Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3e8fa7d01ffb3a…

MALICIOUS

PDF

80.4 KB Created: 2021-02-26 11:18:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 013232b0d39497f91640cd85a08c4137 SHA-1: 253853dadb7abc36a4f4c53c0e6a2751656daa7b SHA-256: da3e8fa7d01ffb3a5cef7fe5fe5063657f9f28bf751b9cb82d12446131356a40
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://jottigo.ru/award?keyword=sample+organizational+behavior+modification+plan PDF link annotation
    • http://getakabawi.22web.org/47393787333.pdfIn PDF document text
    • https://cdn.sqhk.co/zegapoxasut/gfGkxVg/xorosekuxigi.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/ehdjnM5/miniature_painting_process.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486969/normal_5fcaaacdc2305.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388177/normal_60262c058ab1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447093/normal_5fda72c0be430.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404745/normal_5ff523bfcb672.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zinezalidoratov.rf.gd/87500794644.pdfIn PDF document text
    • http://xewojof.rf.gd/107_drone_test_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/87469571259.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/tencent_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/kurodirowife.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/pifajatujivalipa.pdfIn PDF document text
    • http://gewevamaki.epizy.com/50319945970.pdfIn PDF document text
    • http://jodonurinifos.epizy.com/explain_zygote_formation_in_plants.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_off0000fe32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE32 5744 bytes
SHA-256: cb4f8850273d8ca132328ef99b3407a1c4604511bdb3a946d9e5d451f4d89543
font_01_sfnt_off000111a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A1 10196 bytes
SHA-256: 03274637777cde5b16f0d4da626bc6deb384bbc9e2310645077c5b67483f7fd9