Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a925354048aeed…

MALICIOUS

PDF

84.5 KB Created: 2021-03-29 04:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 39a27965a4462dea6c8ea92e80a72962 SHA-1: 53c4c2dc75165861e2977f72640ca650895cd4b9 SHA-256: 80a925354048aeed1957a92f6f99fe32b34a816d680694161a548e60375d19b5
156 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://seumenha.ru/strik?utm_term=m-audio+keystation+49+mk3+dimensions PDF link annotation
    • https://valuzobuxile.weebly.com/uploads/1/3/2/7/132711949/kejewomovajupefagulo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380681/normal_5fcf0ce326b63.pdfIn PDF document text
    • https://labomozojaxige.weebly.com/uploads/1/3/0/7/130738499/dubugugokaluga-xudilix.pdfIn PDF document text
    • https://nejotadig.weebly.com/uploads/1/3/1/1/131164569/9610674.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/18855083426.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457305/normal_5fe27ac223154.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473916/normal_5fcbbe1e8a633.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/86598767444.pdfIn PDF document text
    • https://kivuxobusev.weebly.com/uploads/1/3/1/8/131871605/fegiforaxid-rivenavunepip-fusewolitizifaj.pdfIn PDF document text
    • https://pakidezosatujij.weebly.com/uploads/1/3/0/7/130775723/4d9e0910.pdfIn PDF document text
    • http://kinemulawaw.sportsontheweb.net/tofebiguluselomukina.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488810/normal_5fc84981ea31a.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/the_granularity_of_growth_download.pdfIn PDF document text
    • https://bilidugudixuxo.weebly.com/uploads/1/3/4/9/134902455/minoriwop.pdfIn PDF document text
    • https://mabaxezo.weebly.com/uploads/1/3/4/7/134766945/c5c5497e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374954/normal_5fd6f2923c501.pdfIn PDF document text
    • https://www.andertons.cIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://87164119-88a6-4d6d-a72f-b109cf2d88b9.filesusr.com/ugd/bd0a66_839f4f5e48e14a18b0149d29d1f1606f.pdf?index=trueIn PDF document text
    • http://xexelakufakeze.epizy.com/6597699569.pdfIn PDF document text
    • https://3c3b6f52-20a2-448a-be11-eec5930c502f.filesusr.com/ugd/0ca786_a61086750db44dd9b34256f6e8214459.pdf?index=trueIn PDF document text
    • http://xozokol.rf.gd/delegatus_non_potest_delegare_notes.pdfIn PDF document text
    • http://zutawatupasexap.rf.gd/bibinumamowibas.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_off00010931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10931 5456 bytes
SHA-256: e6bc20980e1b4c87be8ad407c4c08e7b086c16d8c79d34ac2514405a3f5cfa14
font_01_sfnt_off00011bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BDB 11468 bytes
SHA-256: 37e7728cdf68ed419ef2a411fe30f415dbfabf9db35c1719e6ae2f47e37e4103

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