Malicious PDF — malware analysis report

Static analysis result for SHA-256 b095cecf16b9d997…

MALICIOUS

PDF

70.8 KB Created: 2021-03-18 19:51:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3345d985f4f1637deac85457ae786d42 SHA-1: d75e8c07ebd88f2fb6a8c9f3f3ef6ce8d8373ace SHA-256: b095cecf16b9d997a833ba2466a17c15e538fde084d94ff8245ca471f78a3a8f
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 0.9998

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
  • 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://ponafet.ru/strik?utm_term=how+to+turn+on+eco+defender+water+heater PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480588/normal_6025c4df47d74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_603531086a1f3.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/nusojudoloxuvemuni.pdfIn PDF document text
    • http://kotudekudoges.getenjoyment.net/jakakudenisazezetim.pdfIn PDF document text
    • http://vekisonoloze.sportsontheweb.net/cutting_edge_third_edition_upper_intermediate_download.pdfIn PDF document text
    • http://pevawafo.iblogger.org/99578809904.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/wewiro/pirexitudogewizebilib.pdfIn PDF document text
    • http://givaradipokez.epizy.com/17957529644.pdfIn PDF document text
    • http://gomojopovin.rf.gd/70210813723.pdfIn PDF document text
    • http://fanutebuxus.rf.gd/breadman_plus_tr800_manual.pdfIn PDF document text
    • http://motefif.rf.gd/77402229534.pdfIn PDF document text
    • https://s3.amazonaws.com/zubata/gorixo.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/gofuverumolokudegewedovi.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/rixazepedemaxogaraxugoma.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/jixuzat.pdfIn PDF document text
    • http://xutakubu.epizy.com/math_facts_practice_worksheets_1st_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/milton._j._s._and_arnold._j.c._introduction_to_probability_and_statistics.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_off0000d959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD959 4952 bytes
SHA-256: 9c844e828811284f5e16b0d1624634d3dd2c1e57a66d40dbfa7316f51b3d4fb3
font_01_sfnt_off0000ea3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3F 10384 bytes
SHA-256: bbeaa3e6718c5ba2a1ef43f81329f356b558948bdff1716dfc6097da26f7f4c7

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