Malicious PDF — malware analysis report

Static analysis result for SHA-256 516ae6061d8471fa…

MALICIOUS

PDF

81.2 KB Created: 2020-11-11 18:36:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e334dec5e8cbc55e1ff0fa55aed8497a SHA-1: 29b674d47d713e6ea06c4c54a822452614857df9 SHA-256: 516ae6061d8471fa1defd84622b63a341afe3524a1bc3e2d348798495294e8c8
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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://cctraff.ru/123?utm_term=ghost+rider+2+full+movie+in+hindi+online+play In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372101/normal_5f8a07892e05f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f9fa0548bff0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457590/normal_5faad299d67eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382408/normal_5f8c0c8111175.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/kigavanus/ascensia_contour_blood_glucose_meter_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/pa_luxury_cabin_rentals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6992fd3-8a01-470e-906c-57a72e42269c/google_sites_unblocked_games_77.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a0c7e47-e625-458d-92be-0bdf1e8210c0/new_bedford_death.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce1f5a0-7b8e-458f-a76d-f74540ba4617/grande_ford_parts_san_antonio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39710823-9fe0-45af-90b1-825d28fbd9ce/11742114517.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/14106199528.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/paper_tower_that_support_weight.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6af53d4-7c59-4a9a-b318-32afbdd4074f/42653502386.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4405d36d-e6a7-4266-81b1-38f6c7474915/coin_collecting_merit_badge.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f24d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24D 3224 bytes
SHA-256: 958cb725eab48f8c2a149aeb0ab922c7f3a9962ce1900d3fe21329f065ad2be0
font_01_sfnt_off0000fdd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD5 5608 bytes
SHA-256: 222c24a3333656f6608dc01c7be5ab24db804e7160511eac0bef1312c65bb4ca
font_02_sfnt_off000110cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110CC 11212 bytes
SHA-256: 05f012892b9420b17a9afbcf662e045cb8295eaff487e42285d3c73bf6e616f3

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