Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7f0e5b67945317…

MALICIOUS

PDF

69.0 KB Created: 2021-03-03 14:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f00c320cdd0f6a99273baf43f375137e SHA-1: 7c6f6300e52036aa7d6cc976ad6e045bce9f1cc1 SHA-256: fa7f0e5b67945317e16a469e5357617636a97b0a1324fa4fc8a5672b7013ed75
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://kuzutuzo.ru/wix?keyword=doors+and+rooms+hospital+3-3 PDF link annotation
    • https://pijawofixogut.weebly.com/uploads/1/3/4/0/134017865/sanin-rizutipip.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxazagugura/hdjihjC/flight_sim_2018_game.pdfIn PDF document text
    • https://cdn.sqhk.co/bofagenined/ejgidjd/vexation_of_spirit_in_the_bible.pdfIn PDF document text
    • http://trenolgia.buzz/sermon_outline_on_peace_be_stillcw4qb.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/GsKjh3D/zalivopukafolinem.pdfIn PDF document text
    • http://marinarus.space/timojesunagagusakifexigqhbz.pdfIn PDF document text
    • http://fridgeservice.ru/59339054587yfr6g.pdfIn PDF document text
    • https://cdn.sqhk.co/kipezipilojo/auhf4jh/88058295958.pdfIn PDF document text
    • http://p-kavkaza.ru/award_winning_poetry_books_for_young_adults2qx01.pdfIn PDF document text
    • https://cdn.sqhk.co/zutigaku/chjgham/flights_to_destin_florida_from_lax.pdfIn PDF document text
    • https://mitebisaxu.weebly.com/uploads/1/3/5/3/135395238/vawebikoz.pdfIn PDF document text
    • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/3264b.pdfIn PDF document text
    • https://sovuzozasofebod.weebly.com/uploads/1/3/4/3/134343281/befap_lalumogofom_wunakegobimidad.pdfIn PDF document text
    • http://bilet-pdd.site/a_dark_song_movie_reviewjk5s5.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/titugome/lagu_chok_chok_dance.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/762665474.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/peaky_blinders_season_1.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/rosusedevozazitozibolugem.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/gatonefatazesilisubiki.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_off0000d195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD195 5396 bytes
SHA-256: 10f7c3947e719cf904215246b9ed203dd0a903e711db88d0c0719c4a1fa1cf6c
font_01_sfnt_off0000e3cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CF 10264 bytes
SHA-256: df2381e82a1ff6785000fb18d4119edc613594921cfa451cbd07554b3e0e4083

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