Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3e0b21349752a5…

MALICIOUS

PDF

49.6 KB Created: 2020-12-24 12:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1fdbb98345888beaa2e2effe5ec98009 SHA-1: 5536524d36691af972d83ff1b2e8062faf286613 SHA-256: 3d3e0b21349752a5fd3b206294557eb0ba8e0758da0f6ff488383a3be88f362d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM' pattern. The primary malicious URL identified is 'https://traffset.ru/aws?utm_term=christmas+festival+clarinet+sheet+music'. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to redirect the user to a malicious site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7011

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/aws?utm_term=christmas+festival+clarinet+sheet+music PDF link annotation
    • https://rifijilaguselud.weebly.com/uploads/1/3/4/8/134846829/7e3e23e9c.pdfIn PDF document text
    • https://cdn.sqhk.co/javufikari/RQiCCOx/siren_head_vs_cartoon_cat_rap_battle_reaction.pdfIn PDF document text
    • https://mogugadikawes.weebly.com/uploads/1/3/4/0/134096191/1876894.pdfIn PDF document text
    • https://cdn.sqhk.co/nugutobudan/cifjjid/nasa_solar_observer.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/epic_hero_definition_in_literature.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/armitron_pro_sport_instruction_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/908794d2-b682-417d-bdd7-e8d07db417c7/Beschwerdeverfahren_wegen_unlauterer.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/zero_conditionals_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52aa4b07-5872-4d0d-8e55-89d1904100eb/zerosifubov.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/kurugobadimewemodir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b17a8d52-8b93-4c3d-af21-f6a9b127f2b1/nvidia_quadro_k600_gaming.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/584c6075-cba3-4b56-ae96-0c72f279a9dd/dedexoxav.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/thyristor_family_devices_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b32f4729-4833-4eb9-badf-81c3851183c5/jeketo.pdfIn PDF document text

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