Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e154b9fc48d7d3…

MALICIOUS

PDF

64.7 KB Created: 2021-02-14 07:59:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ace0fad55df144b342e7dd0559fac761 SHA-1: 8f53d588249e1730aafc547c7d2a3e5735bf63cd SHA-256: e9e154b9fc48d7d3902c0190ce5c8bd5c2f401e01a8bf4bec2a704104d32c549
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=j+cole+iphone+6+cases+amazon PDF link annotation
    • https://jovuwimuj.weebly.com/uploads/1/3/0/9/130969820/033621355b6fe4.pdfIn PDF document text
    • http://arbitestpark.xyz/nosebapibijefonoxupixedukmdy7.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/kicHlij/wd_cloud_ex2_ultra_firmware.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415322/normal_6002e2d52dee7.pdfIn PDF document text
    • https://fobafomenizu.weebly.com/uploads/1/3/4/7/134753661/52e78b0c024c.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojelawov/iwhi0LF/walkthrough_monument_valley_2_level_8.pdfIn PDF document text
    • http://medway24.com/toggled_led_t8_installationoq1vj.pdfIn PDF document text
    • http://gamedv.design/victoria_university_sydney_financial_declaration_formrdj1l.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/gwSigGW/40224260785.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472491/normal_5fe6a6ce8f72c.pdfIn PDF document text
    • https://gejekawuxo.weebly.com/uploads/1/3/4/4/134497426/3473206.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_60170afd7486f.pdfIn PDF document text
    • http://8gusevshop.space/20th_amendment_in_constitution_of_pakistancbmh2.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/guwutivupudutu/dmax_spanish_tv_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/dna_replication_coloring_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/comino_couture_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/bulb_smash_hack_game.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/dewuzilom.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/fawux.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/bugolofew.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_off0000ba87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA87 5268 bytes
SHA-256: ab9b879bd9e21408662421b133fe4d823e23ff3cd10daceb5526a10e5826ab17
font_01_sfnt_off0000cc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4F 12652 bytes
SHA-256: 5ca8bf1405ff8e882dacaca63f1e9fc0b81bc0323435b6a7fe5cc5a346464481

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