Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ab922f3ae4d9ff…

MALICIOUS

PDF

70.4 KB Created: 2021-04-03 03:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5e774de6348d865666a8fc19a70d49af SHA-1: d598fbebdd941f899c81ed78b6375ee36ccb7238 SHA-256: 58ab922f3ae4d9ffc6fada700e7573bd944847aa61c2f69348fa9864f4427aa8
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/strik?utm_term=how+to+use+a+jetted+bathtub PDF link annotation
    • https://cdn.sqhk.co/ronofumito/jh3Xdii/43610403100.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/7OnozlP/mod_maker_for_minecraft_pe_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/bjgLu9C/69305018147.pdfIn PDF document text
    • https://cdn.sqhk.co/femolilepob/hhgiFml/spiderwick_chronicles_2.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/ajjihfJ/popular_tech_news_site_nyt_crossword.pdfIn PDF document text
    • https://cdn.sqhk.co/dojagomudek/igjG6hh/29321342868.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/0wULiey/80723453283.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nojerodupojelaw.rf.gd/13305841206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a859768f-596d-474e-8904-cf02b3a01ee0/vodaxopamosewemexekor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf5f29cb-6d66-4b55-81e0-3c836bbd2a03/nanobo.pdfIn PDF document text
    • http://jesogini.rf.gd/emcee_guide_script_for_christmas_party.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/753418e0-9774-4bae-86f5-52ca37ba54a5/identidades_trigonometricas_formulas_fundamentales.pdfIn PDF document text
    • http://tisimutugixaji.rf.gd/55309996299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d38b26db-bda7-465c-a238-10f799b9a8ad/staples_shredder_spl-bxc152a_wont_turn_on.pdfIn PDF document text
    • http://ruxuwidoke.epizy.com/32724816533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3ddcbe1-ac4e-4387-98ff-da7b47ecf3f7/panasonic_telephone_headset_jack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe317c49-4429-46f9-972c-6de6cfb716f2/51841104139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD797 5052 bytes
SHA-256: 974b1e2b174c3eedbc8085102f962aa658a3fcd562456ddbef169c3fcdef2502
font_01_sfnt_off0000e8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D1 10556 bytes
SHA-256: fb954641a7fa8d7d1ea7e413a73c0cd3acf37bc84f4e3439ef929065f1dd077e

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