Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 e0d51e1d62827178…

MALICIOUS

PDF / .VIR

80.7 KB Created: 2022-06-06 16:44:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2024-10-26
MD5: b552f2f29118ca6f18083b09c8717ea2 SHA-1: 66b24279b82a5d22a3d69351c57b4612acd3353c SHA-256: e0d51e1d62827178a19fa72e3e133f2e586ba824206b21cba45fd4f33cd569be
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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://fecuq.co.za/YmrXLWy8?keyword=el%20sindrome%20de%20ulises%20libro%201%20pdf%20gratis PDF link annotation
    • https://casasholidays.com/scgtest/team-explore/uploads/files/vifidafotorugasex.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/b4eee9eee531471b0a0957b84b146a88/36429485752.pdfIn PDF document text
    • http://fandimnarodaku.cz/upload/file/liradetozibumaravumidibaj.pdfIn PDF document text
    • https://kiwogoro.weebly.com/uploads/1/3/4/6/134635848/xazakejulu.pdfIn PDF document text
    • https://beginuvemosuso.weebly.com/uploads/1/3/4/6/134699988/049761e5f811d.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/35522206470.pdfIn PDF document text
    • https://gibolavisijubaz.weebly.com/uploads/1/3/0/8/130813033/tijofetoregiz-rizitasoki-mufosatelenin.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/5fb12ba776f546962d00a337d43a0879/59047452998.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/file/79597379421.pdfIn PDF document text
    • http://grk.rigel-regensburg.de/upload/files/16368644113.pdfIn PDF document text
    • https://takazomidiki.weebly.com/uploads/1/3/4/4/134470224/dikemopiwasi_nosanirajisi.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/zosejovafarewosu.pdfIn PDF document text
    • https://pankajplast.com/ckfinder/userfiles/files/tutusanux.pdfIn PDF document text
    • https://zuzowasef.weebly.com/uploads/1/3/4/3/134351381/bifobifobe.pdfIn PDF document text
    • https://wefuguveriviwex.weebly.com/uploads/1/3/4/8/134873390/jixedojuwe.pdfIn PDF document text
    • http://customartdirect.com/kcfinder/upload/files/20882860905.pdfIn PDF document text
    • https://lirodute.weebly.com/uploads/1/3/1/8/131871659/3733229.pdfIn PDF document text
    • https://wimavebitajiki.weebly.com/uploads/1/3/4/6/134609796/tituwo.pdfIn PDF document text
    • https://heritran.vn/uploads/news_file/tutozovufuvilapu.pdfIn PDF document text
    • http://nc-israel.ru/upload/files/fekujejirogejogerifumule.pdfIn PDF document text
    • https://fizegebukuri.weebly.com/uploads/1/3/1/4/131453213/voduvitosoxu-tutaduz-xalejusimikopa-fedufekuj.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000ced2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ced2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ced2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED2 11116 bytes
SHA-256: 86d3c71914bc4dd0fa16441cefdda20afe80e3ed99b0b5138bcb6f494edafa93
font_01_sfnt_off0000e84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84B 20336 bytes
SHA-256: bfce02f7a1eb6954db5ed2109f58d0bd553645bfd3f815ba25e25b8f3938495b
font_02_sfnt_off00011bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BD5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1