Malicious PDF — malware analysis report

Static analysis result for SHA-256 751b6fda9ab7fd47…

MALICIOUS

PDF

81.3 KB Created: 2021-04-06 01:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 66d851e7db7e9f3faf4c77cf455511b8 SHA-1: 19127c445358dee1b646d78740824a80a03707dc SHA-256: 751b6fda9ab7fd47a6d73d3bcce9f94c757f181ceea2d1c029c205115c9dc51b
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 0.9997

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://maypoin.ru/strik?utm_term=chicco+pack+and+play+mattress+size PDF link annotation
    • http://viwoxufegoger.sportsontheweb.net/rekipejemisovuwajojezido.pdfIn PDF document text
    • http://good-production9.site/que_medios_de_comunicacion_existen_en_la_actualidadoxg8t.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/jfgiMDe/mejosiku.pdfIn PDF document text
    • http://zaranes.getenjoyment.net/carcinome_hpatocellulaire.pdfIn PDF document text
    • http://fulukegoror.getenjoyment.net/5475444328.pdfIn PDF document text
    • http://xasekijig.mypressonline.com/15342590674.pdfIn PDF document text
    • http://trysoda.club/ninurum0iypz.pdfIn PDF document text
    • https://cdn.sqhk.co/kuvapipitol/ierjjBp/square_bird_game_free_download.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/39083642-b1d1-42e9-a5a6-d00389cc1428/us_craftmaster_hot_water_heater_parts.pdfIn PDF document text
    • https://354df738-7a8c-4643-bdcd-aa58f7c4bd0c.filesusr.com/ugd/69cf62_11d7c9948d474ab2aca7aaf8f469d127.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wixanarer/kozojapin.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/focus_group_discussion_topic_guide.pdfIn PDF document text
    • https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_a26d86aebdc642d0a16b897277cb1298.pdf?index=trueIn PDF document text
    • https://8cff94d3-ecab-4ea5-ad27-d3e67d02fd32.filesusr.com/ugd/2813e2_44a18caf2e1f4558a7968a9e5948313b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gavobawum/jepalobatobuloge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d81f454-5267-4011-abee-9a68ab4e1785/how_do_sorcerer_spell_slots_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be0c6e94-9bac-4604-b715-1101da542268/what_are_the_4_main_types_of_poetry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d85460f1-9934-4abe-9d38-39be7c28ba01/32447548664.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/86142956283.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/juniper_ssg5_firewall_configuration_guide.pdfIn PDF document text
    • https://8e0cabef-d481-4215-b437-8a5fc4e4723c.filesusr.com/ugd/f41140_6388f209b33f404588f8e73658e7bb0e.pdf?index=trueIn 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_off00010014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10014 5432 bytes
SHA-256: 6d0d6d356a4024c0ec8936c9a17bf849fef37911474ac8666aa691070599596f
font_01_sfnt_off0001126c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1126C 10544 bytes
SHA-256: c5810ff89fd0b64129bb5a9eb01b0a552c7943110187ce2c136bfff648c5c5e1

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