Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee884af70749bc27…

MALICIOUS

PDF

85.1 KB Created: 2020-11-19 10:15:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d19225b69bb5e1ab5f72b73f2813a822 SHA-1: d9743e372299c76581e0341a6e34d60af70f571f SHA-256: ee884af70749bc27bc040992811944e32e67319c99c00449767f01f661e00f62
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 0.9997

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://gettraff.ru/123?utm_term=draw+pig+test In PDF document text
    • https://cdn-cms.f-static.net/uploads/4453100/normal_5fb5b67a1aab4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f9f0ffd31db2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374521/normal_5fa55a0c64fca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427274/normal_5f98ec0305dcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413968/normal_5f976fdcbd4ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393353/normal_5f90ff2f462f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388818/normal_5faeec9f41671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379034/normal_5fad112419a2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f8b0b9cb7ea8.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/pujinit/bollywood_new_movie_free_filmywap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a96c234-1a15-461b-82a3-de6e74119683/21201782761.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2755c17-4a00-4022-aff2-29e604049bff/80323995222.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_off00011144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11144 5048 bytes
SHA-256: 336d038714d9e1384a618be3706ba2214adc7b3b3a7fc255abb1449eff3d7790
font_01_sfnt_off00012299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12299 11056 bytes
SHA-256: 133adf55ac1c4bef2f597f579c2413fe619ef648acc577cd232bd822efffc1f0