Malicious PDF — malware analysis report

Static analysis result for SHA-256 289d988288582327…

MALICIOUS

PDF

71.8 KB Created: 2021-02-26 02:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 96a2b4472dca7a949c3fd0a77b7e0ca2 SHA-1: 0a83e7cf9d5eb16c0b5d30c65ac100ce1cca6aff SHA-256: 289d988288582327553850b1d40130d67ce3101a6d5bbc0fbe56a6a6be86b5a4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=how+to+write+a+similarity+statement+for+a+quadrilateral PDF link annotation
    • http://dotixomovi.sportsontheweb.net/why_does_my_whirlpool_washer_not_start.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/tav_prasad_savaiye_fast.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/zejaki.pdfIn PDF document text
    • http://ramuwesitavoz.mywebcommunity.org/mufit.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/12826216417.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/wufivovevulupabaxuwenono.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/2018_forester_2.0xt_touring.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/23772436621.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481065/normal_5fe16bd53bb45.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zonebon/davodepete.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/bit._ly_dls_logo.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/dorebunipugav.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/35611747982.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/john_deere_71_planter_history.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/65th_bpsc_question_paper_set_a.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD434 1672 bytes
SHA-256: 67a5819d7bc968c676b441788869a62b512d1869d9a87c9d10aa145f1aafecfb
font_01_sfnt_off0000dc65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC65 5336 bytes
SHA-256: c396267736d80d9cf4f1214cab99fb237cbdac5fd04d8eb0576994d88fc167f2
font_02_sfnt_off0000ee84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE84 10084 bytes
SHA-256: 00e67a1ddb99911ce06ad96714c3cf0fbbb13a70b9802a76e464990a88c5d43f

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