Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc9cba074d6dcd9…

MALICIOUS

PDF

72.1 KB Created: 2022-05-01 02:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: eaad9f7968a7aae6d3dcef66756045aa SHA-1: eb9ec6d67e7140425ea1625fee7d083f8caf05a6 SHA-256: 1dc9cba074d6dcd9776be2f8178faf74f2fe9d710bd64aaf1db65b6fa1e50eb7
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 7

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://wirut.co.za/YmrXLWy8?keyword=brookstone%20alarm%20clock%204511%20instructions PDF link annotation
    • http://rudolphalexander.com/uploads/files/nuruxirug.pdfIn PDF document text
    • https://revikavebizuxev.weebly.com/uploads/1/3/4/3/134383550/c331dc.pdfIn PDF document text
    • https://jotulamopusojo.weebly.com/uploads/1/3/4/4/134465369/janevanalogemedutib.pdfIn PDF document text
    • https://wurelufuzowevel.weebly.com/uploads/1/4/1/3/141388467/2180615.pdfIn PDF document text
    • https://mawetifatine.weebly.com/uploads/1/3/2/6/132683292/6d9cdf75ec195.pdfIn PDF document text
    • https://nijumaweka.weebly.com/uploads/1/3/1/3/131379182/vapebodeveburoveta.pdfIn PDF document text
    • https://ritixiduj.weebly.com/uploads/1/3/5/3/135308555/6711580.pdfIn PDF document text
    • https://xesawamerubipox.weebly.com/uploads/1/3/4/6/134629950/govixagaraboxufa.pdfIn PDF document text
    • https://bibawegosisuzu.weebly.com/uploads/1/3/5/9/135961680/9864221.pdfIn PDF document text
    • https://jawubabob.weebly.com/uploads/1/3/1/0/131070379/rozetoku.pdfIn PDF document text
    • https://lidajegufevu.weebly.com/uploads/1/3/5/2/135299661/6344207.pdfIn PDF document text
    • https://tidoleji.weebly.com/uploads/1/3/5/3/135396674/tovomir-dufejezoji.pdfIn PDF document text
    • https://diwopasod.weebly.com/uploads/1/3/4/4/134475510/rezufe.pdfIn PDF document text
    • https://direnebem.weebly.com/uploads/1/3/4/6/134641367/8402156.pdfIn PDF document text
    • http://isagenixmakessense.com/ckfinder/userfiles/files/funepizapaputa.pdfIn PDF document text
    • http://philippetardieu.com/kcfinder/upload/files/jubarerexokesipugojefabi.pdfIn PDF document text
    • https://zerorobasajegi.weebly.com/uploads/1/3/4/7/134751736/wezivagomodi.pdfIn PDF document text
    • http://bebaldebaran.eu/userfiles/files/87833925689.pdfIn PDF document text
    • https://kowabimope.weebly.com/uploads/1/3/4/3/134359524/2074546.pdfIn PDF document text
    • https://kevexopibuxapo.weebly.com/uploads/1/4/1/4/141428538/visoberadozu_nenulabafixa_makarifew.pdfIn PDF document text
    • https://gijowazav.weebly.com/uploads/1/3/4/0/134097260/2670675.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/dsbkoiggbp49otvk41ffl5ko83/51012642929.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 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_off0000b185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB185 17204 bytes
SHA-256: 71667062796b54375ffedf3216802cd9b03742519aa3bb0f1d89ba1351cb96de
font_01_sfnt_off0000de60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE60 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF677 10900 bytes
SHA-256: eb63d11f76feb21c0b2b29fa0426c871ca6c8197729352e5df6522d732c4ff74