • http://show-visitor.xyz/netgear_router_wps_button_not_workingwgxs6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402517/normal_5fc6663a03b5f.pdfIn PDF document text
    • http://xbet1.fun/specialized_cycle_computer_instructionsderji.pdfIn PDF document text
    • http://physcoo.com/temavofp3cb8.pdfIn PDF document text
    • https://cdn.sqhk.co/gilevetu/bieujgP/vusoxikenixilejuluwalofi.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/petubapizo/70498107668.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/23386343824.pdfIn PDF document text
    • http://kuminatunajovop.epizy.com/mental_health_visual_observations_clinical_practice_guidelines.pdfIn PDF document text
    • http://muvabeso.epizy.com/34520683379.pdfIn PDF document text
    • http://depikurowunegit.epizy.com/duwalasavub.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_off0000fa7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7C 5156 bytes
SHA-256: db325e7311e0f90cdbb9472e88ef554b0d0c57c9dfedc4a4fa96fc24612313f9
font_01_sfnt_off00010bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF0 10240 bytes
SHA-256: 261bcaff802bf9d05c2beb9503e7203655059e2f291ac8e7428a33dc458eb933