Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab5daeafa3fcb9ee…

MALICIOUS

PDF

66.4 KB Created: 2021-02-28 06:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f1a1b714f87d79ea6f5c7e5c51b32923 SHA-1: dea79345d5795086b9004bbd2d44b8eb11b29f22 SHA-256: ab5daeafa3fcb9ee54b426e9467851593c2f002cbab2575ae6f36d84ab3c3682
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://zajinet.ru/123?utm_term=who%2527s+afraid+of+virginia+woolf+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/tiwoxebu/hcXgfg8/lasuxasifajuziwoturiw.pdfIn PDF document text
    • http://clubstore.info/inventory_templates_excelejl80.pdfIn PDF document text
    • http://dizurexemubegog.mygamesonline.org/wirola.pdfIn PDF document text
    • http://mujoxoluvisukid.getenjoyment.net/how_to_eat_fried_worms_online_book.pdfIn PDF document text
    • http://pomanonorajalam.22web.org/kindred_by_octavia_butler_chapter_1_summary.pdfIn PDF document text
    • http://butomuzadizur.iblogger.org/the_book_thief_quiz_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/bEXlVhj/lingo_the_word_game_dictionary.pdfIn PDF document text
    • http://erethiztzj.space/36199303918fpsq8.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/jegdOf7/notorious_pathogens_meaning_in_urdu.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/Eha5KpL/62715191090.pdfIn PDF document text
    • http://livelaj.iblogger.org/head_first_java_1st_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/kazamepa/eNpjbib/passport_photo_editor_online_singapore.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zugujegezamuto.epizy.com/editable_calendar_templates_free.pdfIn PDF document text
    • http://mojuwuf.epizy.com/59841787115.pdfIn PDF document text
    • http://burafidofa.epizy.com/kubuvosugedinadagusezoder.pdfIn PDF document text
    • http://lugukejuraxa.rf.gd/marketing_campaign_budget_template.pdfIn PDF document text
    • http://sixijoras.epizy.com/66661457330.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/tabla_de_conversion_de_centimetros_a_pies_y_pulgadas.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_off0000c5a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A3 5504 bytes
SHA-256: bfb4c0751f3724724659b493726a7908341e5add6605c5cfc6b2b442c1b758c4
font_01_sfnt_off0000d87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87E 10488 bytes
SHA-256: 5693da4138766267758af2c59f36d13795ba1d8af74f76a47fe9ce71635b8408