Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e25ac3b24eb2347…

MALICIOUS

PDF

83.0 KB Created: 2021-02-11 17:00:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bd85257f44b7a49a8dab236256f92207 SHA-1: 2d1375d50956664f5fa19c6c19156fa15d31a14b SHA-256: 3e25ac3b24eb2347f4fed72fe60dec8184874c626234c19babbf5d4a9b58c69d
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 malicious domain, likely serving a phishing page or further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit vulnerabilities or trick users into visiting a malicious site.

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://baarspo.ru/wix?keyword=dragon+city+eggs+wiki PDF link annotation
    • https://famixarusefon.weebly.com/uploads/1/3/4/3/134396739/gotofesuxogexivak.pdfIn PDF document text
    • https://wudatoguji.weebly.com/uploads/1/3/4/8/134885495/10aefb8076d7bbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419430/normal_5ffb6809b3dea.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/aLQanhb/26569838911.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446782/normal_5fcb763348238.pdfIn PDF document text
    • https://rubexanow.weebly.com/uploads/1/3/5/3/135346757/gevilin-geduzomuweg-vegurazevu.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/fjeieij/doponenam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502248/normal_60226c26a016a.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/j1Kji35/platformer_maker_scratch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379732/normal_5fd60c9024671.pdfIn PDF document text
    • https://cdn.sqhk.co/mukujoripu/OsxsNib/74903208615.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496380/normal_5fcd56f95a813.pdfIn PDF document text
    • https://lubikumak.weebly.com/uploads/1/3/1/4/131453733/33129f3df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476952/normal_60080c37265aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497071/normal_6003b39f21cf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485813/normal_600d1098b9d67.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://s3.amazonaws.com/muvazi/birthday_card_template_adobe_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/xobazumutosukegizun.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_off0000fcca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCA 4980 bytes
SHA-256: 407e9289b8f46218934ba34f88fc1b4e2ddd01f607f7b6a788af5fce94fa0541
font_01_sfnt_off00010ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDD 10156 bytes
SHA-256: f3b8377c29568e79a905f564b9bc2a4fc170d4090baabe225b8a36db7177cea0
font_02_sfnt_off00013094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13094 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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