Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d3e3e13a1ea010…

MALICIOUS

PDF

58.9 KB Created: 2020-11-17 14:58:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 745866ff714ee8809d3329f08934565a SHA-1: 11cbebe6b645b5be7748f766b461b6dafb2dcefd SHA-256: 60d3e3e13a1ea01096fb9701447bc839798755f00b949d9e48750fb68d38ec4f
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 0.9996

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
  • 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/123?utm_term=physical+properties+worksheet In PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/palaj_xofepevez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446491/normal_5fa4e744b758d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417314/normal_5f989dd64628e.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/9625103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403264/normal_5f9163ca8f498.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409244/normal_5f97cea055092.pdfIn PDF document text
    • https://siwuretigi.weebly.com/uploads/1/3/4/3/134319511/c198914e1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422645/normal_5fa04eb45648c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5fae26e55d954.pdfIn PDF document text
    • https://vabejodero.weebly.com/uploads/1/3/4/3/134378136/592551da5b3dc54.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/gotijejaj/49905331974.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/tinelo.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_off0000ab39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB39 5280 bytes
SHA-256: 08f9960c5ef97cf91dce733e3cd0bb549d043d7cbd784439a8bb35ef94eb21c6
font_01_sfnt_off0000bd41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD41 9856 bytes
SHA-256: 9c99fbce5527b0460a6fa78cc48b8a2d396a98b2e7c170a1f00e8f37c320a8e8