Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d9ad3c468dcddc…

MALICIOUS

PDF

85.6 KB Created: 2021-09-20 17:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 96372595a27916c3c453b13343641d2b SHA-1: dad8f4d0de3469077dac414ae83b368d12cf0887 SHA-256: c5d9ad3c468dcddc53dd87e7997423b1302896541fa3e8ef899a66e43dbee1b5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://irlanc.ru/uplcv?utm_term=this+item+is+unavailable+in+your+country+play+store PDF link annotation
    • http://ed-web.cz/userfilesfile/jenewopogevirigenoziras.pdfIn PDF document text
    • http://mamaskitchenorder.com/uploads/files/47496698844.pdfIn PDF document text
    • http://lapmaymn.samdigroup.vn/app/webroot/upload/files/86502399598.pdfIn PDF document text
    • http://didopack.com/files/fujuviro.pdfIn PDF document text
    • https://tempegaring.com/contents/files/gonidaja.pdfIn PDF document text
    • http://cafegreenwichvillage.com/uploads/files/jubumizimezamokelurunelev.pdfIn PDF document text
    • http://memsports.com.br/admin/libs/ckeditor/ckfinder/files/96813904208.pdfIn PDF document text
    • http://zhongyuemedia.com/filespath/files/20210913174442.pdfIn PDF document text
    • https://minhkygroup.com/luutru/files/talik.pdfIn PDF document text
    • http://studiosantomauro.it/userfiles/files/13245211268.pdfIn PDF document text
    • https://speculatio.in/userfiles/file/26191450610.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/86724624448.pdfIn PDF document text
    • https://balaji-technology.com/userfiles/file/72732874628.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/gigudoxamufebazebe.pdfIn PDF document text
    • http://1qjd.com/upload/files/2021-09-02-05-31-51-vsixIS57.pdfIn PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/452cc99831ddef1935b4bb72c41c6b55/jewemakupiz.pdfIn PDF document text
    • http://dagmar-e.de/userfiles/file/93818902435.pdfIn PDF document text
    • http://ei-windykacja.pl/upload/file/86455868514.pdfIn PDF document text
    • http://newgoodluckcrane.com/admin/uploadfiles/file/30766743261.pdfIn PDF document text
    • https://tvsporedi.si/vsebina/wifateli.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613397ca90fd2---1223506655.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffec42a5dd---jonufekiderikeripe.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/referutidufo.pdfIn PDF document text
    • https://rux-thai.com/ckfinder/userfiles/files/20539464744.pdfIn PDF document text
    • http://holzweiss.at/47026410789.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE869 18056 bytes
SHA-256: ae74f6c1b1a6ff7637edbf9c531a71c450481c7ab1d672a8062ec14d2c8e7b80
font_01_sfnt_off0001170c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1170C 11024 bytes
SHA-256: f4e9084aa586333c52ff812f70a0630652a0417b2faabe75774ba731a5c3dff0
font_02_sfnt_off0001305b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1305B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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