Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cab17af07ff796e…

MALICIOUS

PDF

79.3 KB Created: 2021-03-18 06:07:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 53b98b3c1629ec46f1610b2faa6f30cc SHA-1: be5c102594658180f16db51bfea09cc03137571c SHA-256: 8cab17af07ff796e662fe1bd92c0c78ef327b6954e9533a95c1ea05027fcafc6
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://crophysi.ru/strik?utm_term=lenovo+thinkpad+t430+i7+technische+daten PDF link annotation
    • http://lowufadit.scienceontheweb.net/84801156208.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455670/normal_6008a3b83e779.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413240/normal_60090c91576a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467007/normal_5fd3422381362.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466161/normal_5fe1082f93d48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407062/normal_5ffe4df3244fb.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/84045861733.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424024/normal_601f318ec5286.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368240/normal_6007a1d20363a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481831/normal_5fcdd0a128f01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476569/normal_5ffd1ad7d96f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413016/normal_5fd7b865aaded.pdfIn PDF document text
    • http://zutolewe.mywebcommunity.org/zubisixedederapit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444096/normal_5fd66eb5e0f2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laxilajolagavaj.rf.gd/fufakizudirivav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaa57f98-33be-4d35-9551-f7895b6b887c/the_martian_hindi_dubbed_movie_download_tamilrockers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8d99402-8bce-41cc-8e78-53af49898480/what_are_the_stages_of_mitosis_in_biology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dd7d9a6-6c65-4fa0-96db-fb5223450719/business_ethics_concepts_and_cases_7th_edition_ebook.pdfIn PDF document text
    • http://xizajitidug.rf.gd/viwukujafuvogozopiravi.pdfIn PDF document text
    • http://nefijojutofad.rf.gd/veposobenubex.pdfIn PDF document text
    • http://zogoxuf.atwebpages.com/tim_ferriss_net_worth_forbes.pdfIn PDF document text
    • http://mebolunene.rf.gd/13311222699.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52229c19-86f4-4b75-bae4-cc5ca1165a9b/kanoleporudajemiwun.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_off0000f48f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48F 5572 bytes
SHA-256: 3a8b7e4182da3fec939b7e6c054e42e8fb17eec53d25d72510f73ad304e76250
font_01_sfnt_off0001079c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1079C 11536 bytes
SHA-256: 4c5e913fc2e4de7be9810f765593502a578f22f888e0a27fe30402d7691d8af1

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