Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bb63fa27cbd188…

MALICIOUS

PDF

76.1 KB Created: 2021-03-24 18:31:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ca38e4396f0eca732e1b1594627eb4a6 SHA-1: c47ded36151bef6016f11a7c829a07b431312aa7 SHA-256: 62bb63fa27cbd188a7d194c48d14ca2a7cb0867a2f9029cf2bbb87f4e5ddbd88
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://bologen.ru/strik?utm_term=day+trading+for+dummies+2019+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388835/normal_6012552c8d3ab.pdfIn PDF document text
    • https://dafizigupiteg.weebly.com/uploads/1/3/4/4/134492389/zofuviguralu.pdfIn PDF document text
    • http://raicen.com/5182224067e9axo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449965/normal_5fcc3e38beed7.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/gezuwozilevowetizegsg37.pdfIn PDF document text
    • https://duzuvopewawufos.weebly.com/uploads/1/3/4/4/134491429/xusokipaja.pdfIn PDF document text
    • http://keepmaxi.space/tc_helicon_vocal_effects_processorxy07f.pdfIn PDF document text
    • https://gamuzajebi.weebly.com/uploads/1/3/4/4/134481120/1632995.pdfIn PDF document text
    • http://klokisik.space/86555918723gweqw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471513/normal_5ff669af2511c.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/xulepiwa/russian_alphabet_song_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/kisuradozuvevunamapudomu.pdfIn PDF document text
    • https://1a2149e7-ca7f-4e7c-a584-0e483de6f3af.filesusr.com/ugd/9219f8_a292746324274e0794b48881e8ac358c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/pibisujuze.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/69597358587.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76fa654b-362c-4e43-8527-9dcc6bd96318/what_is_the_chinese_tik_tok_song_called.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/wokaxejifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/441e34fa-0625-451d-9d93-8a8164f6a025/gizekafukawidolezuz.pdfIn PDF document text
    • https://7162f0c1-3bb2-4775-9ad2-1e34613fb889.filesusr.com/ugd/595093_aa623575648044ec9f1cac09c207642b.pdf?index=trueIn 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_off0000e7cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CB 5912 bytes
SHA-256: 2e4bf0d83e3b1e2b257fed74dd1c776f89f6c730f65e3fab134a11147666ad22
font_01_sfnt_off0000fbf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF0 11304 bytes
SHA-256: 7881045e260d7117fd20a535cb6cef742359d26d1fa77f1ba57e40e434811590

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