Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d9f777ab4573884…

MALICIOUS

PDF

71.7 KB Created: 2021-03-13 20:01:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cc686af2718598c5270f069a1965a45e SHA-1: ebf3ed5ca4797df1e3ee9b886eb92dd7a4232ce7 SHA-256: 4d9f777ab4573884ed17aceb181284dc159b014b56bc92d17f89922d076847b4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://xezojetit.ru/award?keyword=the+lusty+argonian+maid+pdf
    • https://pemugaladesav.weebly.com/uploads/1/3/5/3/135307247/7598532.pdf
    • http://xexejidabame.22web.org/38861140521.pdf
    • https://cdn-cms.f-static.net/uploads/4499995/normal_600d794fa96e8.pdf
    • https://wewodagib.weebly.com/uploads/1/3/4/2/134266566/japuf-lepixi-duvakem.pdf
    • https://cdn-cms.f-static.net/uploads/4494430/normal_601dafea3c461.pdf
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/fopusejakupebifijaku.pdf
    • https://static.s123-cdn-static.com/uploads/4414357/normal_5ff89b67caa4a.pdf
    • https://cdn-cms.f-static.net/uploads/4448536/normal_601dadb787374.pdf
    • https://cdn-cms.f-static.net/uploads/4488141/normal_6022456b73aa7.pdf
    • http://womumonafip.22web.org/why_is_thomas_so_important_in_the_maze_runner.pdf
    • http://zawotagulokexa.iblogger.org/77700231451.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tifuponakeg.epizy.com/38058429912.pdf
    • https://ded05c8b-f0d8-42bc-a64b-daa0b63394ca.filesusr.com/ugd/99afdc_452bd065e7ea4099a85703f2bb7b3938.pdf?index=true
    • https://s3.amazonaws.com/foneniz/ornamental_shrubs.pdf
    • https://uploads.strikinglycdn.com/files/8b19ea62-8807-4e9e-92f9-687df104a69d/xewutamegimavasoka.pdf
    • https://091a8774-b5bd-4fb7-8799-8d1ca0ca44ad.filesusr.com/ugd/8716ab_4715ca50825c4fd0bfd6027a29080f20.pdf?index=true
    • https://f3b86e06-b3aa-4ee1-82f7-79049f3379a8.filesusr.com/ugd/0c4fd2_a2cace67ec084b69b691d2e5d6c42009.pdf?index=true
    • https://s3.amazonaws.com/jovekus/xofuvutas.pdf
    • https://uploads.strikinglycdn.com/files/2aad23ce-6394-4f3b-905a-dd50c3a75978/calories_in_dunkin_donuts_mocha_swirl_syrup.pdf
    • https://s3.amazonaws.com/vuxalirudidel/ata_cancer_guidelines_2015.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d821.bin
f0e837262a5ecda54e90c5685fdca5b03a6b93d71468a83fc6d04193271f3195
pdf-font-stream PDF embedded font (sfnt) at offset 0xD821 5504 bytes
font_01_sfnt_off0000eabc.bin
f697b0c2e2d34b71876b7d4ae6c785f57e354618a9f80b3576a966bb17056b8a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEABC 11052 bytes