Malicious PDF — malware analysis report

Static analysis result for SHA-256 94fda11d28f71cce…

MALICIOUS

PDF

74.5 KB Created: 2021-04-05 16:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b98afba6c661328dd4e0b6e320ace432 SHA-1: 1c4b9402cac6772e6316d5952b8d846e6cd758f6 SHA-256: 94fda11d28f71cce5d8b925bf435ed2784a4edb6ffd4f64cd1c47ff0c8c6cd55
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://baarspo.ru/aws?utm_term=can+you+sue+for+defamation+of+character+in+florida PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501993/normal_5fe875d631ab7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375095/normal_6052e410544ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493597/normal_60622ab7ea3b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376621/normal_5fe8783788cc7.pdfIn PDF document text
    • http://nosilekexiwot.mywebcommunity.org/ap_polycet_2020_model_papers.pdfIn PDF document text
    • http://mebovaduzi.mywebcommunity.org/amazon_services_business_solutions_agreement.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387938/normal_5fe154ab8e245.pdfIn PDF document text
    • http://peteferix.mypressonline.com/batejotekawawavusa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393361/normal_605c959b6d3aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405642/normal_605c22b1c95a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366344/normal_5fe4abb06ea13.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/nuxulikiwab/kazusejezizinafulib.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/69969848533.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/52454510482.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdd2b8be-9d99-4bef-b885-34b9194339a9/pioneer_vsx_530_k.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/airline_tycoon_deluxe_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/27169491655.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/warurexenufugukamenepalu.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/40771257616.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/5282203700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30dcbc0e-e546-4d57-b097-711ab3b87845/convert_fortnight_to_monthly.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_off0000e595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE595 5268 bytes
SHA-256: f3e40720be6a6e9d1e2623b21a4d4579f8524e35773b917de8d441a8976b8854
font_01_sfnt_off0000f75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75B 10792 bytes
SHA-256: aef4b4bfa93d8ba19a5dabe2fd2da5cca945f263e849c49816887d5473ccd4a1

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