Malicious PDF — malware analysis report

Static analysis result for SHA-256 db815d5c54d474b9…

MALICIOUS

PDF

67.8 KB Created: 2021-03-02 01:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e1625fc4c8a5fa638ec76d0cf2277a63 SHA-1: 14402dee7819c7bc1cbeace8f156e1ad9af70230 SHA-256: db815d5c54d474b9dfe0db3b816836a229e6873ccf6192c2ccf3d3ec5d82e117
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://midufefew.ru/wix?keyword=football+head+championship+2016 PDF link annotation
    • http://voirly.xyz/120478337153f1ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443325/normal_6039260eaa30b.pdfIn PDF document text
    • http://bevaxifiro.22web.org/42499887091.pdfIn PDF document text
    • http://trenketo.buzz/3_bit_full_adder_verilog_codeu52bl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412158/normal_603d7ba39c8bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403561/normal_600a63cf588e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450044/normal_5fe9f746075c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409614/normal_5fe2dfa1d3c05.pdfIn PDF document text
    • http://misstourist.info/acer_aspire_a315-_21_manuallt5xz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504922/normal_6001930ea69aa.pdfIn PDF document text
    • http://simomezubuxo.22web.org/66754242471.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458132/normal_6015f53f34204.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412606/normal_5ff064ff95cbb.pdfIn PDF document text
    • http://guitar.su/134124756589f5vh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369922/normal_5fe3b3a3ca45b.pdfIn PDF document text
    • http://neridipazaf.22web.org/rupewejopazewosevifoza.pdfIn PDF document text
    • http://sarelalitodidi.66ghz.com/dusopeses.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/wamatasamegu/wutipagop.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/cinema_4d_animation_template.pdfIn PDF document text
    • http://vitusaw.rf.gd/51056620139.pdfIn PDF document text
    • http://fiwiduropewoxo.rf.gd/robikajufope.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_off0000cb29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB29 5792 bytes
SHA-256: b3589ea8accddc04440a45d81ef606a2fa193d1bcee4542d9906501fc01d5e1b
font_01_sfnt_off0000debc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBC 10304 bytes
SHA-256: 58c121d6977e91410da1b756ddde7250c12629da5ff41d674c7af062f173095a