Malicious PDF — malware analysis report

Static analysis result for SHA-256 61e316ff0b29f18f…

MALICIOUS

PDF

72.1 KB Created: 2021-02-22 12:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c418b073d8c2f99f2d8ad382bace583a SHA-1: ed5f4f7f93b0fba251614eb86a5e4fffa6a819e3 SHA-256: 61e316ff0b29f18fb4fa58562963abeef31d7a7808fc304fea732c769b2a2f67
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=windsor+design+workbench+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448124/normal_5ffba0be5eb36.pdfIn PDF document text
    • http://pudobatawizubi.iblogger.org/jubexuweworamifiti.pdfIn PDF document text
    • https://zeduxuvanoripi.weebly.com/uploads/1/3/0/7/130775880/fisevu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474727/normal_60034ae23571a.pdfIn PDF document text
    • http://rapegutuxipik.22web.org/putnam_investments_ira_beneficiary_distribution_form.pdfIn PDF document text
    • https://cdn.sqhk.co/ramowejub/G7Riil2/instagram_follower_increasing_app.pdfIn PDF document text
    • https://zofifonanofanap.weebly.com/uploads/1/3/4/8/134876640/592310.pdfIn PDF document text
    • https://zavitakeji.weebly.com/uploads/1/3/4/9/134904790/doduruwixadipi_raripofezok.pdfIn PDF document text
    • https://cdn.sqhk.co/gewurasi/hbwCifV/rally_house_dallas_mavericks.pdfIn PDF document text
    • http://lerasusakibura.22web.org/berthold_akzidenz_grotesk_opentype_free.pdfIn PDF document text
    • http://pizidojokinesa.66ghz.com/90631692312.pdfIn PDF document text
    • https://cdn.sqhk.co/muvetowiripa/OvghijK/cardboard_fireplace_amazon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390660/normal_5feb4a20f3e2b.pdfIn PDF document text
    • https://paxolobiwoke.weebly.com/uploads/1/3/1/1/131163878/xenuvenoluvitux_luseze_jezuxe_gadulixi.pdfIn PDF document text
    • https://kunudixi.weebly.com/uploads/1/3/4/6/134667289/b12fa8cd06f23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jisekexebaj.epizy.com/pozibafogis.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/gabetitusonalivowoto.pdfIn PDF document text
    • http://fetevatakipip.epizy.com/bilesokuru.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/nazogep.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/jorupidaxomazotidij.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/account_payable_days.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/apush_chapter_4_5_6_test_answers.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_off0000db71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB71 5328 bytes
SHA-256: 3b65a90f487d4f4f027a36fdc0960dc294abc30b4d03c15c2fbd4ea87323da7a
font_01_sfnt_off0000edb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 10924 bytes
SHA-256: 5d4ab0e1d2ef2cb64db7810d7d224fd80ec0953800677945acde439066c2d2c0

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