Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b7203a28a146df0…

MALICIOUS

PDF

77.9 KB Created: 2021-03-20 12:28:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ec49c37e2622adadaf7f28292f64375f SHA-1: 192718e0c4812da546fdddc9a2b38d716fbd6116 SHA-256: 9b7203a28a146df0e335f4b6eb84199f2d8a01134ff29bd14aa8495dda02e6fb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://soxebez.ru/123?utm_term=interview+questions+for+managers+template PDF link annotation
    • http://ripugusulufiluj.getenjoyment.net/wugimalokumoxekamaw.pdfIn PDF document text
    • http://melowimaz.getenjoyment.net/advantages_and_disadvantages_of_thermal_energy.pdfIn PDF document text
    • http://fosavaxenu.mypressonline.com/68957850423.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421215/normal_6054489b43b93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419846/normal_602e4cd467a76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465263/normal_601f07d9e2934.pdfIn PDF document text
    • https://retetozatinum.weebly.com/uploads/1/3/0/7/130775023/1fd1f91cf47d.pdfIn PDF document text
    • https://morutasatosode.weebly.com/uploads/1/3/4/3/134366393/muzoziripadibi_kusazoge.pdfIn PDF document text
    • https://gazelavulokar.weebly.com/uploads/1/3/4/2/134265358/tigujakotak-votobikanu.pdfIn PDF document text
    • http://dikegebe.mygamesonline.org/drinkwell_360_pet_fountain_cleaning.pdfIn PDF document text
    • https://nutifikidejuz.weebly.com/uploads/1/3/4/3/134347692/00b64882c37101.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/mevuzokekenojab/74061225716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ed7c2fa-5648-4a9c-93b0-0f162f2b2907/black_diamond_ion_headlamp_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/ziletirex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea9ec672-131d-4aa3-93e5-b1fdda0be11a/honeywell_th9320wf5003_wiring.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/weteputovutixakirig.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/lasam.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/eicr_report_frequency.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/664b4491-8953-417e-b182-12d0e9418a0c/is_c2h6_capable_of_hydrogen_bonding_among_themselves.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_off0000f628.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF628 5436 bytes
SHA-256: 58a06c5e27648fdabb7c93523635ac20522ca4f63b23024a302e0ab6dd09d594
font_01_sfnt_off000108a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A9 9948 bytes
SHA-256: 32fc4a30bc08a6dcdf800f7ea9eca4304db1ed7ce4512e94ed5a67d17b97ddd3

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