Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b1ebbfa0a8d0b9…

MALICIOUS

PDF

65.8 KB Created: 2020-12-19 00:17:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 42e0eafd1af06ae6779db9720fa986dd SHA-1: 4e5c9cd1bd968900e16898dcaf55ad3ba382e660 SHA-256: 59b1ebbfa0a8d0b9432f3ba2d79426297fb47407350f6076a9aaf3f6e544dbed
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://trafficel.ru/strik?utm_term=ego-dystonic+homosexuality+and+ocd PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453730/normal_5fa3aecb78ceb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5fa36250af935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393632/normal_5f9ae4e348f53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426676/normal_5fb4df3b4890b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462726/normal_5fc1aecd49500.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/96f94c94-52b5-4a67-a8dc-d7ab8eaf991a/81789157170.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10471c30a162e0c531f35/t/5fcac21673d16755532fe0aa/1607123478162/scruffy_looking_nerf_herder_t-_shirt.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bef4084698658e5d6cda/t/5fc223e51972c46e3ce70c03/1606558694255/pieces_of_eight_value.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9700274e-e942-4e0c-87e2-ec34dfba9a0d/lucy_heartfilia_dress.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5ce038139af037666b757/t/5fcd3e68920f47545ba05ee9/1607286377238/12042142606.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf8de64a3cc4058a444e2/1606219998585/61826864374.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce1b29cd8500165ad4a92d/t/5fd67cf313a48350e816648b/1607892211906/practice_writing_thesis_statements_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc338c4be9b69395119d659/t/5fc5ae6618e72e5fdb9bd805/1606790758613/liquid_asphalt_crack_filler.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/litasodid.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_off0000c56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC56B 5416 bytes
SHA-256: f2bf07802a3fd4355803a17b813ff75a1c6dd196015ab7c0577845b8d39a3a09
font_01_sfnt_off0000d7cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CB 10288 bytes
SHA-256: 546ed0b5700ed73d12bda8e448ee6a072e31081bd2a022178446830fec2b86cb

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