Malicious PDF — malware analysis report

Static analysis result for SHA-256 d53ddc52066e6b2a…

MALICIOUS

PDF

112.4 KB Created: 2021-03-22 03:57:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 8f27858ece3869c86a24dff14325fc28 SHA-1: 10001e8b094e3e2c535fb502ca092e49ac5c8104 SHA-256: d53ddc52066e6b2a213f6717213d8d2c2d8c19c1ee957161ccd4690dd3d87201
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 a suspicious domain, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to a 'service manual', indicating a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=2006+saturn+ion+service+manual+pdf PDF link annotation
    • http://rikafitamedad.medianewsonline.com/sufopefowipunixukipewe.pdfIn PDF document text
    • https://zivadufo.weebly.com/uploads/1/3/0/8/130874541/d95481.pdfIn PDF document text
    • https://kevavabine.weebly.com/uploads/1/3/1/4/131406582/rojugigutidize_ginopoxizipa_deluxug_vurako.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/rovogipulivuwujar.pdfIn PDF document text
    • https://vebavorosufate.weebly.com/uploads/1/3/4/7/134742301/xirevofoja.pdfIn PDF document text
    • http://muzesumulel.getenjoyment.net/research_proposal_sample_in_educational_psychology.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/wopari/chennai_express_full_movie_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/html_form_blank_action_attribute.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/61796361251.pdfIn PDF document text
    • http://rozekajabunupet.rf.gd/antiretroviral_drugs_pharmacology.pdfIn PDF document text
    • http://radiviwix.onlinewebshop.net/lopadugixabifavodeduxudi.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/waguk.pdfIn PDF document text
    • https://e39bfc17-a898-4016-ac91-fc9303c112df.filesusr.com/ugd/b5068a_44fa309706984244befdc3b0f4650265.pdf?index=trueIn PDF document text
    • http://dawifugoxumevej.rf.gd/cetosis_definicin.pdfIn PDF document text
    • http://panidipelenaju.epizy.com/siradimudizivaw.pdfIn PDF document text
    • http://regenazuwirege.epizy.com/ps2_emulator_for_android.pdfIn PDF document text
    • http://kisomelug.rf.gd/who_played_tom_bombadil_in_lord_of_the_rings.pdfIn PDF document text
    • http://konevimojo.epizy.com/example_cv_templates_free.pdfIn PDF document text
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_fbbb45778dff48f3a24e4e2dc8045e6c.pdf?index=trueIn 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_off0001799f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1799F 5696 bytes
SHA-256: 811f7826f8e6616732e2a997d0aeb590f014943e0a8049f7d3897e6dcb6e4e33
font_01_sfnt_off00018cec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CEC 11296 bytes
SHA-256: adc5f2f46693ef79f1099420f6dbd1a612218c8ff4c66f4fe1b43dff640de37d

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