Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5fac2b125eee5f5…

MALICIOUS

PDF

61.7 KB Created: 2021-01-06 10:06:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7926de63b6a6eb5fc189053f38690be7 SHA-1: e86704064665836e1249653b27afc053788cd913 SHA-256: e5fac2b125eee5f5db9f9eff94dc2724cf247eee864b931fd4c8b6ed1c89cf86
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://traffset.ru/123?utm_term=76+unblocked+games+basketball+legends PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489977/normal_5fe22ceba723f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470218/normal_5fad30c1e7f19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387050/normal_5f9b1bb68290d.pdfIn PDF document text
    • https://nidixinaxob.weebly.com/uploads/1/3/0/7/130739699/sebupabi-sagixo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367275/normal_5fece75a683c9.pdfIn PDF document text
    • https://gusizamavuva.weebly.com/uploads/1/3/4/6/134629738/1002220.pdfIn PDF document text
    • https://cdn.sqhk.co/tubafejog/bjbSUAU/need_for_speed_most_wanted_remastered_mod_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408463/normal_5fe83ba10b3d4.pdfIn PDF document text
    • https://cdn.sqhk.co/regomesu/gji4icf/zularurozijizogofowat.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/h2hi3gf/turbo_debit_card_1800_number.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/bvhhiac/hello_neighbor_act_3_player_house.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/tutapaxi/baobab_powder_nutritional_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3d331a1-c189-42bf-9f97-e7ba48efa122/clouds_movie_dvd_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81c4c93a-be9b-4212-bbe1-d9d6253cb30b/87253741714.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/41388098558.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cc1c731-8e4b-4442-8609-57aa709f4782/bostitch_flooring_stapler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d14903e-8719-4d2d-b677-4d5fe600ab91/38992521614.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_off0000b7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B4 5508 bytes
SHA-256: a39503fd8f87fd5c1137e0c13ec51d0b0516b6dbe475d02dfda63d743f07995a
font_01_sfnt_off0000ca61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA61 9184 bytes
SHA-256: 5848751aab7b10a460367942978cfb8461375a276f51f903c97c5b6fde4af403

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