Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b945c6233655c1…

MALICIOUS

PDF

60.6 KB Created: 2020-11-20 13:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f90507f22f765ee5d92f62c34787b00c SHA-1: 5383ebc67829cef3429c6f53c6074c0e5a9aed3d SHA-256: e3b945c6233655c16b4d0b1b34838dd89eadd3f9e1461a2606df7d9eedac45b9
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 0.9996

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://gettraff.ru/strik?utm_term=jumpers+for+goalposts+2 In PDF document text
    • https://zarurirabug.weebly.com/uploads/1/3/4/3/134355130/burovuw-ronimokovok-jevoziz.pdfIn PDF document text
    • https://zewubonorow.weebly.com/uploads/1/3/1/3/131398185/a7410c1fef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371244/normal_5f95c2331b507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366654/normal_5f883520c02db.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/b42ffd66-3d49-4722-a118-24b43e660e81/72020693206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/791c020f-e9d3-43fb-8044-a05ffa633e7f/63677888305.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/13747531399.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/rabosero.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/48667579818.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/bard_of_blood_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/lesivadugudawuwosevomuk.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/mojab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c212379-ad77-408b-9bae-3b343f3f1e4a/vofinubutoxavizamewuvaguf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea994b33-23ec-4187-8db5-30effdacfcd2/15035616708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f43fbef4-594e-49b9-be27-1cbb6e2bf7e0/travis_county_hot_check_warrant_search.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b0f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0F2 5340 bytes
SHA-256: a9087510afe2a81fe7220cc88e6cc5f31392a8b0e6563270dc6eb256596f8662
font_01_sfnt_off0000c304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC304 10096 bytes
SHA-256: 45685ed700ce6e74fdbb22efa66db9128d9842c26fbb10a8c92dad19599101d9

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