Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee624f0cad6f63e…

MALICIOUS

PDF

70.5 KB Created: 2021-03-06 14:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 570c308ac8c9f193440202c6ebb278d4 SHA-1: 08387b33dbb248af85f66ae2f91f48288777cb50 SHA-256: 5ee624f0cad6f63e109e34a52266a1d0321230d9adc16c8d259159ea69f92b03
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=how+to+get+a+new+cable+box+from+comcast In PDF document text
    • http://copyrightsupporteds.com/71229816108kub2j.pdfIn PDF document text
    • http://btsworld.org/rebepiwojurediwugirosd6z8.pdfIn PDF document text
    • http://espaceabone.com/pajariwizuvepifadagodus9qa6l.pdfIn PDF document text
    • http://pravagims.net/essentials_of_marketing_research_5th_editionpwz7j.pdfIn PDF document text
    • http://reform-st.ru/49286913540duzx9.pdfIn PDF document text
    • http://autolombardpro.ru/fokimiputczneq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495526/normal_5fc9d05248941.pdfIn PDF document text
    • http://idealicagocce.site/what_is_a_guardian_ad_litem_for_adultslb70e.pdfIn PDF document text
    • http://sendgrid-de.com/84192107711bfzxd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_601048ee0dbd4.pdfIn PDF document text
    • http://bella24.xyz/tiny_bubbles_ukulele3hcpl.pdfIn PDF document text
    • http://lidlid.xyz/colonies_pros_and_conspqe4r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tivusanezidiv.rf.gd/how_much_are_beats_going_to_be_on_black_friday.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62f94380-d861-4298-82eb-5df3c08c576f/is_kaplan_a_good_sat_prep_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07736bbf-b0a8-4e1e-84ae-c9f234263761/datavap.pdfIn PDF document text
    • http://zubuzonaf.rf.gd/bootstrap_simple_template.pdfIn PDF document text
    • http://birofasadonu.epizy.com/bullhorn_peoplenet_timesheet.pdfIn PDF document text
    • http://nazonuretowu.epizy.com/byomkesh_bakshi_serial_full_episode.pdfIn PDF document text
    • http://bededatesaw.epizy.com/i_am_mantra_twitter.pdfIn PDF document text
    • http://monufojama.rf.gd/givalujubi.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_off0000d784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD784 5460 bytes
SHA-256: 85c6e0a89e5954d1ca564a7887838a152997aaeb350bd30449558e9baf95714f
font_01_sfnt_off0000ea1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1E 10152 bytes
SHA-256: 747f77530cd0097b4ae1350dd968b9fcc5aeefc057898d7f010ed1b7c999970c