Malicious PDF — malware analysis report

Static analysis result for SHA-256 c85620ff674dbb65…

MALICIOUS

PDF

88.6 KB Created: 2021-02-24 02:57:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4506a215157a73424dcbc9007069ff14 SHA-1: ed1c994973a8216c29642842efcbec4f49ac1d4e SHA-256: c85620ff674dbb65416cf7129ee563e2ec6896670656151cd32f6ebed100f436
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 0.9996

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
  • 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+to+program+a+traxxas+vxl-3s+esc In PDF document text
    • https://static.s123-cdn-static.com/uploads/4490250/normal_5ffa7a9752492.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_602afda35b0b7.pdfIn PDF document text
    • http://shoop-fm.ru/graphing_inequalities_practice_worksheet_answer_key17rap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409246/normal_5fca74dbe4127.pdfIn PDF document text
    • http://8bitbeardsco.com/mivutigefatidelir5tph3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495269/normal_5ffe7f25307b1.pdfIn PDF document text
    • http://lovelyhouse.online/free_video_collage_maker_app_androidnckxn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465690/normal_6025372ecb535.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380528/normal_60120cf7470f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493891/normal_6007bf00b5833.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494138/normal_5fe0cd92cec6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5fe9e7200ebbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391649/normal_5fe8fc9134468.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457849/normal_6013b564e91f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475570/normal_5ffa729082d41.pdfIn PDF document text
    • http://upgrade4me.com/9659070245702xjv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371248/normal_5ffadb9b5f0d0.pdfIn PDF document text
    • http://difavusimope.iblogger.org/camera_fv_5_crack.pdfIn PDF document text
    • http://fofikotopavabe.iblogger.org/fuel_cell_technology_market_report_2017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lusafawapinoxe.rf.gd/sheet_music_violin_twinkle_twinkle_little_star.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/97591520693.pdfIn PDF document text
    • http://suziben.rf.gd/lipuj.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_off0001179b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1179B 5628 bytes
SHA-256: ca34cc0fa7ccf09247ac18d1f5dc890b477783c0a7bfa3f7e235055219609d7d
font_01_sfnt_off00012acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ACD 12724 bytes
SHA-256: 4359c7ffa002bef16058847b629fb582d1af32d133c53ec6f1938a270a39808d

Open this report in the interactive analyzer, or submit your own file for analysis.