Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd2105e40cb86520…

MALICIOUS

PDF

78.2 KB Created: 2021-05-02 03:23:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d359da0b5e40a6dd1e3666635c0daf44 SHA-1: 899f4da3f1cd2240c09e4ce3e9907df14003867c SHA-256: fd2105e40cb8652064deb6f66534560ea87428a98d3731694fe949238ca0d321
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://druttle.ru/strik?utm_term=eventide+timefactor+presets+worship PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427080/normal_600a491910c78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405197/normal_5ff890cd3ecc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459478/normal_602d9c64a7d87.pdfIn PDF document text
    • http://lunagogafoxoj.sportsontheweb.net/vijexokovamuvute.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471479/normal_5ffdd244554ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410207/normal_602edda5609ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423155/normal_6069d1713d8ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481164/normal_6003ba028d013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462694/normal_601264397f59d.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/41150734181.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390350/normal_5fe5d92c0ba92.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/5bfdbf51-2679-4b6e-a5e1-51f6880cbecd/91449140669.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/what_is_the_meaning_of_female_pimples_on_back.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/af_quarterly_1999.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a400eae-2801-48af-ada8-e2fbb0dd7d91/vobemeribuwikoriviwuvad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35b6d914-c70b-4b40-9f97-10a1a8c691b8/good_argumentative_essay_topics_for_5th_graders.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/as_melhores_de_chagas_sobrinho.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2285e9f8-7ac2-4f72-a140-e6053e4e7e10/53612567902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56c6ce7f-e48e-40c0-874c-3b6915883030/what_is_the_setting_of_ap.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF383 5472 bytes
SHA-256: a33fd35cd97822977ae5ed55be0052544676b05fb7fdfa3bab6273e6ed68e826
font_01_sfnt_off00010611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10611 10892 bytes
SHA-256: d759fa848fa43468d4a94c7bd567f755ac26dd3ee9e34e09dfff82291e42c6db

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