Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5b1eb81cab7541…

MALICIOUS

PDF

82.2 KB Created: 2020-12-17 01:00:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1a63d3f0485d211d93399460c3fde31b SHA-1: 6972036958c3b699657471050f3af38b6ec61568 SHA-256: cc5b1eb81cab7541d35bd73d1f3fc3852b6b372ced5c0197df11935517fc198a
104 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. It uses an urgency-based lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/strik?utm_term=how+to+identify+murano+glass+chandelier PDF link annotation
    • https://sepetumeba.weebly.com/uploads/1/3/4/6/134601334/7000047.pdfIn PDF document text
    • https://doxazijizule.weebly.com/uploads/1/3/4/6/134640144/nubasilezarutit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367912/normal_5fbed39edfcea.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/rivemubofepif.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/08612415-e9e1-4464-9ea5-d5cf68cafd2c/8_quart_pot_with_strainer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc14b808139af037647f366/t/5fc78fc7b2fa4660c8d7e8ed/1606913991430/radio_viva_fm_104._7_en_vivo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf80c3c02f22b9dd2f99b/1606285328464/web_mail_hawaii.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea21c30a162e0c52977d/t/5fc138151972c46e3ccaaae8/1606498325962/pitch_class_numbers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc128c411f6a419848742fc/t/5fc36a7d2dd96f591859b86c/1606642301942/mars_attacks_parents_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe241e4f98375720a982a2/1606296606535/nazubigugiposudutenokuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5352bffc-4944-4cc3-b03c-573bd0582de3/58312328604.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_off0001048b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1048B 5592 bytes
SHA-256: ea840717415cdb7c320ee11f13a4a23d91409f647aa1b528a7b3514126617602
font_01_sfnt_off00011777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11777 10736 bytes
SHA-256: 66729cf5da2347ac45744cd8711e2a4c1a5249511cc6ab29ab19d553cce7ca87

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