Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0dd95d6a1038d68…

MALICIOUS

PDF

66.8 KB Created: 2021-02-19 23:22:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4a7db02b51692b1d520899105690af12 SHA-1: aaef27343052c398f32fa49a0d9785b7ab8e51c9 SHA-256: e0dd95d6a1038d68d9b1e1a7cd2fbfc37f5f63f724d3c20d3ac8fa7e747d844a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/123?utm_term=matematicas+financieras+pdf+frank+ayres PDF link annotation
    • http://detonic-shop.website/15697866369v00m0.pdfIn PDF document text
    • https://cdn.sqhk.co/vekotevudoze/bUaigdl/throne_chairs_for_rent_in_memphis_tn.pdfIn PDF document text
    • https://cdn.sqhk.co/kokademesuz/jCPiahc/clash_of_clans_world_championship_2019_bases.pdfIn PDF document text
    • https://cdn.sqhk.co/tujuvemevo/gcib1S8/happy_birthday_wishes_sms.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/XBSjgic/galaxy_sky_shooting_game_download.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/9880078.pdfIn PDF document text
    • https://cdn.sqhk.co/katutilit/fOsgdjg/54056480385.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzinipaz/Uzjcqhj/moneygram_phone_number_online.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/cgfjhhg/xurefifofuwazibev.pdfIn PDF document text
    • http://oneplusonemain.xyz/la_vida_precoz_y_breve_de_sabina_rivas_pelicula_completa_repelisgrkbc.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/novululanigakibezedewi.pdfIn PDF document text
    • https://dijibelusubif.weebly.com/uploads/1/3/4/8/134871127/659734.pdfIn PDF document text
    • http://shtampshop.ru/tencent_buddy_emulator_apkcnu6x.pdfIn PDF document text
    • https://cdn.sqhk.co/noligigibar/ZhgzNhi/24995804560.pdfIn PDF document text
    • https://cdn.sqhk.co/tokafumotebi/hOoi9O4/jisotazeputakutesu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vavazewesepato.epizy.com/business_plan_sample.pdfIn PDF document text
    • http://wepirizifomonij.epizy.com/metformin_benefits_and_side_effects.pdfIn PDF document text
    • http://wunipowozat.rf.gd/gymshark_seamless_leggings_size_guide.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_off0000c645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC645 5440 bytes
SHA-256: 5203839a1e9d00d6c63784c1e0763e181bb62b3f38bf3896036dc9bd999fece7
font_01_sfnt_off0000d8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CB 10884 bytes
SHA-256: b6767388a3351adf2c3f827a7efcf5c62a614046c45dcc58babbddc3f63636e1

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