Malicious PDF — malware analysis report

Static analysis result for SHA-256 080b5d912c527218…

MALICIOUS

PDF

68.6 KB Created: 2021-02-28 21:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 04a9f688d4a15cbd9349c1941d75c520 SHA-1: dcb358416c4f12cb2856a4f04879aa4abfa1293f SHA-256: 080b5d912c527218cf8d2a151441b92f8f6d23695fe143b38bfdcc75d23d07cd
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://crophysi.ru/award?keyword=paint.net+plugins+pack+%25E2%2580%2593+megalo+effects+%2526+filetypes+v26 In PDF document text
    • https://zokupirijega.weebly.com/uploads/1/3/4/0/134000213/jekevaf-jesoxijo-vujozu-kisupuxawi.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/431814798.pdfIn PDF document text
    • https://jefiwoso.weebly.com/uploads/1/3/5/9/135996081/bevabedibamo.pdfIn PDF document text
    • https://nemapawa.weebly.com/uploads/1/3/0/9/130969411/wirironun_paveduvinujoza_juxifebadaje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490515/normal_600af42374aa1.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/tufirujobogilulatubavila.pdfIn PDF document text
    • https://lumovomudin.weebly.com/uploads/1/3/4/7/134704265/4796363.pdfIn PDF document text
    • http://bodagimama.iblogger.org/all_new_songs_bongo_2019.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/89871460751.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutibebasonuf.epizy.com/23943513892.pdfIn PDF document text
    • http://fowewimoseno.epizy.com/ccnav6_packet_tracer.pdfIn PDF document text
    • http://juludiripo.myartsonline.com/98423150982.pdfIn PDF document text
    • http://liroporegabofi.epizy.com/how_do_i_connect_my_bluetooth_mouse_to_my_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/euromonitor_company_reports.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_off0000c74b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC74B 5368 bytes
SHA-256: db9cc8c27e3c84a876f8ee693dfd517c1d60b6f94a6a0e7b29d6b6f23c373ab3
font_01_sfnt_off0000d99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99B 12624 bytes
SHA-256: 5400c754c60d9c94539b4b474274f9a024e1d73422e17677cb6c6a6c91e96fe8