Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff29c362a3428cc3…

MALICIOUS

PDF

72.7 KB Created: 2021-03-28 07:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b6ed1961b8e4c8fa22bd278a58712d54 SHA-1: 82fea84f82925bf4a8865c1b5e2e2422d971df05 SHA-256: ff29c362a3428cc3743758c2b2ab01d6f5197638e1e78060c66ca9a759a25986
162 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. It uses an invoice-themed lure. 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 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=novation+vs+assignment+real+estate In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366325/normal_60475d112cb0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461516/normal_600ce31a5824f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422631/normal_5fdf557701cfe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450907/normal_5fcb4039d1aa0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_605b23c13b6ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417032/normal_6047b7b2023c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487208/normal_5fd2d474d9ff6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476453/normal_5fec21d716747.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/jaxesabi/83345016667.pdfIn PDF document text
    • http://jezanijumoz.epizy.com/the_sinister_spire_review.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/79581171742.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/63311692508.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8192946d-4e71-4570-bea6-fe5283146a32/fugoba.pdfIn PDF document text
    • https://s3.amazonaws.com/bagokiko/zuvixigatusilunetixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aa318a8-34f2-4eed-8b41-2cc749c5bec6/jetur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cacee57e-0070-4d3b-ab33-09568cca22fb/temperament_test_dog.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/robert_marzano_classroom_instruction_that_works.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa6af4bb-daec-4185-ae7d-04ff97203294/where_is_jaycee_dugard_now.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/automatismo_industrial_senati.pdfIn PDF document text
    • http://sewejatoxomo.rf.gd/tuzuzuvolegijogu.pdfIn PDF document text
    • http://bexatati.epizy.com/lepodivujupuv.pdfIn PDF document text
    • http://vubedarav.epizy.com/32616912426.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 8

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_off0000df34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 5032 bytes
SHA-256: 0cff2d203c3a078334a3e733d00e8423e808226b8fd7b2b0701fe36d9d84c610
font_01_sfnt_off0000f04a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04A 10980 bytes
SHA-256: 37ba329e71fbd83245c749edcc5ecceaceb9736b9e2a39aa304100e78f3e1e9a

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