Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d7c7f96b7b07bf…

MALICIOUS

PDF

76.2 KB Created: 2020-11-13 16:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 76244c0b59c4611ff19bc950c796a877 SHA-1: 1805d010a034b3b3b0252df9282d448c866e36bd SHA-256: e6d7c7f96b7b07bfa3031e21da486909b2b2aa8ab4c8cba963b40cc6f840676b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/123?utm_term=bandon+dunes+yardage+book+pdf'. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffine.ru/123?utm_term=bandon+dunes+yardage+book+pdf In PDF document text
    • https://dokoxinizim.weebly.com/uploads/1/3/4/3/134305801/kudelovi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f9dd19f1acb4.pdfIn PDF document text
    • https://kegazesawatodo.weebly.com/uploads/1/3/4/3/134378031/duketopak-kufubiwopom-moxidud-burew.pdfIn PDF document text
    • https://pinoxelu.weebly.com/uploads/1/3/4/1/134108818/2717300.pdfIn PDF document text
    • https://fiselowozol.weebly.com/uploads/1/3/4/3/134366189/dedopotodunibawijixo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501198/normal_5fac55bdb761c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369788/normal_5f8e911e870a0.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://s3.amazonaws.com/banula/tatebogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8397051-ea8a-4282-9492-064e7668a3a9/19229582792.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa9a318d-8967-4bd2-b261-eed579d891a4/82048209822.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d155abe8-a629-4841-a68a-7b7d8bec1d2c/fapisagakenazezebikak.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_off0000ddd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD0 5284 bytes
SHA-256: 0d5e9b8b87f7738a1bf2a181bb885ad02cbbc5edfccaa2721c0e544ffc08aef0
font_01_sfnt_off0000efd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD2 11156 bytes
SHA-256: 64eb6b8ad256f15136c1746e2e8482ce56aa4edd1d4d064205727673598994f3
font_02_sfnt_off000115bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115BD 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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