Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b0170bc712cd9e…

MALICIOUS

PDF

76.0 KB Created: 2020-12-16 18:59:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fa52f51d1297f0f77663da87187b11f3 SHA-1: e595eb20e2e8a006d2f8b806eabd02ae99f2c768 SHA-256: 06b0170bc712cd9e7f828412e05d0bf2af2efe1a9d3a12e3c652b672b8950544
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended to host a phishing page or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?utm_term=rubaiyat+of+omar+khayyam+english+pdf PDF link annotation
    • https://gakuzelidojipo.weebly.com/uploads/1/3/4/3/134395763/favugotisowaweluxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403560/normal_5fc16ff3694b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369503/normal_5fb4b57024b22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474978/normal_5fc671bd5bd22.pdfIn PDF document text
    • https://kutemipemowu.weebly.com/uploads/1/3/4/8/134860595/mejovosorifex-satipilalikidod-difefe-guseridowojurix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_5fc23e96ebaab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478133/normal_5fc1fee27c288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419849/normal_5fa78d776c313.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/06cdb424-b587-4ae9-a7c8-13d7481674a5/lewis_structure_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5df6eac-6544-453f-a6bc-1c5c3f3aaead/graber_outback_bike_rack_reviews.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2e360883ed11e39cb75a/1606233655768/41057605867.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/bucharest_tourism_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/reenacted_budget_guidelines.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56499e5c7695ca9b994de/t/5fd67e88dca221526046315c/1607892617430/shiva_cartoon_video_mp4_3gp.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_off0000ec7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7B 5768 bytes
SHA-256: 39ff7bba58bc25b4caabeb269f0f565b11fc06d737f63a628bc5e79e80c40702
font_01_sfnt_off00010004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10004 10276 bytes
SHA-256: a04362317de00f023f023c692f684c74f7a2ce424ddcbffeaefee8e69416bb63

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