Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecde47c9b4374d75…

MALICIOUS

PDF

75.7 KB Created: 2020-12-26 02:16:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 8539c65047a4c9f6cb62f6ad21708bb3 SHA-1: f25f621b6d40566bea4a78d4e9abea521194f08a SHA-256: ecde47c9b4374d7535702bbafda59995d553a2cd8c427f4ffb31e6c0b41aa3e6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or malware delivery 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://trafficel.ru/aws?utm_term=annemarie+schimmel+books+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386366/normal_5fd8614a3b4bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474448/normal_5fe097ab31a2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384836/normal_5f8c53a4a6aa9.pdfIn PDF document text
    • https://rozujefugupag.weebly.com/uploads/1/3/4/0/134017035/befamudevavif_nakorixoziza_zojaduzosup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473926/normal_5fadbf5923036.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5fbcccca6c707.pdfIn PDF document text
    • https://tevunuxewime.weebly.com/uploads/1/3/1/4/131452804/2585563.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_5fadeb9de4aed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467306/normal_5fdf82922853b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411219/normal_5f9995f89cbac.pdfIn PDF document text
    • https://cdn.sqhk.co/nutakurij/diegejg/carpenter_ant_nest_removal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fafde08b90d7.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/9351f8aa-d279-4bc1-b175-4615fd91df3b/2108144824.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f15cd551-e9ff-41eb-8d69-61289da775f7/51817104023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36530730-a680-4a62-9ae2-5b5c0ad91d66/bilalawekunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bb92701-ceb5-469c-b608-cd1a34f22fa8/86553085155.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_off0000e9c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C9 5588 bytes
SHA-256: 183752385967d9af5079abe68e52643980615d3a082ceca27292ee1cce79409c
font_01_sfnt_off0000fc94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC94 11368 bytes
SHA-256: 2ec7b7181bed65ab2333310c687c814a779303220ce11f79b3881b0bfb5a28e8

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