Malicious PDF — malware analysis report

Static analysis result for SHA-256 6041615d89bf259d…

MALICIOUS

PDF

77.6 KB Created: 2021-05-08 20:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ff410c4fd668709cd5f93a4494c72d67 SHA-1: 8597c6b36b480b20d084708ef04f58dca3e01a23 SHA-256: 6041615d89bf259da220b81f99644cb950f6eb8297c7be9aad60d1bbbe7e419f
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=how+do+i+program+my+rca+remote+to+my+sony+dvd+player In PDF document text
    • https://widafesisitix.weebly.com/uploads/1/3/5/3/135321065/12652bd515.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475382/normal_5ff0f26cbfc7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420917/normal_5fdc6e40b8599.pdfIn PDF document text
    • https://dalosetog.weebly.com/uploads/1/3/1/4/131412235/nefixajimokis-jigetexid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385437/normal_5fcf3d9837b92.pdfIn PDF document text
    • http://takaweri.mywebcommunity.org/6670769034.pdfIn PDF document text
    • http://nufivuzelikonax.getenjoyment.net/momentum_strategy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454051/normal_5fe52dbc2694f.pdfIn PDF document text
    • http://leledup.mypressonline.com/lemefumokizuwiseli.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500199/normal_5ff1cd7af18e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463788/normal_60030fb13f57c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387589/normal_6004765c95390.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464710/normal_6046772c430ea.pdfIn PDF document text
    • https://xesusufekab.weebly.com/uploads/1/3/4/8/134864027/kekajox_gakaweje_rogixu_guzizud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500668/normal_603e50d5389ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463275/normal_6049684e526e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lawosavamog.rf.gd/aws_amazon_web_services_tutorial_the_ultimate_beginners_guide.pdfIn PDF document text
    • http://gozenabuzixi.onlinewebshop.net/is_jbl_flip_3_se_waterproof.pdfIn PDF document text
    • https://ba85394b-11ac-4ca4-926b-74ca936c52e1.filesusr.com/ugd/5ccfc8_40055782b98f4dcb935963f36a356a26.pdf?index=trueIn PDF document text
    • http://kaxuwenewutexu.myartsonline.com/6155326861.pdfIn PDF document text
    • http://mepirolete.rf.gd/what_are_excellent_written_and_verbal_communication_skills.pdfIn PDF document text
    • http://jojogamuniwewiw.epizy.com/32998345748.pdfIn PDF document text
    • https://1ee34b3e-bfcb-4e25-b227-79ffd44eef10.filesusr.com/ugd/9d5096_bdcb319c53404d1d8f678915b1cc1c7c.pdf?index=trueIn PDF document text
    • https://0879403c-3be5-48e4-925f-21334a7d5cfe.filesusr.com/ugd/407fcc_a325cbbedc6e442aa7e5a1817252963b.pdf?index=trueIn PDF document text
    • http://govodotogogot.epizy.com/3892400020.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_off0000f092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF092 5608 bytes
SHA-256: 74f9cc2c21f0b600f037f8015743da104a4f848e2650d04c2dba7dd4f4a65529
font_01_sfnt_off000103a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A7 10628 bytes
SHA-256: b979557e3b3f66fa34141feb66fcd926c7471b191434bcea22381e8a5e1fdad4

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