Malicious PDF — malware analysis report

Static analysis result for SHA-256 32514d3009d3980b…

MALICIOUS

PDF

73.4 KB Created: 2020-11-25 18:34:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0c4fb182bbed94b6634f40702ead15fe SHA-1: b02274d26c439ea253698842b617aeffe086e10e SHA-256: 32514d3009d3980b2fe2d84a125a38e2e7b3e24c4f8dd3b5e98e24334da6b9cd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

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
  • 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://trafftec.ru/strik?utm_term=off+white+ikea+rug+dimensions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375361/normal_5f9df8a9e6c1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368222/normal_5f87c2b03f842.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415331/normal_5fad9b0f57ad5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369146/normal_5f94b20111274.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389816/normal_5f9101a2b3dfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459467/normal_5fada80ff423c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/33255228-c00a-4e13-a06d-3fdcf3b4e0f4/54345246176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16f13bb8-6fd6-4538-b730-666290f69f4c/rififuk.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/30766640915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bbb6123-b994-4ed8-9daf-eae101a769c7/domolozegikegirimeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48da735d-9c39-4ac4-a42b-4c7d66630aee/72114162128.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa83ff3e-d546-49c9-ba30-947ea71e264e/warppls_5.0_free_download.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_off0000d15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15B 5352 bytes
SHA-256: 36b3632872a92bf5a52061455b6aa6fc5eed6681be8e7496a540ef766f92f159
font_01_sfnt_off0000e380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE380 11816 bytes
SHA-256: b868740c16b8f400fc01940829be260b7adc6491424a40b7a0cfece171ff403b
font_02_sfnt_off00010ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE2 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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