Malicious PDF — malware analysis report

Static analysis result for SHA-256 46275126443e3922…

MALICIOUS

PDF

63.6 KB Created: 2020-11-09 17:50:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 01920311b707ab94e0ba6adbd891878a SHA-1: 98dc1a9b0f0d54a2b24e5977c4b59f3f75d7e35e SHA-256: 46275126443e39223b47e1f3d16b146c803d5fe47ac4b21eeb673694f6ba2dd3
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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
  • 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?keyword=the+strand+theatre+delaware+ohio+showtimes PDF link annotation
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/pagetapulurozu.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/57ac3ddc-d611-462b-bd73-c10cbec13537/timiponarufiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ef7ea8-6157-4c56-afb1-eaa623e6568e/mawevujemonijefux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caf3bc51-6e6a-4397-a9ab-0fab86d97741/bond_strength_periodic_trend.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7bcfe54-5b6d-487a-94eb-d80e2ef6b6cf/zazuzoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/359ce0c1-daf2-4eba-b4c7-a2a05d4a4315/4106812349.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d48ca32-b9e5-4171-8517-24b0ba51db5d/keketuxip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51249102-a065-4911-98a5-184bd5226161/69601829634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/669cc086-7c6b-41a0-8b6a-49e708f934d6/information_processing_cycle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9e4a88e-48b4-48d1-976d-e3e65ff39121/water_resources_engineering_3rd_edition_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17df0053-cb25-47a9-b135-ce2b2bb91f88/mopuganibetiwuxaxeso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c304cb21-3ccd-4a75-965f-26a7c1c96339/dell_xps_18_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/dojigadetezinak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d48456b4-1b75-44d7-a7b7-593cb434bdfa/kavovofogonikiv.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8DC 5108 bytes
SHA-256: 0f55bc4c603fabca84284717f1cf170b55080344aa08d350ca43eb8e3a3fcd9e
font_01_sfnt_off0000ca1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1D 11628 bytes
SHA-256: 14ab5b7749ebe131234707946892d7a906c87ba717dc63767071cf39dd53c3d3

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