Malicious PDF — malware analysis report

Static analysis result for SHA-256 38e7e964c97d6dba…

MALICIOUS

PDF

74.1 KB Created: 2021-03-18 10:43:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a33057a8b0ff8f663c2a8cd93b204c71 SHA-1: 39c5175ed1ec0bf223e70697930244b2842cc815 SHA-256: 38e7e964c97d6dba371392df7b523811364e55b6815382661700e7c1746dfbbd
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The PDF structure and embedded content suggest it's designed to trick users into visiting a compromised or malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=label+skin+diagram+worksheet+pdf PDF link annotation
    • http://rebituzugofebo.22web.org/tebefigo.pdfIn PDF document text
    • http://lamorebeduzakoj.22web.org/bonalegimupexafaribupolek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401691/normal_600a091a187cd.pdfIn PDF document text
    • http://movikikigemalo.iblogger.org/spring_framework_tutorial_for_beginners_with_examples.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420767/normal_60286abd2c655.pdfIn PDF document text
    • http://womukob.iblogger.org/xinegavimawajuva.pdfIn PDF document text
    • http://xejiwov.iblogger.org/kizajonolubijobejibe.pdfIn PDF document text
    • https://cdn.sqhk.co/pijavagoke/jigffie/gunbird_2_dreamcast_gdi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481830/normal_600078f46ef26.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/fiabWAO/wix_sign_in_with_apple.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/gopuze/94572209756.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/what_is_an_example_of_invisible_culture.pdfIn PDF document text
    • http://dukazaxotak.epizy.com/36793198085.pdfIn PDF document text
    • http://dunedobaxapekir.epizy.com/bodibejabadili.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/fipapegakol.pdfIn PDF document text
    • http://nilifujajug.epizy.com/employment_application_form_word_template.pdfIn PDF document text
    • http://lazumibuwa.rf.gd/jumefawimisike.pdfIn PDF document text
    • http://bifezuragumizi.rf.gd/ars_goetia.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/twilight_first_movie_watch_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/70977848379.pdfIn PDF document text
    • http://dijuforuzukogem.rf.gd/wetapikogavaxal.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_off0000e37e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37E 5692 bytes
SHA-256: eb29603ce954452daedd345f727349be5eae6770874b750cf4e2540b69e96d0a
font_01_sfnt_off0000f6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BD 10704 bytes
SHA-256: 6fb7b646b8ee5d213808d8e85385b559833e228a3b5d5450e12e17fe0d61db9f

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