Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e97ea5b91222bfb…

MALICIOUS

PDF

86.2 KB Created: 2021-05-05 11:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 17abd2f8e82397af2fc9613fc0bc2c42 SHA-1: 97582ae21a8dcaf7c4e1652fd67f4e7b67aaeb48 SHA-256: 5e97ea5b91222bfb3e01301d34f0a0e51550e2f41bc6211cfacd837ddef7350a
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 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/strik?utm_term=nintendo+ds+lite+ladekabel+gamestop PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369765/normal_600a2409455fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460968/normal_606c7b123bf80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483075/normal_6068c09752a37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403260/normal_5fd108f9aa242.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470687/normal_6069758c1c84b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486984/normal_5fd9079ec9a8e.pdfIn PDF document text
    • https://vejiledulibona.weebly.com/uploads/1/3/4/3/134318828/gawaputobijozeripo.pdfIn PDF document text
    • https://ronabamipiboti.weebly.com/uploads/1/3/4/5/134598089/tularuvejevadorux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366034/normal_602a810026bca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/chained_tamil_dubbed_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1c6578-fc58-412d-bcef-699c21202b06/how_much_is_self_service_printing_at_fedex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6912e941-665e-4417-a709-35c5efcf2b75/43741327157.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/luzitiso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c54b988-e72a-4dfd-97d1-1df5b2f6edc1/kivakimoroderivolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3091bb08-5a25-44a8-a1ba-74a31a0470af/how_do_you_clean_a_bionaire_fan.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/79397936295.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b00492f-8989-4fcf-8f17-9329acf567ca/82555469128.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/shading_fractions_worksheet_ks2.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/o_que__uma_reviso_bibliogrfica.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF458 2912 bytes
SHA-256: 1baa3efd180cf5f44d613abe34ea0380c2d25dd221f4ef864ac418d56f73cc35
font_01_sfnt_off0000feb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB4 5144 bytes
SHA-256: e903625759a846997b94e593662067f83e81779d55028c5481bf41474adbff8d
font_02_sfnt_off0001101b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1101B 13448 bytes
SHA-256: da001c511e5ce9c8a3fea9b613adf7cd3036a09be863206e01bc29a4b81b957d
font_03_sfnt_off00013ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AD6 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.