Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc15843661680fc…

MALICIOUS

PDF

70.2 KB Created: 2021-04-01 09:45:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: af474f277bfc6053d81c64ce9e75698f SHA-1: cebeabc4be03d54001ca1b6e469c53abbe923da7 SHA-256: 0fc15843661680fcf6d8f6d9e7779f31dfdd1f017c19c5f80c4816d839cdcb71
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/strik?utm_term=hitachi+c10fch2+replacement+parts PDF link annotation
    • http://cheatyou.site/wigurituvixofirp304.pdfIn PDF document text
    • https://rerimewanuxo.weebly.com/uploads/1/3/6/0/136036548/xilunidoxiwega_vatawafek_panutegak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458394/normal_5fe3500eddd85.pdfIn PDF document text
    • http://katalog-siberian-force.online/2727310710ddv1z.pdfIn PDF document text
    • http://jopagozopive.medianewsonline.com/25536591931.pdfIn PDF document text
    • http://dorightpress.com/picsart_photo_studio_collage_maker_downloaduydm8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476782/normal_5fdb2f7c2ff9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389585/normal_5fce426eb7444.pdfIn PDF document text
    • https://kajubogoxin.weebly.com/uploads/1/3/0/9/130969430/3aeec2eb1964.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/survey_of_modern_algebra_birkhoff.pdfIn PDF document text
    • http://xanevejesofag.mygamesonline.org/54764663100.pdfIn PDF document text
    • http://volulolusawaz.mygamesonline.org/50074242723.pdfIn PDF document text
    • http://betmoy56.com/289604715010mpk6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408190/normal_5fc801fff20d3.pdfIn PDF document text
    • http://laluwaraselolar.mywebcommunity.org/ghersi_cemento_armato.pdfIn PDF document text
    • http://naturfresh.fun/911527661745ybbn.pdfIn PDF document text
    • https://neriguzoxivefu.weebly.com/uploads/1/3/5/3/135319498/2011f75f0b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469365/normal_5ff361d50a209.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457876/normal_600f4c2c31b0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390074/normal_5feb5cdd0fca5.pdfIn PDF document text
    • http://viwafuxofiseko.getenjoyment.net/fodakamapawadadamukupuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415740/normal_5ffc49b15e62b.pdfIn PDF document text
    • http://jofifuneku.medianewsonline.com/simple_past_tense_story_exercises.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jemileti.atwebpages.com/wunaxaromadisomudopif.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_off0000d69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69D 5544 bytes
SHA-256: b86897977fc058374ea9d04ed0c9a9e02a27473c92d9609fa7544502551fb66d
font_01_sfnt_off0000e950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE950 9788 bytes
SHA-256: 7c9ece9f98c702e8cc76b685a8363c67bcd36c7e21eee40de2117156f2e0fa9b

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