Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bcb9d8ebb173501…

MALICIOUS

PDF

81.5 KB Created: 2021-03-14 03:37:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: da495ec52754ba41e6bdc86857c6d374 SHA-1: 97d14fd1f63360df26f6a646af06e7646332d859 SHA-256: 2bcb9d8ebb17350138a8b33ace67855009cd58c1098755df4c238866fc36011c
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 0.9994

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 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://jumiwimov.ru/strik?utm_term=sun+joe+spx3000+best+price PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479439/normal_601696089dadb.pdfIn PDF document text
    • http://posadukik.getenjoyment.net/watifo.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/serato_dj_lite_1.3_3_macos_installer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409258/normal_601df475e22ec.pdfIn PDF document text
    • http://bexixibeguben.sportsontheweb.net/amy_tan_mother_tongue_critical_analysis.pdfIn PDF document text
    • https://kebonipima.weebly.com/uploads/1/3/0/7/130740513/wanewixi_pamapobajixul_xedelojemebu_tefuxilodewoban.pdfIn PDF document text
    • https://jakakatis.weebly.com/uploads/1/3/5/3/135323185/f5f6dec0f.pdfIn PDF document text
    • https://roxuvipiga.weebly.com/uploads/1/3/4/6/134637137/girefujebinozum.pdfIn PDF document text
    • https://wukakokusaz.weebly.com/uploads/1/3/0/7/130739200/b86212ef2128.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/givavexawoxe.pdfIn PDF document text
    • https://gibiboxovozigux.weebly.com/uploads/1/3/4/7/134722082/8837644.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/sazixipame/29905021586.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/68655582941.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/gerovojifutufiduko.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/husqvarna_gt52xlsi_for_sale.pdfIn PDF document text
    • https://d09251a9-b09e-4077-8ccb-24037f005f7b.filesusr.com/ugd/a6ce17_4a5ee300065b4797bce8cbb0f96eca39.pdf?index=trueIn PDF document text
    • https://1482387f-61d8-47e1-b538-9b7f1e8b89fb.filesusr.com/ugd/538d67_351be6d8bf6446df9e4c4b7e6d3f2f04.pdf?index=trueIn PDF document text
    • https://0f926834-650c-4d5a-b53c-ad60ae412ccc.filesusr.com/ugd/6a44d8_ff93edcd5f024efea4540cd75dd27ee7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jakujakula/bunting_flag_template_printable.pdfIn PDF document text
    • https://9e9203d9-9f5b-42f2-a849-05e42d741f90.filesusr.com/ugd/3527d5_7b22944912dd4707a924a399b4aa930a.pdf?index=trueIn PDF document text
    • https://52a72965-a6d2-471e-b66a-59a59a4d663b.filesusr.com/ugd/e643da_2663fb5e91e24c2e89853038842771e4.pdf?index=trueIn PDF document text
    • http://vexabimumemig.atwebpages.com/jufitodonufexufa.pdfIn PDF document text
    • https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_1b48f4becfe94fae8cf7e09dcaa706cc.pdf?index=trueIn 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_off0000fd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6E 5376 bytes
SHA-256: 82e4bd27334354fdd817002f4a0381e6d312fa7fbbb66142d2c1a3ae5eda590d
font_01_sfnt_off00010fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FD0 11840 bytes
SHA-256: dee97dac1a28d3aa7718d938d4a8588fdaddd2d3d8a7da5285fac780141ef483

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