Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f4ef10b93ecdc3e…

MALICIOUS

PDF

81.1 KB Created: 2021-03-20 05:48:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ab2c64b9a3d342559107e3532d1b0bce SHA-1: eb964dbbf940eab879d59eac1bc0f20ecc0eae0f SHA-256: 8f4ef10b93ecdc3e510861d1aeb03d8c21b89b2988fec0d5a69978821fb7f0d3
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://jumiwimov.ru/strik?utm_term=best+penny+stocks+jan+2021 PDF link annotation
    • http://scarcebook.com/journeys_end_review_mark_kermodee2i7c.pdfIn PDF document text
    • https://cdn.sqhk.co/bugabowozi/bMajejj/wolf_appliance_repair_seattle.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_604f5db10a4e0.pdfIn PDF document text
    • https://cdn.sqhk.co/vedimofaw/hPjZvgd/cube_life_island_survival_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/munuluxel/iiNpgd1/wisunurutakod.pdfIn PDF document text
    • https://cdn.sqhk.co/dojidavos/ijfyjbH/ganike.pdfIn PDF document text
    • http://grandov.pro/aladdin_cartoon_full_movie_mp4zrb0p.pdfIn PDF document text
    • http://shop-you.xyz/12451310396ihk03.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485445/normal_5ff2cce225bdf.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/zizene/wapesafudetili.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/astroneer_gateway_engine_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/6710376100.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/aprender_ingles_dormindo.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/how_to_install_zotero_in_word.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/2010_chevy_equinox_ltz_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/34662221535.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/sajovatazowutezobuzudowi.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/zupunitavegu.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/clash_royale_quiz_all_answers.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_off0000fcbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBC 5416 bytes
SHA-256: c4994a2eec24372a822f7c2286a1a93fdc7dea4b9cafb94527ae4626beb7a19e
font_01_sfnt_off00010f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F5C 11320 bytes
SHA-256: 03ed92a7f7dfba5b1a792ef90ba05a688fd3b7dc7d2e73c63763dd7e8a0d6e97

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