Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ae0871eace81d1a…

MALICIOUS

PDF

104.3 KB Created: 2020-11-13 00:48:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2f636b317c95176e3ab9a62d983f9c99 SHA-1: db81054be54e202110372667c095a04da03dbe82 SHA-256: 6ae0871eace81d1ab47c8116bc1149fad033de805cd4922ff8ee56594b1dc418
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/123?utm_term=wagner+ring+leitmotif+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380692/normal_5f8fb677aec7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382413/normal_5fa15ca13cd32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377414/normal_5f93ed30a5c6a.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/susopuzupure/fodifok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62175f34-51d7-49e0-9656-570900465258/wasufugazerupulojena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5592b3a4-f02b-4cb2-a6da-c683810fa291/kawojapip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d26a0a2-38e2-4260-a93e-82c011964d1a/buxojefejekafinaxopezaz.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/connectify_full_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc04eaee-7422-4bf1-9b79-861b3d5ed2eb/nikon_aculon_rangefinder_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/569def7f-1ea4-4bca-9af9-181ac6bcc17c/ikea_canopy_bed_frame.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8010522c-604f-404c-9579-f2cdf9be5e09/17436712857.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10853d28-8f43-4545-99a1-e5147a9bd814/tmr_rf985r_sony_headphone_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/lijifigobapudetuzisabe.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00014f06.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x14F06 31420 bytes
SHA-256: 3708fdcd15fe56e37302033bdc6efaafb6168b65a53c68f9c54e69348b4c84e0
font_00_sfnt_off00011913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11913 4944 bytes
SHA-256: 4fea3f36217d7b3307195de6d47669473eee1a21470e2154370a7b2c68f5ee37
font_01_sfnt_off000129ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129CE 11244 bytes
SHA-256: 9f8124ef5344a3f0140eef651d3723b65773c76fd6c5dd7b8cf5c27059760ea1
font_03_sfnt_off000185ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x185EC 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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