Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63892a22f43c535…

MALICIOUS

PDF

73.7 KB Created: 2021-03-01 16:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2c972a9462e35d6406422b164ea2a52a SHA-1: dd1d2fc39058c02463ae4864f949b6f686bf2a4b SHA-256: e63892a22f43c53517e9dc1d1ab073c1feb083c5f858c6009d3fc6700c51de11
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://fokemale.ru/wb?keyword=dungeons%20and%20dragons%20rules%20compendium PDF link annotation
    • https://barutonujumajom.weebly.com/uploads/1/3/0/7/130739232/jigekoposaw.pdfIn PDF document text
    • https://mefosenide.weebly.com/uploads/1/3/4/7/134715399/visukakitaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485152/normal_6017359c3dd05.pdfIn PDF document text
    • https://vavetupabon.weebly.com/uploads/1/3/3/9/133999816/fozasifu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393916/normal_5fe28bb357d99.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/electrical_engineering_1st_semester_books.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475564/normal_5fefd071068de.pdfIn PDF document text
    • https://fikosaxan.weebly.com/uploads/1/3/4/7/134753192/damegije.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417025/normal_5fea26a19dae6.pdfIn PDF document text
    • http://titalat.iblogger.org/how_to_make_a_working_grandfather_clock_in_minecraft.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404107/normal_5ff7760202fa1.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/libosokune/45473913932.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/what_is_the_purpose_of_arguments_in_a_function.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/kedotegotikenawojalusepab.pdfIn PDF document text
    • http://wajiletum.epizy.com/nudamedarasosadupo.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/jubamize.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/best_alphanumeric_keyboard_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/labipasevinut.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_off0000e22f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22F 5392 bytes
SHA-256: e0720682b6daca2fff73354d557c02f4dbc580600cb4589b654e25ad9afe5089
font_01_sfnt_off0000f477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF477 10976 bytes
SHA-256: 14eae0d22c3774357608b64c7bfe24ea5b2dca103a330b71fed357d00149724f