Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae60fde45344cf5…

MALICIOUS

PDF

84.9 KB Created: 2021-03-22 15:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a9bedd4b204e8b2c8f18f62672734a8a SHA-1: 0d627c714e48b35164bb645f0f2ebc5104f285f9 SHA-256: bae60fde45344cf519de9b1ef3bfe7dd6ab5e1e59aa548d881959928e32cc8a8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wix?keyword=transformers+the+ultimate+guide+2007 PDF link annotation
    • http://salopkisa.website/what_is_the_reaction_order09chr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461495/normal_60064d23bdf91.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/gciihgY/luzelak.pdfIn PDF document text
    • http://salestore.pro/whats_the_latest_news_in_california03ci5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426059/normal_601da2b9f2220.pdfIn PDF document text
    • https://cdn.sqhk.co/juvebuzizej/hb7xMZL/zogizeze.pdfIn PDF document text
    • http://honbiz.pro/juwakogufobumojirotemjqacv.pdfIn PDF document text
    • https://cdn.sqhk.co/davusegeb/Osjjxjc/how_to_draw_marvel_superheroes_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476429/normal_5fe79bfe7bc6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413567/normal_604cf27db5cc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493195/normal_601e91f3e7471.pdfIn PDF document text
    • http://it50life.pro/sociolinguistics_booksrfjcv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465125/normal_603b2b380619c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388596/normal_6052f7d7e77de.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369495/normal_5ffd725399156.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/genedesowul/1888916337.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b59b2dc8-d0a0-4ad3-9002-a80449d48d94/23601778404.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14e40edc-b981-46a3-a2ac-735e1063cf86/bumubovojusesusewos.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/moses_prince_of_egypt_movie_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa16227-8d8b-442b-a11d-c65683243773/87575680092.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/gumaruwibubibajajixetagun.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/20129789015.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/spotify_premium_gratis_2019.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_off00010d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5B 5624 bytes
SHA-256: 26e533cb08d347c899742f8db1a2365a0e00817e4f5159b4aa56920eb5f9bd28
font_01_sfnt_off00012052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12052 11136 bytes
SHA-256: 29eae6c5037b87777c587e0f155f701356c0e1bac7c4d10ba6065ec92349bd46

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