Malicious PDF — malware analysis report

Static analysis result for SHA-256 f488830635380549…

MALICIOUS

PDF

74.4 KB Created: 2021-02-12 11:56:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a7b630d8c76da7f3eddc0de02bedc266 SHA-1: b55dce22eb1f9323f3e6becc70f3ba64fb989714 SHA-256: f488830635380549330a9d21397bfa3d9f191d2a4a55dc239d7b14711703e373
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://maypoin.ru/aws?utm_term=metformin+ampk+agonist PDF link annotation
    • https://cdn.sqhk.co/vadetegubufo/jaaifod/stickman_revenge_3_mod_apk_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/kafexobesa/degf4gg/dungeons_and_dragons_movie_2021_trailer.pdfIn PDF document text
    • http://wimosam.22web.org/koxakixuxumezoxos.pdfIn PDF document text
    • http://kefuxew.22web.org/nofaxemibufabusizepatuzaw.pdfIn PDF document text
    • https://cdn.sqhk.co/gevolonovare/eZ6ijgi/appdynamics_ceo_linkedin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pulupalu.epizy.com/96702653231.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/bloodhound_gang_lyrics_foxtrot_uniform_charlie_kilo.pdfIn PDF document text
    • http://wofukisunoxo.epizy.com/eschooltoday._com_natural_resources_worksheet.pdfIn PDF document text
    • http://neroxijojin.rf.gd/98710006708.pdfIn PDF document text
    • http://meridupomosim.epizy.com/corrugated_sheet_supplier_in_cebu.pdfIn PDF document text
    • http://golujaxi.epizy.com/44929653813.pdfIn PDF document text
    • http://winulesodix.rf.gd/junos_firewall_configuration_guide.pdfIn PDF document text
    • http://kolenexe.epizy.com/pomifolopetiligoraw.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/powerpoint_templates_free_2007_microsoft_office.pdfIn PDF document text
    • http://newabef.rf.gd/emirates_nbd_smart_business_application_form.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_off0000e4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A1 5260 bytes
SHA-256: ec53f978e27a19f971da1485b0dc291ce473a435f2ae0db219b6761c5df17fdb
font_01_sfnt_off0000f67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67D 11384 bytes
SHA-256: 0d7bde0721bc9383a9f105bd09e812b2a181922446493e2a4ac4e2680ecfb519