Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c48a0bcae01e9f4…

MALICIOUS

PDF

69.5 KB Created: 2021-10-03 04:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 9f3758df75c43215cffc7a245a2f963c SHA-1: b9e0c156b5413db2350ff917581a7d7ca4011833 SHA-256: 1c48a0bcae01e9f4b44e41d31db4e332f96498ac45b8dd86b4b94140b56b310c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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 http://silverspringabw.com/uploads/files/48973054299.pdf In PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/161495cecb0be0---rodojaj.pdfIn PDF document text
    • https://semut73.com/contents/files/lopumizar.pdfIn PDF document text
    • http://ebrinteractive.com/userfiles/file/zanefova.pdfIn PDF document text
    • https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/44865932091.pdfIn PDF document text
    • http://hightopeducation.com/cms_uploaded/file/gojesiguteberanulewejaj.pdfIn PDF document text
    • http://studioarchperissinotto.eu/userfiles/files/20287980904.pdfIn PDF document text
    • http://sangtaoad.com/uploads/userfiles/file/37403463221.pdfIn PDF document text
    • http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/fudabigubinaruzulek.pdfIn PDF document text
    • http://unsersohn.com/images/file/70251828447.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/76163333259.pdfIn PDF document text
    • http://meimagedance.tw/ufiles/files/wexosebidafabedeluw.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2021-9-27/20210927140612696853.pdfIn PDF document text
    • http://downtowncincyhotels.com/core_degree/admin/images/cms_imagesfiles/romunumadopatubukosejaz.pdfIn PDF document text
    • https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/tadapizugetigadusizegi.pdfIn PDF document text
    • http://gazdalkodjokosan.hu/img/userfiles/file/fegenupavakelakomegoxenum.pdfIn PDF document text
    • https://charlesstreetvideo.com/userfiles/file/57919034888.pdfIn PDF document text
    • http://irodaszer.lukinserv.hu/file/1526805507.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136e45308013---35306625313.pdfIn PDF document text
    • https://cornerstonelaw.eu/userfiles/file/17173067946.pdfIn PDF document text
    • http://aktien-analyse.de/images/File/85488272898.pdfIn PDF document text
    • https://sofupingame.net/calisma2/files/uploads/bijadapuzanigizuj.pdfIn PDF document text
    • https://sanmuabancongty.vn/images/content/files/jukalo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=porn+anime+games+freePDF link annotation
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB160 10412 bytes
SHA-256: 014d6b8908bdc7d79cb3948bd6189f9aea826f3c639347fea981f2abe6e3e50f
font_01_sfnt_off0000c8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE102 15004 bytes
SHA-256: e84ab1768e39aca4184c0786f4e0521fcd78ff6f47c53718fe97160255a9e46e

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