Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e3d399a09e22456…

MALICIOUS

PDF

76.3 KB Created: 2021-03-25 16:44:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 70ce2f9d7ca43dd0ce5b19cbfd2227a1 SHA-1: 549631581fa3a8313c16ed55a64784652bd98b45 SHA-256: 5e3d399a09e22456e17e42f78fa0463041aae529d3d707108dce94e2ee330ba7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xajibur.ru/wix?keyword=las+5+mentes+del+futuro+howard+gardner+pdf PDF link annotation
    • https://cdn.sqhk.co/jaguwubax/aCggLjg/noniza.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/fichero_de_actividades_didacticas_espaol_primer_grado_primaria.pdfIn PDF document text
    • http://thecabinets.xyz/love_yourself_lyrics_bts_color_codedsylzr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404959/normal_6002742757951.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikewe/Ujwj3gj/kunemejenavutazi.pdfIn PDF document text
    • https://cdn.sqhk.co/migazajigum/1njgzhh/batopufonidofo.pdfIn PDF document text
    • https://cdn.sqhk.co/zixedagiro/ib0vFRT/kuvewigezo.pdfIn PDF document text
    • https://cdn.sqhk.co/wavoperusina/ifQLigl/31708947364.pdfIn PDF document text
    • https://cdn.sqhk.co/sovanoniwuva/jYnhaUr/peek_a_boo_surprise_eggs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491965/normal_6029e8e6eb865.pdfIn PDF document text
    • http://creamwalls.online/13363039053594ef.pdfIn PDF document text
    • http://lifeit.pro/newujujulp49c.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/4b354c3f-6a0d-43cc-85e9-2fbfc6b48da3/39748591373.pdfIn PDF document text
    • http://badamowafe.onlinewebshop.net/pa_44-180_manual.pdfIn PDF document text
    • http://gekolutewubel.myartsonline.com/nawoboresidowetikizitot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c79349c7-c2cc-4233-aa5f-db180a9d6ce4/marketing_digital_course_dublin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4616beb-2147-4f39-be7c-ad3bd47d5b02/48779109461.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bff35900-5f7f-4044-b2e3-313ea6addd62/health_and_safety_jobs_entry_level.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/freestyle_shark_classic_watch_xl.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 8

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_off0000e9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D5 5612 bytes
SHA-256: 0dcad3fc0549ed5bfaf5b5bb8049b5a9ecb96d096b50b1122de98c772dbce29b
font_01_sfnt_off0000fcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD9 11468 bytes
SHA-256: fd733984d2f124816ac6c26af70b40d6dad61945ee242ea1c1ac9ef0cc3c42d9

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