Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9547fb271091c6d…

MALICIOUS

PDF

69.1 KB Created: 2020-11-11 22:23:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 60f69d0aca1dae33f29fb3e8fec375ae SHA-1: 01e3b6c58d87e145c5c35f3145408fff0d91ec88 SHA-256: e9547fb271091c6d9f28cb17eb20d374f6f6125b2b11a3010b54db9553d63493
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by multiple heuristics and an ML classifier, including ClamAV identifying it as a phishing trojan. It contains a large number of external links, many of which are likely part of a link farm designed to direct users to malicious websites. The embedded URLs and the PDF structure suggest an attempt to exploit users through deceptive content, potentially leading to phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=the+greatest+showman+songs+ming PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377642/normal_5f9ddcf1e61ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375070/normal_5f8d27a00d5db.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/zanazanekoxel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401711/normal_5f9b00d3da4cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388629/normal_5f935c49935d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379744/normal_5f8c786bcb6e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444115/normal_5f9d11e59441a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f99e357f364d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367927/normal_5f910890112cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372376/normal_5f89aa85c9544.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375887/normal_5f89f6ebb01d1.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/henghuili-files2/71445250521.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96ec8318-452e-4471-a82a-009f00a9640a/yours_truly_jack_the_ripper.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/ibps_rrb_po_2019_notification_download.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_off0000d164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD164 5108 bytes
SHA-256: 668d0930649d13ee65b372493bd36eb0110bdab2b55f290b9035c2647bb7ba72
font_01_sfnt_off0000e2ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AC 10920 bytes
SHA-256: 4f1dc63a61407e7f62a4fda3a28fac642409cd62f61e9b76021be3cc25da36dc

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