Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bab1304be87b81c…

MALICIOUS

PDF

106.0 KB Created: 2021-03-30 08:53:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 814985baa70c6befabdc504fc3bcbd3c SHA-1: c56b74abea6bf99f0135b9a998c54d11ae7418a1 SHA-256: 7bab1304be87b81cb6de3d0980da603e71a6072aaf59a6882120141666ed6845
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/award?keyword=public+finance+n5+textbook+pdf PDF link annotation
    • http://lixebafevoku.mypressonline.com/ravebixopesigomufabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486778/normal_601f408d962af.pdfIn PDF document text
    • http://lebuvowune.getenjoyment.net/50920127378.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449406/normal_6046c00eafdeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404310/normal_603ff3604d6ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444374/normal_60351a7a52310.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489440/normal_5ff0cffdc918c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494877/normal_5fd1c3376a0f7.pdfIn PDF document text
    • http://womuvizitina.mywebcommunity.org/pdf_to_word_converter_i_love.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412588/normal_602d419dd7542.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sirilamezowi.epizy.com/19478510622.pdfIn PDF document text
    • http://gemovimuwopete.atwebpages.com/valve_actuators.pdfIn PDF document text
    • http://vowenop.epizy.com/siguka.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/audacity_guide_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/dupow.pdfIn PDF document text
    • http://jatoxat.atwebpages.com/71202093016.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/gegazod.pdfIn PDF document text
    • http://dasudigakufise.rf.gd/fisutufogi.pdfIn PDF document text
    • http://wipadafefuxasi.onlinewebshop.net/25084420280.pdfIn PDF document text
    • http://bifiwapaz.onlinewebshop.net/o_namorado_de_aluguel.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/78145209562.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_off00015f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F53 5272 bytes
SHA-256: 3b18de4c0d87fe1db070e7ffc695912bc76667b78b665ef61d74676245c5a171
font_01_sfnt_off0001715d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1715D 11780 bytes
SHA-256: 5e8fd247da406b3558a797d38fa69d6734075b620af7fe142812828422c85348

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