Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0d3a2ce0f0612a…

MALICIOUS

PDF

79.2 KB Created: 2020-12-01 15:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: db3a5e1525dce45dca42f322215c0bce SHA-1: de37b2daad55de3a1557709d52364950ba585684 SHA-256: 0e0d3a2ce0f0612a0aeb590cc57cba551e659c0ae2745790ca4f82130b481a41
214 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 embeds a large number of external links characteristic of an SEO link farm and 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffmen.ru/strik?utm_term=tree+of+life+scripture In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5f8e2c4abf178.pdfIn PDF document text
    • https://wokesije.weebly.com/uploads/1/3/4/5/134597961/mufupibutoxefe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373999/normal_5fa19eb36c2d3.pdfIn PDF document text
    • https://kikunuwip.weebly.com/uploads/1/3/4/6/134687028/1844282.pdfIn PDF document text
    • https://duxevuwelinabim.weebly.com/uploads/1/3/4/3/134353564/jazowox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417140/normal_5f9a460442640.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d6195d49-bc70-48ef-b9b9-43d6bce484ef/midiman_midisport_2x2_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/spanish_grammar_exercises_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9ebe835-6aa1-46d8-929c-8207431c2db8/badokagomuk.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/83328617717.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/mekemedefodajasorokaratar.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/clash_of_clans_hack_tool_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/cgst_act.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/biomass_gasification_and_pyrolysis_practical_design.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DC 4524 bytes
SHA-256: cdb221b2df0ed3f8664e0723cfd8a1b55a1b3b32b36f40a0a99e7b0dbc63b24a
font_01_sfnt_off0000e758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE758 11280 bytes
SHA-256: 49a3e7227bcf64ea51388ae73917e35167207e0a4c3ec8a0e18b1885bcf808ec
font_02_sfnt_off00010cff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFF 16060 bytes
SHA-256: 1018660efa6a1a00280f0dbd6ee9814149b2344b9acf14d98de2cb76d1e712aa
font_03_sfnt_off00012196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12196 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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