Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d80044f5b6f0e9c…

MALICIOUS

PDF

74.4 KB Created: 2021-04-08 05:44:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0c67e9fd81bc5c2875d4cc34bac0c334 SHA-1: 70a71996d92d20d5403024e92fcfb44d37a5bcac SHA-256: 7d80044f5b6f0e9ccd442fe22226fe2460421ff367d9ba41370ae2aaa0479415
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 0.9996

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://ponafet.ru/123?utm_term=happy+birthday+piano+sheet+music+letters PDF link annotation
    • http://laserisesiseno.getenjoyment.net/capteur_de_proximit_capacitif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474465/normal_605c0b31e0ee6.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/zafutenimidosama.pdfIn PDF document text
    • http://reduslim-sito.site/speakeasy_las_vegas_mob_museum13j22.pdfIn PDF document text
    • http://vazewuxu.mywebcommunity.org/air_force_entrance_exam_paper.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386836/normal_6008213774e34.pdfIn PDF document text
    • http://lbaranaydin.com/midland_walkie_talkie_gxt1000gkl8t9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488560/normal_5fe2265919eea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405194/normal_6041f58bb6515.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413373/normal_5fc9531b24c48.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/lajogepufoletezufiraronod.pdfIn PDF document text
    • http://summ-green.fun/monugezemarv3pw4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369315/normal_6057cf068163c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498983/normal_5fc61de45524c.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/lemerisinivum/psychology_class_11.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/93983445315.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/92809094326.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/josuxogulegelavefi.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/spongebob_lab_safety_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/frome_livestock_market_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/87132251556.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/what_dog_breed_has_the_best_temperament.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_off0000e5a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A8 5516 bytes
SHA-256: b6b021eeba10db8fd404c1ba6598978bd28b532cd7f31e88c02a96d0b3d2349b
font_01_sfnt_off0000f838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF838 10844 bytes
SHA-256: 9890805e6182f97dbb89c58e8170cde9322d5212b5fc7c23f9cb786a330867ec

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