Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b18ada8c8af8a44…

MALICIOUS

PDF

64.1 KB Created: 2020-11-21 07:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 744849093cdc3fd568b489e675325053 SHA-1: 01674346706f9341ef5771d0b9b02067e6d558bb SHA-256: 0b18ada8c8af8a44243c383b888ea63a1b4d430225199f14420568ef89d310a7
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that points to a suspicious domain, likely intended for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the detection suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://trafficel.ru/123?utm_term=5+cualidades+positivas+de+una+persona PDF link annotation
    • https://balejumefem.weebly.com/uploads/1/3/0/8/130814467/sopebozelumoselop.pdfIn PDF document text
    • https://durabaseduxoj.weebly.com/uploads/1/3/4/2/134235759/nafaladumafuso_dupasuferipelix_tonevi_toboxasijobowo.pdfIn PDF document text
    • https://kobizixudowizeb.weebly.com/uploads/1/3/4/4/134402546/586683387e2.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/vezosoluvezoj/juguvawi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c91950a-2567-423a-8fe2-dd37ac9fb73d/sudiwipuxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c4cdf86-01be-4968-b314-5a20685b74a7/un_oso_y_un_amor_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/h_driver_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbd1b870-2260-4097-a1aa-bc4d56a286f4/xewixasefi.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/63557148478.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_off0000be46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE46 5156 bytes
SHA-256: fee9df036e8cb5b7c9efd19549a43fcfe2ed99d0da13ac10c47c70f4a27411ce
font_01_sfnt_off0000cfe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE4 10568 bytes
SHA-256: 2afa1e7698ec90f4713967455225999d438baa2e542c48d8f4ff745ff84578f8

Open this report in the interactive analyzer, or submit your own file for analysis.