Malicious PDF — malware analysis report

Static analysis result for SHA-256 269c0d1b23c5f9ac…

MALICIOUS

PDF

85.7 KB Created: 2020-11-11 21:58:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7048e59a92b402926ad1b6408b410dc0 SHA-1: 98cc460e00ab061139741bec318435ec36e91f77 SHA-256: 269c0d1b23c5f9ac610f8bb9aff7f7b9093b3b053f4dceaedca076d124172627
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-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/aws?utm_term=ieee+latex+template+example In PDF document text
    • https://cdn-cms.f-static.net/uploads/4417527/normal_5fa33ef604d3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410418/normal_5f9d08b376d15.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/13119319-4cc5-4cb1-be80-2497fd5bd7f1/segusamemek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/829692e2-2359-4b02-8bad-736b608c0f0c/zerupilotesinoko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b1dc19-9ddc-4e7d-9446-4d6c2b20d43e/nivasenasanuzozaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0848d8d2-68ed-4170-b57a-7e1eef288d22/23833226471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3db9420-a841-47fe-acd0-402106178056/noxiralerotoselifaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/634908b6-4419-46d8-afe8-ac22055a888a/sbcglobal.net_email_settings_outlook_2013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c80e4402-9219-4fe8-8766-f32624496f2c/xuzujos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cc94fcd-c44e-48f2-ba1a-01d9821c9f1b/rosorotug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee6e6ef5-b44d-4992-bb96-36e6ceb00e50/wejijudefebukokutaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff83af51-4051-4a44-9a1e-bc0cb2b9867e/jonituxifitunaruxeki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4898fcad-6ab5-49d9-95ff-b678404d07a8/roropar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dce7807-0013-49c8-b335-e5af186e534e/craigslist_gastonia_nc_homes_for_sale.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00011cbb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11CBB 26392 bytes
SHA-256: f71bb431ca8444663299258a9293a8b49387eb96ff458b8a57b247ba2ecc3167
font_00_sfnt_off0000e766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE766 4696 bytes
SHA-256: 77fb9c2c33997e7d8c8dbbdc6680b5ef3c898257d6bbee0916e39bd5c71e2567
font_01_sfnt_off0000f753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF753 10920 bytes
SHA-256: 80d91939831a8aeb3b909d90d2bfc604e19f88c8103b97dfb57e6415c3939d68

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