Malicious PDF — malware analysis report

Static analysis result for SHA-256 915276efb9671f87…

MALICIOUS

PDF

90.7 KB Created: 2021-05-23 23:16:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 58704d2e825aa51b916f45719a69bc8c SHA-1: dd3be46a450f10fba406ff301d22aaaf89af2eac SHA-256: 915276efb9671f87207f948a94e04e985de384575752ada368a9d6f93aa7886d
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 0.9994

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://vilenefex.ru/strik?utm_term=metabolic+typing+diet+book+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4469104/normal_6022d569af1cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366344/normal_5fe4acb0b9d46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475380/normal_606e94c5e9744.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381748/normal_603c7947c550a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_601e43301148d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403689/normal_60250e7b82039.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405186/normal_60623bac21284.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490376/normal_60240353b6866.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412902/normal_5ff3c1d0c1f80.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/8d3b6177-b415-4b65-b66f-58aee6017750/17010496591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52660543-e58e-4f84-bbe6-fff744cf876d/roland_td-4_e-drum_set.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/reparuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b62e9dcb-2b2c-4d9a-bf11-4afca4f43bea/2695473609.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95d964e8-950f-412b-8066-c8f139ed1659/11254864088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/621915ce-2c62-46c0-b8d0-c77c7bbd6e15/how_does_globalization_affect_the_environment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54d2c298-21e9-4f6a-ba89-a6e7064d8981/77148095583.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/772eb63a-a18f-483b-b5d7-5dc7b6accc8c/math_logic_puzzles_printable_high_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f224681-6d30-4a4f-9928-206aef3804e2/17118155902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3574e63-c086-441a-b401-8445cd3d090f/93732776578.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/dr_wayne_dyer_tao_te_ching.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/rca_rtd317w_remote_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/fufipifupifimiruxawiwi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C8C 5548 bytes
SHA-256: 7ab7080883c4fd14170b77bfa08d83f16a27d95a2ab8f8598ad7e262dfe016d6
font_01_sfnt_off00011fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FA9 11808 bytes
SHA-256: f7881214c40417233c30c0234e7ced39e2ce37531636205984f332bd58e339de
font_02_sfnt_off00014808.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14808 16060 bytes
SHA-256: 2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90

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