Malicious PDF — malware analysis report

Static analysis result for SHA-256 59d5509daf19860b…

MALICIOUS

PDF

81.0 KB Created: 2021-01-13 00:10:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 20f43590464c4ebbf597a840e941b3b7 SHA-1: d15c3c0ea32e6428555e3595cd7552c2033b1f90 SHA-256: 59d5509daf19860b6627cf67f5d48180d8973e6942a994079e5f290aa3e34b04
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI suggest 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
  • 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/123?utm_term=video+star+android+apk+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4455890/normal_5fc78de21a70b.pdfIn PDF document text
    • https://site-1175847.mozfiles.com/files/1175847/benezema.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f8713bf7ac4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482880/normal_5fe4e5541ba73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366382/normal_5fe5d871bad7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450039/normal_5fb32c4a11200.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/genukopapovixo/28588210327.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/501_algebra_questions_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/11938682489.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/rikenagofojel.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/super_number_1_kapaa.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE976 5224 bytes
SHA-256: c4b7f05c9b509a76c85ed90c1a3b254355dc3514116f4b0e0348a808a995ac90
font_01_sfnt_off0000fb4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4D 11372 bytes
SHA-256: 82acac64fc250967674dd007c830be3da62e1565e886d75dbd510184f09e0389
font_02_sfnt_off0001223f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1223F 16064 bytes
SHA-256: 1398bbf2dfd9cae4409d1d8ab67a79f495e147aa07cce54436be1c2862721d78