Malicious PDF — malware analysis report

Static analysis result for SHA-256 380ef66b87651df5…

MALICIOUS

PDF

69.6 KB Created: 2021-03-10 07:47:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 99d8f54d49f7db9176674d1ec4db4ffa SHA-1: 5163a660b8a02660e235f0bfb3104df83d4f1362 SHA-256: 380ef66b87651df5917a44715961d41412e0c98ad5af1816c105eedd195e7d0c
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing indicating it is a phishing lure using an SEO redirector. The embedded URL, https://soxebez.ru/award?keyword=test+de+raven+abreviado+pdf, is identified as the primary malicious indicator. While no scripts were explicitly extracted, the PDF structure and the nature of the URL suggest a phishing attempt to trick users into visiting a malicious website.

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://soxebez.ru/award?keyword=test+de+raven+abreviado+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470703/normal_5ff62b6fdff27.pdfIn PDF document text
    • http://basumoxivor.sportsontheweb.net/how_to_make_a_warm_mist_humidifier.pdfIn PDF document text
    • http://badodamibevije.iblogger.org/hp_photosmart_c4580_network_setup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386076/normal_5fc88887f1d40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413121/normal_5ff1443798072.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380522/normal_601b453b9fa13.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/kovufadubetigipudow.pdfIn PDF document text
    • http://miwusox.rf.gd/gozirasafebijusijosij.pdfIn PDF document text
    • https://b5526579-b22d-45a0-8251-9885a72cf3eb.filesusr.com/ugd/0cd019_5ceeb379053145d49a87b3bbd4faf5f2.pdf?index=trueIn PDF document text
    • https://37976aa0-f55f-47d3-847a-8d185b13ebf6.filesusr.com/ugd/1d6212_364e4a62b7c147edb739f5692aa2f820.pdf?index=trueIn PDF document text
    • https://b40f07b9-a98f-42b6-a6e2-5dc2c82ebb0e.filesusr.com/ugd/e949ea_bcd3bfcf359a49cebec119d410bba427.pdf?index=trueIn PDF document text
    • http://xikusaduxofi.atwebpages.com/vinuden.pdfIn PDF document text
    • https://0e67983c-e844-40c9-b604-97311ec94efe.filesusr.com/ugd/6e13d9_1ef053ffc19343b88d7c37ddd1fa881e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bezorito/bairnsdale_secondary_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/gulafot.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/fetoju.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/battery_doctor_apk_for_android.pdfIn PDF document text
    • http://wojibikifi.myartsonline.com/kidde_smoke_and_carbon_monoxide_alarm_battery.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_off0000d513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD513 5152 bytes
SHA-256: 4fdaa7658bd41c018dd56bc10100bde99b62bf193da5ae0945e4314ba4aa1f44
font_01_sfnt_off0000e6a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A4 10240 bytes
SHA-256: 568bc8c40ad92c676db65edd6f907ab35fadf367953848901ad174bbbc512ae6

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