Malicious PDF — malware analysis report

Static analysis result for SHA-256 032e3ee5ed5a1d7e…

MALICIOUS

PDF

69.0 KB Created: 2020-11-14 10:39:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 96de4164245a2ea050624636cdda7939 SHA-1: 9594400d00813a769c81b61b7c521fb11db174ff SHA-256: 032e3ee5ed5a1d7e45bebef61811098d0fbbbfda050130690e5bb96ba4fa4424
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or scam attempt. It contains a large number of external links, suggesting a link farm or redirection mechanism to malicious sites. The document body, though partially corrupted, contains metadata related to UTI prevention, likely used as a lure to encourage users to click on the embedded URLs.

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafficel.ru/123?utm_term=uti+prevention+in+long+term+care+facilities PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373998/normal_5f8e402146c2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387054/normal_5fa9a6a0d39cd.pdfIn PDF document text
    • https://wunamixexot.weebly.com/uploads/1/3/4/4/134456109/faxisija_nabom_begedi_tibopixedivo.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/bf0768bc9a84a.pdfIn PDF document text
    • https://kusuxifitumaka.weebly.com/uploads/1/3/4/5/134593182/bifetase-zexulatupu.pdfIn PDF document text
    • https://lefoxidegej.weebly.com/uploads/1/3/4/5/134526886/1847064.pdfIn PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/d63b4.pdfIn PDF document text
    • https://xuwuperozaposa.weebly.com/uploads/1/3/2/3/132303395/21483d820175.pdfIn PDF document text
    • https://nulosogitizibe.weebly.com/uploads/1/3/4/3/134317173/wugugisabaxujopoju.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/sazariwapa/94447112742.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/claim_evidence_reasoning_method.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/76843977668.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/385a822e-dd1e-495c-a399-ba0c3ed679bf/29945628101.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/indian_criminal_law_books_free_download_file.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_off0000d1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B9 5388 bytes
SHA-256: 3342c3aee1aba8f6c6e515cbb135f88066d9d49f9a41f187a5470af303f51f68
font_01_sfnt_off0000e404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE404 10156 bytes
SHA-256: 28d39800047f22fc2fde9a8d0829e82ee44b043ed33b4319b003e21553984231

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