Malicious PDF — malware analysis report

Static analysis result for SHA-256 60542e48f22f8284…

MALICIOUS

PDF

49.7 KB Created: 2020-10-28 03:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 367af377523e16ec5e48654a5d5e1a8e SHA-1: 2657d1d46c934b799ee51eb816cac02d5931cdb6 SHA-256: 60542e48f22f82846b7e9774270b842e68d12260efef3b4889a52919c795c238
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=garvin+nuvi+200w In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f87b150b78f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408713/normal_5f97bdcebc6ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420587/normal_5f98b20dd4ff6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f8968a5162fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379482/normal_5f8b2217e7ef2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377112/normal_5f8ab0ee5a2f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413578/normal_5f98658fea59f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416140/normal_5f98c00e8d517.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380522/normal_5f8dddb99a1b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380228/normal_5f984d989f025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_5f952d2f47b58.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/be39be90-7f0f-4aa6-a8c7-30c139fcbe53/certified_software_quality_engineer_handbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26ce18c5-274d-4cdc-b41b-c6dce709bd2b/5378856684.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05227664-0816-4365-9910-816cd71cfb0f/xulaxiravibikez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87271da1-677b-41ae-a804-578b4e5361dc/38470407142.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/11702304517.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/d_d_5e_bard_spell_list.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/35413801838.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/1944678361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2871/1077/files/paxaxasafafuwasejodusam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/6591/4555/files/sibilisivejotofer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/8081/0140/files/harmonic_analysis_fourier_series.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 2

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_off000081b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B9 4928 bytes
SHA-256: 46b02a801cd018e47c1f3af4130fcb82c12820547dae497f114d51f1a4320193
font_01_sfnt_off000092a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A9 11564 bytes
SHA-256: b48efaff54b2b7da23526d708922ef05d6a3678bc0a3ee22b8c94b59abc7c7ac

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