Malicious PDF — malware analysis report

Static analysis result for SHA-256 002f17c0aa47cfa5…

MALICIOUS

PDF

125.3 KB Created: 2021-04-04 22:33:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 47bd0a56a29e1fdd722bb9e8157911bd SHA-1: 1a5612cd3ed64659fc3a8aa0864d00bf64885994 SHA-256: 002f17c0aa47cfa5cb00ca3ab5e860a8a1a25c8b4dcf877f1b16d7de881da42c
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 0.9999

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://botokaw.ru/123?utm_term=mlb+playoffs+format+2017 PDF link annotation
    • http://widonatozeg.mypressonline.com/ziguxoruxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402933/normal_5fecfd9a01761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378620/normal_6062452612bc2.pdfIn PDF document text
    • https://vilifamizebu.weebly.com/uploads/1/3/4/6/134617150/e1c48b4553e.pdfIn PDF document text
    • https://ranilabat.weebly.com/uploads/1/3/5/9/135999147/fekasifalusimigotame.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379474/normal_6028378f51365.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/9f0538a369f22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419433/normal_600f2da334127.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_6032dacd2231f.pdfIn PDF document text
    • https://zusabave.weebly.com/uploads/1/3/1/4/131406295/8875424.pdfIn PDF document text
    • https://gogovujogizog.weebly.com/uploads/1/3/1/6/131607278/7058509.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416494/normal_5ff808b01627d.pdfIn PDF document text
    • http://xubanapirobula.mypressonline.com/zetipomatoregod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409110/normal_5fd8765900144.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gumomexad.onlinewebshop.net/solidworks_electrical_3d_tutorial.pdfIn PDF document text
    • http://jadukubilelib.myartsonline.com/add_blank_page_to_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5f759a1-52de-4431-8be8-04285d75333b/46813289436.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/853925de-5f1a-436f-b39c-f68798e1c436/how_to_get_a_driver_license_in_tulsa_ok.pdfIn PDF document text
    • http://dasobiviwadodaj.atwebpages.com/55538206896.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_off0001a9c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A9C9 5700 bytes
SHA-256: 4ecb0d519a3abb177b342edeb1724d9d091365f869ccaf9253965706900c6c7b
font_01_sfnt_off0001bd3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD3D 12928 bytes
SHA-256: 2a6416a73852ffce8d323c04430f52a19832e0f1aae36ab1f5e0deb7371b047e

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