Malicious PDF — malware analysis report

Static analysis result for SHA-256 22fe2f499dfe864c…

MALICIOUS

PDF

96.2 KB Created: 2021-03-13 17:03:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2d39b7d906456c853168bc763e09555d SHA-1: 563006c94e6fe92c2cdb527d8dd9ec4c234d18cb SHA-256: 22fe2f499dfe864ce2ef7cac767935127979838cde0d3783eb6f26db8d874d5c
104 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 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://dugedepap.ru/123?utm_term=business+management+oxford+ib+pdf PDF link annotation
    • http://power-guard.shop/zavimalebipeziketazamaufu5m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424040/normal_5fe678539846e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402252/normal_60443d5078a0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417658/normal_60009679e02c7.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/JuijF9K/notusukatijo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421040/normal_5fe03ecb3db72.pdfIn PDF document text
    • http://texoraw.sportsontheweb.net/xupogujewurokil.pdfIn PDF document text
    • http://bositozibab.getenjoyment.net/71679620303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416659/normal_600295919be82.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374704/normal_5ff35d9d46771.pdfIn PDF document text
    • http://juwaniwabi.medianewsonline.com/how_to_connect_epson_xp-310_to_laptop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454682/normal_6019a30f56909.pdfIn PDF document text
    • http://magexaxajatadog.getenjoyment.net/adobe_acrobat_reader_dc_download_free_viewer.pdfIn PDF document text
    • http://voiprormul.xyz/bajorurijejenyrhie.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452217/normal_5fc607ab6d4cf.pdfIn PDF document text
    • https://cdn.sqhk.co/jitegoji/hjLiijf/barred_spiral_galaxy_shape.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tudulem.rf.gd/datinideji.pdfIn PDF document text
    • http://sapirilogive.epizy.com/pisavelilumetudugem.pdfIn PDF document text
    • http://taguramol.rf.gd/76894953798.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_off00013926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13926 5588 bytes
SHA-256: ee99df413a1f4f6637162d0e315342edaf78f2823293e9a19d10ee7800d75743
font_01_sfnt_off00014c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C13 11552 bytes
SHA-256: cd8e05675b0d3780ee563cabb5074eaef21f7ddbf189e8ec4f169184209a8e60

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