Malicious PDF — malware analysis report

Static analysis result for SHA-256 20b128e37a88f6de…

MALICIOUS

PDF

75.2 KB Created: 2021-01-23 10:39:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: aca2c1394c11c75650c8698218b31bdc SHA-1: 5200b113f59b2afb4620919812ded44aac801ede SHA-256: 20b128e37a88f6de94af56c6dd6b7123f9d243898fce0d7ec3fefbbd50d56778
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a malicious redirector link disguised as a coffee machine manual, aiming to trick users into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of malicious URLs suggests the document is designed to lead the user to a compromised site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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://traffmen.ru/123?utm_term=delonghi+coffee+machine+manual+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460709/normal_5fdb90981ae40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447431/normal_5fc8667be9fe8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388627/normal_5fe1b0ff7270f.pdfIn PDF document text
    • http://fevozogu.iblogger.org/lapomikik.pdfIn PDF document text
    • https://jiwuzutobaduf.weebly.com/uploads/1/3/4/8/134889186/lalefodobunipuv_jekorakon_bexizixes_demafuzipomev.pdfIn PDF document text
    • https://vubeluzuge.weebly.com/uploads/1/3/4/3/134357782/runagakugubilub.pdfIn PDF document text
    • https://site-1166595.mozfiles.com/files/1166595/w3schools_html_css_selectors.pdfIn PDF document text
    • https://site-1173582.mozfiles.com/files/1173582/14243391742.pdfIn PDF document text
    • https://site-1195783.mozfiles.com/files/1195783/vokowifobenafirupewivapi.pdfIn PDF document text
    • https://cdn.sqhk.co/xidupesijij/jMEDjcK/mowebekopav.pdfIn PDF document text
    • https://site-1176413.mozfiles.com/files/1176413/third_grade_reading_comprehension_worksheets_multiple_choice.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410985/normal_5fefa2ef75bbf.pdfIn PDF document text
    • https://fukagopesuzidad.weebly.com/uploads/1/3/1/3/131381553/ruzatamunevesu.pdfIn PDF document text
    • https://site-1225176.mozfiles.com/files/1225176/karipubinivibakute.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374199/normal_5fe5e7cd68bfb.pdfIn PDF document text
    • https://sadozilodefizon.weebly.com/uploads/1/3/4/6/134659806/9509031.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC9 2944 bytes
SHA-256: 302685f8c2dee48b6800a16df262e8e560db22286027962940e691d14f9fc733
font_01_sfnt_off0000e64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64A 5292 bytes
SHA-256: ad188f4b37724bed0749ca993725bf48e1e60feb5eb1a3e6289b5b4e16588a0d
font_02_sfnt_off0000f82c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82C 11960 bytes
SHA-256: 13f8fd6b536bfc5a4a9a86c2cd49c9c67f4c00b5aa372a0ddd87df460a734e35

Open this report in the interactive analyzer, or submit your own file for analysis.