Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d19b2214d26d7f7…

MALICIOUS

PDF

68.2 KB Created: 2020-12-23 23:46:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: a4b8cb695aa5e0e295aebb047e5b2c29 SHA-1: 986eb5535be591add8e7f06feb9b41f840d49cf3 SHA-256: 6d19b2214d26d7f7753e6b4987fb121862c0b0bd460edef3e2d00f675f60a8d8
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://cctraff.ru/aws?utm_term=aladdin+movie+song+2019'. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

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=aladdin+movie+song+2019 In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/tipejijati.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418970/normal_5fb748710ab68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382965/normal_5fd280774c849.pdfIn PDF document text
    • https://cdn.sqhk.co/jagavibejabe/ciehf6a/78757973368.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423136/normal_5fe242ee9aca1.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/3013505.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505820/normal_5fbb5a1ec5d28.pdfIn PDF document text
    • https://wixotavu.weebly.com/uploads/1/3/4/7/134764887/28abd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391315/normal_5faf0922cb0ec.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/lonozote/abbyy_eformfiller_free.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_off0000cce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE7 5580 bytes
SHA-256: 969dcd90c460a8c917b1209d2a65b2a4c97ca0dfb59287c0bc5b0545283c9220
font_01_sfnt_off0000dfdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFDF 10864 bytes
SHA-256: 19b3ffb7f0a4ce9c07d8751f5d5b6cdeb1bcd5c8381a0a538a9eda4d51a46617