Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0fe73a7afbe2f64…

MALICIOUS

PDF

65.9 KB Created: 2021-02-28 13:54:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9c22ef382163496144e2f5ee41f80686 SHA-1: 43425a3b80e3e9e20d767bf035d3e61cc25c90dd SHA-256: d0fe73a7afbe2f64b932b934dd66bd7769ee27e81984e16de76056c73f9b52e9
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://baarspo.ru/award?keyword=shatter+me+lindsey+stirling+lyrics PDF link annotation
    • https://vetepoxep.weebly.com/uploads/1/3/5/3/135302771/mubemafoboma_funagapisoz_vavigugagoz_xudibafisabimak.pdfIn PDF document text
    • https://busuguzokiw.weebly.com/uploads/1/3/1/4/131406797/vinin-fogevidepux.pdfIn PDF document text
    • https://wepejusekubikur.weebly.com/uploads/1/3/4/4/134441987/kafosowo.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/djeUGMw/drop_it_like_its_hot_meme_boy.pdfIn PDF document text
    • https://cdn.sqhk.co/petawelesup/6KjcjfP/tisuwilavopolegufobinatut.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/hhdghjd/advanced_sword_mod_minecraft_pe.pdfIn PDF document text
    • http://dupadevoz.22web.org/kuzinumemetuponozimodij.pdfIn PDF document text
    • http://sudiwemubitep.22web.org/gefuvagoteforijigulut.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/rDCgdje/top_10_everything_2018_bollywood_movies.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/RBhfjbP/pokemon_card_value_finder.pdfIn PDF document text
    • https://gidutuzewefira.weebly.com/uploads/1/3/1/3/131380066/nilixutexovuja_jabapijot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lulanikigog.epizy.com/form_authentication_mode_in_asp._net.pdfIn PDF document text
    • http://xifidoragu.rf.gd/69507851974.pdfIn PDF document text
    • http://madogawurelapo.rf.gd/best_quotes_from_nicholas_sparks_books.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/kotaku_destiny_2_guide.pdfIn PDF document text
    • http://raseloxezonavo.epizy.com/c._i._s._f_full_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_off0000c62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC62A 5560 bytes
SHA-256: ce7013f7c023b36833d748e54d2fee0a946a2a3a07000b30f3dd66777a847183
font_01_sfnt_off0000d8e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E6 10208 bytes
SHA-256: c1c7559c321bd0a63cca1c58011718720747f16d84779a5ffbb14b71a733afda

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