Malicious PDF — malware analysis report

Static analysis result for SHA-256 574fc0b27682f423…

MALICIOUS

PDF

69.5 KB Created: 2021-02-20 12:53:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 37621f885aabf21b2c9eeb869651338e SHA-1: 5c6a83e3ae5eef8d584bacf652b75956a1c0a888 SHA-256: 574fc0b27682f4238cd525cfe4997bea20fadcb82809d9e5d99a96327022176e
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://bologen.ru/123?utm_term=how+to+score+gre+verbal+reasoning PDF link annotation
    • https://cdn.sqhk.co/topazawu/ghbicja/how_to_bake_bacon_wrapped_scallops.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421205/normal_5fe3995d02153.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412413/normal_5fd04df4b76d3.pdfIn PDF document text
    • http://nesapumedavemag.iblogger.org/vehicle_log_book_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414334/normal_5fe653c97c950.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411937/normal_6001b7944e95f.pdfIn PDF document text
    • http://magnetfix.store/lodidiwadagh3i7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383571/normal_5fe83ca4d3d1f.pdfIn PDF document text
    • http://alexsaf.ru/gepomolejb1j5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416501/normal_6023b603bb853.pdfIn PDF document text
    • https://cdn.sqhk.co/puwukuwos/jjcBxg0/coin_pusher_mania_game_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://migusopugaj.epizy.com/zororarob.pdfIn PDF document text
    • http://kiralemosokeze.epizy.com/what_does_error_b200_mean_on_a_canon_printer.pdfIn PDF document text
    • http://xatoveg.epizy.com/guiseley_school_sixth_form_open_evening.pdfIn PDF document text
    • http://xijovapafibowuw.rf.gd/intracranial_hypertension_treatment_guidelines.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_off0000d315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD315 5220 bytes
SHA-256: 98347bdbc959573b948f4a008fcc2cc1f76fb9b708413967ce36fdfa8e03e1ef
font_01_sfnt_off0000e501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE501 10508 bytes
SHA-256: 510c436a0b5088694cc054d2e61f339e46934c1efa4e65391a21449990236cbc