Malicious PDF — malware analysis report

Static analysis result for SHA-256 2620fd087fadb123…

MALICIOUS

PDF

77.2 KB Created: 2020-12-27 02:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2f507cb13f8f611346d882b32cb4e3a3 SHA-1: 29d5a8f7277accc45f2543ff08e171d0b8d528ea SHA-256: 2620fd087fadb123d3d8d98bda57b237565e3810a277e531e4c0aba5fac42cbb
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains a link disguised as a download for 'Nier automata mod performance', which redirects to a malicious URL. This indicates a phishing attempt to lure users into downloading further malware. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/aws?utm_term=nier+automata+mod+performance In PDF document text
    • https://static.s123-cdn-static.com/uploads/4417118/normal_5fcaf48698c30.pdfIn PDF document text
    • https://cdn.sqhk.co/lawafopugu/OgdjdKq/83324666746.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377112/normal_5fab6f6667f92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469623/normal_5fe5755e215eb.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/nonabafat/kuxeleganane.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/inorganic_chemistry_book_for_neet.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/zajujufolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db3df31f-ce11-4cc3-ace2-57b34775ba9e/27734169739.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23413278-7bd7-4c0a-9441-9c7532d3f480/lidaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89564830-d54c-418b-80da-c6190b92176f/vsepr_model_and_molecular_shape_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8028cbc9-2a02-4632-8495-897f2b69b623/pibusomomaganebaw.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/calibre_android_version.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/middle_earth_rangers_of_the_north.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_off0000f364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF364 5060 bytes
SHA-256: a7e5d1b5fecec7a875e4e99973b48745ba94c69ce125655e754b6a9ef14e7547
font_01_sfnt_off00010490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10490 10376 bytes
SHA-256: 1a1ac6f71d0d8684fc5c57630f1af9c1a6781791fa44a570b9dbfef5fedb3f0e

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