Malicious PDF — malware analysis report

Static analysis result for SHA-256 a91f2ec7eaaa0b57…

MALICIOUS

PDF

68.3 KB Created: 2020-12-19 22:15:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bb79b0c06a258119fdc0aff018ad028a SHA-1: 9bb7497023d3a9caef0719f69354626ae45faf81 SHA-256: a91f2ec7eaaa0b57ed5c7635a98f85a4ef92a51862f9d981d5c8d0df07cf8cc7
96 Risk Score

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-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://trafftec.ru/aws?utm_term=full+form+of+kyc+in+company PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5fbee25a9df8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449779/normal_5fb8f7b497a73.pdfIn PDF document text
    • https://kosigejobawazi.weebly.com/uploads/1/3/4/3/134315380/5738072c48e80fc.pdfIn PDF document text
    • https://murufafutebe.weebly.com/uploads/1/3/4/4/134473477/sukibibut-zanek-tibifujijuzobid.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/jevuxozazebazug/sarawepebajufamepe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8855eed1-8602-451f-8398-403547b6b740/90693803747.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21b4e176-6d15-417c-ae10-cb0ee2070499/precor_efx_546_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/20189756718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5ee878b-642b-4cff-aa58-7e2113cc25bb/sufixo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff405aec-6a5d-4186-895e-ad640df38e11/43418608286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e28a918-e9af-44d6-97c9-06387bd2c098/ganivenu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f519c5-9319-4471-a34b-7c89a993dc8a/pegupuzatakorimasosifat.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/crb_index_data.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3deb3255-0e6c-46a0-9c94-ba79ec7314ae/24158819809.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_off0000d086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD086 5104 bytes
SHA-256: 0ba755fb7ca1598721ed103f7f1a71831322fa901e373b8f39d1c5ffdcdf28ce
font_01_sfnt_off0000e1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E0 10316 bytes
SHA-256: 008dd785cbc4ee72899612b9f5a5376490d0851d2056ae7bc80becdcad387a15