Malicious PDF — malware analysis report

Static analysis result for SHA-256 00110b16dee81eb1…

MALICIOUS

PDF

67.4 KB Created: 2021-01-30 22:58:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: a9fad1c2f95ec0924e3c99b19c4a7018 SHA-1: 360d990b6917491fb62293aae486e9dee76c194a SHA-256: 00110b16dee81eb18ee72534c525b8ad606ba9bb3cae418228b6a650e5722ec7
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=lund+1825+pro+guide In PDF document text
    • http://fakts.design/flights_to_honolulu_hawaii_from_chicagoh10ps.pdfIn PDF document text
    • http://bodatajusabobof.22web.org/aeromedical_services_information_management_system_asims.pdfIn PDF document text
    • https://kefexogutifega.weebly.com/uploads/1/3/5/3/135309882/b956c1a36797e8.pdfIn PDF document text
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/bakuxi_jewik_ziropowijagivek_gabena.pdfIn PDF document text
    • http://molipetofokeva.22web.org/albuterol_davis_drug_guide.pdfIn PDF document text
    • http://italiabeach.space/89372880493d2rxz.pdfIn PDF document text
    • http://svoydvalend.xyz/7866937930673oby.pdfIn PDF document text
    • https://kirejoji.weebly.com/uploads/1/3/1/4/131483098/bugipo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404740/normal_60000b810baf4.pdfIn PDF document text
    • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/5058988.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://purevaxa.epizy.com/odia_bhajan_kirtan_song.pdfIn PDF document text
    • http://gakupoxefale.epizy.com/c_o_kancharapalem_movie_free_tamilrockers.pdfIn PDF document text
    • http://juxudawalugevop.epizy.com/converting_fractions_decimals_percents_worksheet.pdfIn PDF document text
    • http://rupeguv.epizy.com/1417495035.pdfIn PDF document text
    • http://wilafeduzavedew.epizy.com/pepon.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_off0000ca79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA79 5152 bytes
SHA-256: fc1d901d0976c549546a9afcecfcc6df7e82d5a2422fe031bdcdb6526debc42f
font_01_sfnt_off0000dc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC18 10804 bytes
SHA-256: c57c0fc190b33cf8b147f2468ae1a4aa6d438840f73c3fe78cec655d77b343eb