Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee4810457f63e25…

MALICIOUS

PDF

68.7 KB Created: 2021-02-26 17:42:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 37dfeaab686c99e91a6cfc9736cbc9cd SHA-1: a6fb717d2a5e0b6a28e0210325d3817619270608 SHA-256: 5ee4810457f63e25bc6705b621da88f9560c03ea62ae2ddc8a20635bf566f30d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/award?keyword=coleman+eb15b+electric+furnace+troubleshooting PDF link annotation
    • http://foxinawolukomat.iblogger.org/ximuburavuselexixus.pdfIn PDF document text
    • https://cdn.sqhk.co/xasurila/l1xjhhg/fufobi.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/hp_laserjet_p4015_manual_feed_error.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/what_is_skin_so_soft_good_for.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445534/normal_60302a051da81.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/Pjeig0y/toddler_girl_princess_poppy_costume.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/donuzutagox.pdfIn PDF document text
    • http://paksorond.xyz/33813743935rm320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447884/normal_6024ac522b5b6.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/5842874114.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470028/normal_6006bcea4bd57.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xonifovozub.epizy.com/bethesda_can_t_mods.pdfIn PDF document text
    • http://zasegusof.epizy.com/tukozixezotigutugo.pdfIn PDF document text
    • http://ziwemasux.myartsonline.com/jaxonov.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_off0000cf33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF33 5516 bytes
SHA-256: ea1fd2fe8b9d10594d5566d899b3fd565dee67fa6dab671efdb00bdec42c00d8
font_01_sfnt_off0000e1ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CE 10664 bytes
SHA-256: d1090f67b008ff134444b1aff6fb5d0cd5ddd79d390cb8166046717e6727e96b