Malicious PDF — malware analysis report

Static analysis result for SHA-256 16874063c4329c30…

MALICIOUS

PDF

71.1 KB Created: 2021-01-24 21:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 290b9ab57113a58a9c4e59dadcaf2b76 SHA-1: 55e58b94a3ccdb35dee4a0646b880786c8ea2a26 SHA-256: 16874063c4329c30566b9b49c7a26b24bf04b783040205698843d5ce4b98529f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/wb?keyword=club%20princeton%20photos PDF link annotation
    • https://cdn.sqhk.co/pinufizugal/bQSiebS/ohio_lottery_bingo_times_10.pdfIn PDF document text
    • http://sokadap.22web.org/xiwaz.pdfIn PDF document text
    • http://tidedejix.iblogger.org/bagufogudovotasuwomegan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413838/normal_6001a5a0d3e25.pdfIn PDF document text
    • https://cdn.sqhk.co/lasesekov/hiBaRgh/49007021795.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_5fc6f1228dcd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447877/normal_600cb9acb5bb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502248/normal_5fd378004a766.pdfIn PDF document text
    • https://cdn.sqhk.co/dosakupu/dbWxYgg/stream_nfl_games_live_free_online_batman.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420431/normal_5fed5db4493ec.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/nedijowewoded/kutisejatasopilagenegap.pdfIn PDF document text
    • http://fowowoge.rf.gd/severe_asthma_guidelines_australia.pdfIn PDF document text
    • http://xexelakufakeze.epizy.com/ramozeparom.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/pop_warner_scholar_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/96789752386.pdfIn PDF document text
    • http://zowomazo.epizy.com/anne_klein_size_guide_shoes.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/detezidunogoxivadujulolep.pdfIn PDF document text
    • http://rolozaj.epizy.com/aflac_life_insurance_beneficiary_change_form.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_off0000d9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F4 4856 bytes
SHA-256: bcaec787c4b067fe2aa95ce257e2e8fe1224287e25d1422f502677f86e7b87e6
font_01_sfnt_off0000ea6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6C 10648 bytes
SHA-256: 7ebe0a9565722c95f3121f9bbc5de22282530322c3e8bc8fc58e43a374d1a5ca