Malicious PDF — malware analysis report

Static analysis result for SHA-256 0386bee607fb0b6b…

MALICIOUS

PDF

65.3 KB Created: 2020-11-20 03:12:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 397fc7abbe7593c9c7f31a23afc488c9 SHA-1: 13fbf0aa3112524f81b232d3bc3aa9a66118fc0b SHA-256: 0386bee607fb0b6bf31234dfa0ffd8abd6d9bf8b406143493b4ae5b2fc76df97
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/aws?utm_term=kpmg+uk+annual+report+2018 In PDF document text
    • https://miwebuzoz.weebly.com/uploads/1/3/4/0/134095964/d3871dcc5df0.pdfIn PDF document text
    • https://rukazoxet.weebly.com/uploads/1/3/4/0/134040508/5703321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bc52d56b-d0ab-4fc9-bb9a-4f4cce770b1b/98423677578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0aeb833-8621-4834-9d93-f30ca28e40f6/70961435878.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc1641a1-a363-4378-81e2-50131799c8fc/gojuwedimaki.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/watch_cartoons_online_tv_ninjago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f07ce124-44b0-4c71-a175-e7c05e28aaf9/85767461819.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/rozes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc55772e-4ee2-477c-ad33-b820c987a101/62097114905.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/85426547303.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E2 5348 bytes
SHA-256: 54c10a5585c8b0d0df0dcf2eb3fdf6c47e28f54c07c2a96042e9717faf717d3d
font_01_sfnt_off0000c7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FA 10240 bytes
SHA-256: 8196f21c52227609e79adcad7ac9268f20e3992ad71cdbb33f30f2c8898777c4
font_02_sfnt_off0000eaf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3