Malicious PDF — malware analysis report

Static analysis result for SHA-256 6428edb31d689bd7…

MALICIOUS

PDF

77.6 KB Created: 2021-02-24 21:52:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 092a1d30a41a2203846d785d70e69b0b SHA-1: bf820591ac640ef19edbbf0529edb1f7136de7cf SHA-256: 6428edb31d689bd7b40a32c8f0de91c5a0095f56a0c68fba38ab34e1859fdf83
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/strik?utm_term=what+is+a+good+rate+for+a+financial+advisor PDF link annotation
    • http://vigastlens.xyz/my_lg_g6_will_not_turn_onka6uo.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/94341041675.pdfIn PDF document text
    • http://itfamily.pro/telugu_bible_app_freeouz9l.pdfIn PDF document text
    • http://vofidiporalives.22web.org/40437254399.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/tascam_recorder_review.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/ligosasavivuf.pdfIn PDF document text
    • http://arevakar-travel.com/38667826959f48c.pdfIn PDF document text
    • http://noxokolozoj.iblogger.org/pidepikixaselizolajatoru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386076/normal_6005c0f3d35a1.pdfIn PDF document text
    • http://9gusevshop.space/sivotapepavo6m0uy.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/english_conversation_book_free.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/fasudikek/rozutetupak.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/enhancement_shaman_wotlk_leveling_guide.pdfIn PDF document text
    • http://gebutetivifupa.epizy.com/wosotev.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/gabax.pdfIn PDF document text
    • http://kudurefusi.epizy.com/51944217776.pdfIn PDF document text
    • http://damexodawu.epizy.com/9951376563.pdfIn PDF document text
    • http://repeputowuz.epizy.com/android_bouncycastle_gradle.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/lalepulowudijixogozuke.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_off0000f0b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B4 5356 bytes
SHA-256: 2bd3982cbf2c25d8697aea7e55d32e2bbc972bd75fc198949b38accafe22b8f7
font_01_sfnt_off000102f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F5 10992 bytes
SHA-256: 12bf2a1fff81f877b7241d28ac7576e168e7df731dd4f855345f7307adc49974

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