Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7fa7a41bf4cf8b…

MALICIOUS

PDF

69.2 KB Created: 2021-01-20 05:00:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 84222f1f0d3607934005248128872a0e SHA-1: 62cae5786ca3bb34f2c3a0d7d3da2382e5ba1c4b SHA-256: 3e7fa7a41bf4cf8b513dc28a405b2afc52b8676668f08e439c41de82038c1f81
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/wb?keyword=best%20fishing%20diary%20app PDF link annotation
    • https://site-1168500.mozfiles.com/files/1168500/51497119101.pdfIn PDF document text
    • https://site-1178201.mozfiles.com/files/1178201/gipifefaxik.pdfIn PDF document text
    • https://site-1247322.mozfiles.com/files/1247322/spring_boot_jasper_report_example.pdfIn PDF document text
    • https://site-1166749.mozfiles.com/files/1166749/first_4_words_of_the_declaration_of_independence.pdfIn PDF document text
    • https://site-1172629.mozfiles.com/files/1172629/bhaktha_prahlada_telugu_full_movie_free.pdfIn PDF document text
    • https://site-1171500.mozfiles.com/files/1171500/75238045878.pdfIn PDF document text
    • https://site-1166725.mozfiles.com/files/1166725/baby_care_products_shop_near_me.pdfIn PDF document text
    • https://site-1258855.mozfiles.com/files/1258855/soweto_gospel_choir_free_sheet_music.pdfIn PDF document text
    • https://site-1176453.mozfiles.com/files/1176453/chocolate_cupcake_recipes_without_baking_powder.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xesigeze/mozilla_firefox_terbaru_2019_64_bit.pdfIn PDF document text
    • http://temekem.epizy.com/basic_life_support_steps.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/wijajuk.pdfIn PDF document text
    • http://lilexod.epizy.com/ab6ix_breathe_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/64461645753.pdfIn PDF document text
    • http://xesesezaxemu.epizy.com/wuxejimamiwekojabiwojuzug.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/sign_nsfas_loan_agreement_form_online_laf.pdfIn PDF document text
    • http://mapiwenasadig.rf.gd/tobirawawi.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/frontline_iep_direct_ct.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_off0000d238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD238 5420 bytes
SHA-256: afa73c0ccc7cfffb9e9ed128944d728e82d86c27ac04b8cd510a2fe6fff74ad0
font_01_sfnt_off0000e4b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B6 10316 bytes
SHA-256: 51db4f039f6d01fb8e38a3cca9201b33e7bde96c5ae436405511d584e779b600