Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2ac05a9659f7ff1…

MALICIOUS

PDF

67.6 KB Created: 2021-03-03 20:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b4e327fc39a8a53654e6dc35bdfe2723 SHA-1: 6caa96522816a05cfd4e735ab47598599053467e SHA-256: a2ac05a9659f7ff1f07622f859c7e9d934b874f8318c09f86aaa2aeb31eaa52e
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://bologen.ru/award?keyword=libro+de+la+sep+5+grado+historia+2019 PDF link annotation
    • https://cdn.sqhk.co/silutoge/jcjcgcg/degidunuwavi.pdfIn PDF document text
    • https://cdn.sqhk.co/badiboxa/hchj2wz/murderer_online_hack_1._1._3.pdfIn PDF document text
    • http://lezobasametu.22web.org/good_interview_questions_to_ask_a_daycare_teacher.pdfIn PDF document text
    • http://jibozakux.22web.org/how_to_become_a_vet_tech_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/6hiRQhh/gujezamujeromol.pdfIn PDF document text
    • http://delinapod.mypressonline.com/57515295225.pdfIn PDF document text
    • https://bipovubukixepev.weebly.com/uploads/1/3/2/7/132740720/96bf41280932.pdfIn PDF document text
    • https://cdn.sqhk.co/bujiwamovul/gggd8Xu/livixon.pdfIn PDF document text
    • https://fidimamafiw.weebly.com/uploads/1/3/4/6/134624465/guxaxazovegez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vagaxalelevirot.epizy.com/19760949657.pdfIn PDF document text
    • http://zevesijuduma.atwebpages.com/15485058185.pdfIn PDF document text
    • http://xajojunedaxuda.epizy.com/zotoribojilanudo.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/what_does_linear_plot_line_mean.pdfIn PDF document text
    • http://fizuvofodiku.epizy.com/cules_son_las_enfermedades_ms_comunes_del_estmago.pdfIn PDF document text
    • http://segigeserife.epizy.com/ausformulierter_lebenslauf_unterschrift.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/whats_the_coldest_city_in_the_united_states_today.pdfIn PDF document text
    • http://soxupagab.epizy.com/cyclops_15_million_candlepower_spotlight.pdfIn PDF document text
    • http://nenunosulijud.rf.gd/ausformulierter_lebenslauf_polizei_beispiel.pdfIn PDF document text
    • http://tefesapebeto.rf.gd/8820326818.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_off0000c957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC957 5908 bytes
SHA-256: aafb9ec885c3d3b5c293bdc25d25cc7ef84042e44e001243b8c82e814a6f229f
font_01_sfnt_off0000dd67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD67 10976 bytes
SHA-256: 11c8c25aaae044c37bad5aff9496e49f150c4f46b76c02bef466053812ab6183