Malicious PDF — malware analysis report

Static analysis result for SHA-256 8740cce30e4cec31…

MALICIOUS

PDF

72.8 KB Created: 2021-03-02 14:24:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d12504bcc0746c67141e5b3bb7eaf239 SHA-1: c07b42c3eafe93baed51f6563a389c0c969cf0a5 SHA-256: 8740cce30e4cec316f8bcd1bea93767847c2e386359eb7f282e5b1ac95b1a214
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, suggests a lure related to a review, aligning with common phishing tactics.

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://soxebez.ru/award?keyword=lessons+from+madame+chic+review PDF link annotation
    • https://cdn.sqhk.co/kopenanum/asFgAZy/39627087064.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/samir_okasha._2016._philosophy_of_science_a_very_short_introduction.pdfIn PDF document text
    • http://leopolds.space/905928532631dksx.pdfIn PDF document text
    • http://nibajafij.medianewsonline.com/value_of_games_in_education_article.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/mRTNjd7/uk_knives_and_tools_review.pdfIn PDF document text
    • https://cdn.sqhk.co/runetonorox/igshchf/voltage_drop_definition_physics.pdfIn PDF document text
    • http://italywow.space/kuvowaduwexa5mglo.pdfIn PDF document text
    • http://zakewabo.scienceontheweb.net/87736822795.pdfIn PDF document text
    • https://cdn.sqhk.co/kejofuvata/gjRVTd3/trucos_para_metal_slug_3.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/zinudipir/crystal_report_2005_runtime_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/gitlab-_ci._yml_artifact.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/47786995580.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/velokisifosiveku.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/bespeak_forms_of_verbs.pdfIn PDF document text
    • http://jupejorix.epizy.com/baahubali_2_telugu_hd_movie_free.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_off0000e1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AC 5324 bytes
SHA-256: bf5215fd1b5f647acc6b204d0591b9a21dbe4b6138e226fd9a83bf2e6ae1b5e6
font_01_sfnt_off0000f3b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B0 10292 bytes
SHA-256: 6eeb018f428754100ee618b1c56c5213b43df98fab8c76d574360fdca7380536

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