Malicious PDF — malware analysis report

Static analysis result for SHA-256 6344476d61cd523a…

MALICIOUS

PDF

86.0 KB Created: 2021-03-12 12:04:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 287ae9993e47c5679a91c90b81c5cb19 SHA-1: 43b3cabb1f7fb0837994fba9b09aa061db1bde48 SHA-256: 6344476d61cd523ac13ecf4c095df9e2821e35bff15c7a185fccecc068fe343d
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://baarspo.ru/wix?keyword=state+bank+of+india+pensioners+association+chandigarh PDF link annotation
    • http://stassikorskyi.com/extensor_largo_del_dedo_gordovsyi3.pdfIn PDF document text
    • https://wiwamimojuwat.weebly.com/uploads/1/3/0/8/130813692/8d808d4a1f9c.pdfIn PDF document text
    • http://yeswins.space/accrual_method_accounting_balance_sheet1ohz6.pdfIn PDF document text
    • http://bazis-rostov.com/368843394387xx3p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460057/normal_5ffb2979c54ea.pdfIn PDF document text
    • http://azakalaza3.xyz/41563023003si8gz.pdfIn PDF document text
    • http://help-igcopyright.xyz/64787562824kz6ph.pdfIn PDF document text
    • http://bapomiju.iblogger.org/41330967102.pdfIn PDF document text
    • http://optalpha.com/bison_parser_manualrlhgu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476954/normal_60113559e97af.pdfIn PDF document text
    • https://xoxomupufolud.weebly.com/uploads/1/3/0/9/130969418/dea7530336e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374376/normal_5ff5c17f5b52a.pdfIn PDF document text
    • http://healthyforczechrepublic.site/geometry_dash_worldlqbgg.pdfIn PDF document text
    • http://wuvudazesog.22web.org/75172809811.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vosowetawevu.epizy.com/lg_stylo_4_thinks_headphones_are_plugged_in.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/695b2bb3-9eab-45a5-bbac-9b51107c227b/88238865445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a19b389f-b1ab-4821-8700-349b0309279c/how_to_program_toshiba_remote_ct-90302.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d398e3d-9d15-41a8-ba30-997e8057ed1c/xonegisawododi.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_off00010ad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD3 5692 bytes
SHA-256: ebe60e6440d8ab676dba6d408133d9bab781ef940ed0c67130c0c4a376bfb554
font_01_sfnt_off00011e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E2B 13412 bytes
SHA-256: ecd3ba0ac073e0f2083f4b8a9042c5509448fa3f90a77b47bfa42a83e0120534