Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1f8174b4fd75ea…

MALICIOUS

PDF

79.0 KB Created: 2021-03-17 16:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d42036ac4c3111705ffc6b676896ee99 SHA-1: 09f40d816234fa2fb9d40bcdc1fa72c8b5bbad09 SHA-256: 5c1f8174b4fd75eae1f68f3dfb516197b100fa69d33e444c4f1177fa8b1fd65f
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-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://golowaki.ru/strik?utm_term=sq8+mini+dv+camera+1080p+full+hd+manual PDF link annotation
    • https://cdn.sqhk.co/gitovera/e4Kiahh/tavevulodape.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/7ZwggzT/xiremukekugezatotojel.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/aisgdRT/oneplus_7_latest_news.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/jgif5aD/gimasubinokilif.pdfIn PDF document text
    • https://cdn.sqhk.co/jagapifa/jgifhcC/easy_thai_red_curry_recipe_with_paste.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://275320ff-96dd-455a-9699-a0fdc58b27a5.filesusr.com/ugd/943725_58e1f1c3d89d45c1be1c724622ef8e91.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/00f659a7-3a72-4b71-a14e-2e1b23bdf492/xadozutitevitavi.pdfIn PDF document text
    • https://4c6480a9-ccec-4c20-853c-cc48681c44ad.filesusr.com/ugd/935adc_2691eca36adf478282718bf097192bea.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/eabe987d-1f48-4622-bf6b-658878c61831/71241269247.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/535ed6bc-1054-48db-b7f5-e56c997542a1/57911097577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16dc5b33-33f7-4c79-bf40-2d6e928be261/bipepevekotuminiw.pdfIn PDF document text
    • https://ac614e2c-2e00-43e4-a80f-2c6bce9fb64b.filesusr.com/ugd/f103bb_f01a312943d241e1bde1e2814194acac.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d804b4a-8d50-458a-9d27-8b5784446665/how_to_make_origami_out_of_square_paper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcca9746-2a12-472c-a71d-7a97ea519a8b/gisijofufu.pdfIn PDF document text
    • https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_66d14b3366f94addab6f7c614d383dcb.pdf?index=trueIn PDF document text
    • https://2eda13a9-9e0f-47dd-bbfa-a9a5028a3314.filesusr.com/ugd/61c57f_8c626fca8bb749f887bf8c2444d0921e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ce49a42-4aff-4c25-82e6-ffa7612a1ebd/how_to_reprogram_a_harbor_breeze_fan_remote.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_off0000f336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF336 5896 bytes
SHA-256: c71b3c67a8e994859b4b2cdd6dee1e0da32daf9135b7fba836609dd415764212
font_01_sfnt_off00010726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10726 11612 bytes
SHA-256: ac00ee114536fac746940d776b4c861da900c3ee8eb73859ca3ffb85c5fcb39d

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