Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac9d9030b922a979…

MALICIOUS

PDF

66.3 KB Created: 2021-02-27 20:31:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8605bdf5bb8d93cd866b8e3b69a468ce SHA-1: 753ea4685330b4ac1b384c15e1e107dab26e507b SHA-256: ac9d9030b922a979b7e40d70b04ded074e26de4ae392e32da4b6a59010fe5f77
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://xezojetit.ru/aws?utm_term=audi+s4+avant+used PDF link annotation
    • http://tofosasolamet.iblogger.org/dakosutofewelagam.pdfIn PDF document text
    • http://clientesdkb.com/jiwuremej1o2ot.pdfIn PDF document text
    • http://esagafow.fun/xujiranuvulortkmc2.pdfIn PDF document text
    • http://eushopvmn.site/pasowisivulupikajumohsenp.pdfIn PDF document text
    • http://dotixomovi.sportsontheweb.net/355_gears_vs_410.pdfIn PDF document text
    • http://vatidenow.medianewsonline.com/tubexunovojokunivede.pdfIn PDF document text
    • http://nijalatol.mypressonline.com/organic_chemistry_basics_in_telugu.pdfIn PDF document text
    • http://vumonivaxozutod.mypressonline.com/at_what_temperature_is_fahrenheit_and_celsius_scale_the_same.pdfIn PDF document text
    • http://tramlaweq.online/331414878221c1ax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rosajeku.myartsonline.com/yo_yo_ma_fort_worth.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/girugekupebanirugej.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/8552487014.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/map_of_the_world_with_country_names_and_capitals.pdfIn PDF document text
    • http://retudazugo.rf.gd/brightcove_video_mac.pdfIn PDF document text
    • http://bovifuxabobi.epizy.com/19297988262.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_off0000c750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC750 4828 bytes
SHA-256: 28f695df3ce532608761b6308a42f343f4816d11265ce8b777d53ec85a082c49
font_01_sfnt_off0000d7de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DE 10884 bytes
SHA-256: 102b8a4522225e442f6e854bbe41bb0045b286dca0879ca0600b8adde255de13