Malicious PDF — malware analysis report

Static analysis result for SHA-256 e223e3cc80e9470b…

MALICIOUS

PDF

78.9 KB Created: 2021-05-12 09:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4e42cb690c10c46775e1db2afdfb091c SHA-1: 751e6c9fdd0c94d84a41c276ab30e030e48fc796 SHA-256: e223e3cc80e9470b75cf86f231805c6b5aabeb7fec9ec26afd3517ab61b31764
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware-hosting site. The document body, though heavily obfuscated, contains keywords related to 'lawyer salary', suggesting a lure for a phishing campaign.

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://leonvi.ru/strik?utm_term=lawyer+salary+in+south+africa+2020 PDF link annotation
    • http://lupelisizi.medianewsonline.com/attitude_personality_test.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501054/normal_6018cbc956f3d.pdfIn PDF document text
    • http://pexarinolal.mypressonline.com/la_biblia_serie_completa_espaol_latino_online.pdfIn PDF document text
    • http://mgacessoria.online/71690622634lcecl.pdfIn PDF document text
    • http://kinokaiff.space/52061205800cco0x.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/gaxazebeda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427504/normal_600e02d95a21b.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/hobart_140_vs_lincoln_140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381740/normal_60050538603c3.pdfIn PDF document text
    • http://xesapuwax.mywebcommunity.org/lupaxunubodak.pdfIn PDF document text
    • http://copyright-central-media.com/what_is_a_month_to_month_rental_agreementa9zz7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416316/normal_600561f12bd8a.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/kevava/abuta_grandifolia.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/ripovuterimud.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/hazop_study_report_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcb52a31-55a9-490a-aaee-0d7b574f28e8/pioneer_vsx_822_k_factory_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf08ca78-685b-4166-8245-783fc108d5f1/ferrari_812_superfast_engine_location.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/68225864835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bae1574-cffb-49d9-8011-aabf9e8e126e/56184092353.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FF 5376 bytes
SHA-256: d4bd8af4c05ab7cca8588f92b8815024cb6732aa4cf6084340b8206b5d774629
font_01_sfnt_off0001065e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1065E 11296 bytes
SHA-256: c4197d669b407c2069bc18e2796aecf4a5b6df7ee20ca16e50651693baccea7f

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