Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee3817caebf6fc0…

MALICIOUS

PDF

73.5 KB Created: 2021-03-09 10:23:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d9728a5d286ac2474b1dcd26e6901db9 SHA-1: b7ea1c779953eb397be0743bf29eaf3fd4417a80 SHA-256: 4ee3817caebf6fc03675a9b17a90682a9740ea3e139385caa4261e92afa32a4d
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, indicating a high likelihood of malicious content. It contains an external URI pointing to a suspicious domain, suggesting it's designed to redirect users to a phishing or malware distribution site. The document body contains garbled text and a nonsensical phrase, which is a common tactic to obscure malicious links or exploit content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/wix?keyword=she%2527s+moves+her+body+like+a+cyclone PDF link annotation
    • http://resokipuga.getenjoyment.net/15632584162.pdfIn PDF document text
    • http://lemakomude.sportsontheweb.net/can_you_use_protein_bars_as_meal_replacement.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/c_oops_advanced_interview_questions.pdfIn PDF document text
    • http://lifolibi.sportsontheweb.net/what_is_chi_in_medical_terms.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/sda_pathfinder_classes_colours.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/kiniguzukorir.pdfIn PDF document text
    • http://watogoda.mypressonline.com/44816513103.pdfIn PDF document text
    • http://zawopim.mygamesonline.org/what_does_rattlesnake_mean_in_french.pdfIn PDF document text
    • http://lusolakidareve.mywebcommunity.org/wemolonumapegeginux.pdfIn PDF document text
    • http://jubigale.scienceontheweb.net/mapuropa.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/galinikagopit/azitromicina_bula.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/virtex_7_ultrascale_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/71199633757.pdfIn PDF document text
    • http://muvekalufisu.atwebpages.com/20096232291.pdfIn PDF document text
    • http://koduwutuvage.onlinewebshop.net/25126971720.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/automata_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/speaking_in_tongues_andrew_bovell.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/desagutorojujunaku.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/7283631498.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/xezojebobafedigusoru.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/20972676204.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_off0000dcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC2 5680 bytes
SHA-256: 0bb3f064797ad1f6f0c4df315fc83759663ec6631fdb345bdcad47f34a54d1ff
font_01_sfnt_off0000eff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF7 12584 bytes
SHA-256: fa2f680783398e7cc1d38d8316eea48645e622e5cda5e13d2bf4ba0a3e699e9f

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