Malicious PDF — malware analysis report

Static analysis result for SHA-256 34acedcdb5a47450…

MALICIOUS

PDF

69.8 KB Created: 2020-12-29 12:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 20fa97c5604317476ee843fce72913e0 SHA-1: 738c65239fd1c0a1f9ca477e7ab6aea38615797d SHA-256: 34acedcdb5a47450668bede923dba2da0b16bdecda3110987a765d0ba4496225
154 Risk Score

Malware Insights

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

The PDF contains embedded links to known malicious redirector infrastructure, specifically 'https://ggtraff.ru/123?utm_term=port+forwarding+att+uverse+router'. ML classifiers and ClamAV also flagged this file as malicious, indicating a phishing or trojan payload delivery attempt. No scripts were extracted, but the presence of malicious URLs strongly suggests the document is intended to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ggtraff.ru/123?utm_term=port+forwarding+att+uverse+router In PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/82ce14ce.pdfIn PDF document text
    • https://loseseseveru.weebly.com/uploads/1/3/0/8/130813975/viwan.pdfIn PDF document text
    • https://cdn.sqhk.co/ludibipimilu/Djgjzn0/61041952245.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzokikili/jhxPqhb/68790320158.pdfIn PDF document text
    • https://natufebopod.weebly.com/uploads/1/3/4/3/134305275/b0b7d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/95d63f9d-b52b-4e30-8062-5f761b40b556/99000416786.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/conventional_student_loan_guidelines_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e76de54e-7d7f-403b-bbe1-7f727c52c606/linear_algebra_solution_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0158c4ed-df58-4a13-bfea-e97b8ddb85a2/green_arrow_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/concepto_alimentacion_saludable.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/historical_books_of_the_bible_in_chronological_order.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_off0000d551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD551 5196 bytes
SHA-256: d251b20e7d2f5b196a09b92b43d11ada596b4a306bd742d6a74ad41eab8156b8
font_01_sfnt_off0000e72f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72F 10364 bytes
SHA-256: 9fd158baca679449861033d645c98c9782ea1688517001cf259cc11a2f3ea869

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