Malicious PDF — malware analysis report

Static analysis result for SHA-256 e307196b335b2c48…

MALICIOUS

PDF

77.4 KB Created: 2020-12-15 07:49:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 288e041cd050c7d693d2495c7c750c95 SHA-1: 95cb3b866a3913d3ce1bab282ec67b722ad175c3 SHA-256: e307196b335b2c4890ec3e2bb45bf8bd8fd85f0e2606143ba6088eab13ae8892
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 0.9998

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/strik?utm_term=how+do+you+write+a+theme+analysis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443595/normal_5fbd20c72b396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f87391b9a360.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/12d9fd74-42da-4af5-b7ea-1c5dbe0c6b4e/the_big_bang_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96924e75-208b-4850-876c-89f2ed1e6fbd/honda_civic_automatic_to_manual_transmission_swap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c68b2b9d-f40a-43da-8939-ba9ae1bbf1a2/risibemutatevam.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/neal_dow_school.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc321a1ab79f442f238200d/t/5fc549a308845d092438a49e/1606764963846/common_phrasal_verbs_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fefb03a-ed78-446e-9b51-a843f8b96440/79651273998.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7c2676c-2ea6-4f87-915e-f4e49a22780c/mogab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/674484a9-80db-4d93-9a48-355a4da4b182/lekunesodugusepebiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50d8bfba-fc95-4dc4-9d43-8f045524f138/92074502002.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c63e2ff1-48f4-48de-bd90-50302c96b9fb/abc_family_channel_verizon_fios.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/organik_bileiklerin_adlandrlmas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39cc9d7a-c459-4698-9c88-6a23836ee9e0/wadijago.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_off0000f2d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D0 5220 bytes
SHA-256: 163ad420c4ccd487859dbd478b90ae3ee8a247845dbc6f90f7ba9606e6b43ea8
font_01_sfnt_off00010473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10473 10836 bytes
SHA-256: 58138ed5fb1e9a0e28f83f7a435b028083147fb45b85d9616c15499a787b43bd

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