Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da9595ee367283…

MALICIOUS

PDF

98.7 KB Created: 2022-06-06 09:52:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 9aa48fe8cf76035b513432dc55b49947 SHA-1: 97494e8f123319421b7c2264482a5c6f5ab9ac6c SHA-256: c5da9595ee367283414230ab1107738beb0407f10700475636a31f2deec5db22
286 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 8

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=atwinc1500%20programming%20guide%20%20pdf%20editor PDF link annotation
    • https://sefubokadizafa.weebly.com/uploads/1/3/4/8/134880044/saburilizugazid.pdfIn PDF document text
    • https://ledijafefip.weebly.com/uploads/1/3/4/4/134465499/lulaboj-bekofenif-ledomofunake.pdfIn PDF document text
    • https://zokijirimabijim.weebly.com/uploads/1/3/5/9/135964806/boralef.pdfIn PDF document text
    • https://parklanehotel.asia/userfiles/file/kitokaxupivamedutamebukej.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225dc0239f9b---rodogadi.pdfIn PDF document text
    • http://eurogalvano.com/admin/kcfinder/upload/files/musaretuweludikesu.pdfIn PDF document text
    • https://serubepage.weebly.com/uploads/1/4/1/7/141730531/7300e9f935b5ee.pdfIn PDF document text
    • http://analizmatbaa.com/panel/kcfinder/upload/files/57506187725.pdfIn PDF document text
    • https://rezopagukivuru.weebly.com/uploads/1/3/5/3/135307961/4815358.pdfIn PDF document text
    • https://lavivatum.weebly.com/uploads/1/3/1/4/131437335/xadaxutafomof.pdfIn PDF document text
    • https://psicologopsicoterapeutaemdrtorino.it/uploads/file/25214061646.pdfIn PDF document text
    • https://putavoguxula.weebly.com/uploads/1/3/5/3/135325624/2294196.pdfIn PDF document text
    • https://sijawakupud.weebly.com/uploads/1/3/0/7/130740213/67ff789bad20ef.pdfIn PDF document text
    • https://cr2tek.com/userfiles/Proj_Name/files/60200638913.pdfIn PDF document text
    • https://furogareb.weebly.com/uploads/1/3/1/3/131397930/e4d564380.pdfIn PDF document text
    • https://bexedejuwoj.weebly.com/uploads/1/4/1/6/141687557/topoxibosuxi.pdfIn PDF document text
    • https://kolumamiwokuboz.weebly.com/uploads/1/3/4/7/134718804/2940386.pdfIn PDF document text
    • https://shareen.persianfreegate.com/share/admin/upload/files/2291981375.pdfIn PDF document text
    • https://zexiditituluw.weebly.com/uploads/1/3/4/7/134734655/jozatugajosoba_dulez.pdfIn PDF document text
    • http://efckrakow.pl/userfiles/file/31559597124.pdfIn PDF document text
    • https://dutulizat.weebly.com/uploads/1/3/1/4/131436991/db9e27097.pdfIn PDF document text
    • https://psicologopsicoterapeutaemdrtorino.it/uploads/file/98666348413.pdfIn PDF document text
    • https://garizoruzaxa.weebly.com/uploads/1/3/3/9/133986237/gokiwuzalagido.pdfIn PDF document text
    • http://siamintertrade.com/file_media/file_image/file/funosezewi.pdfIn PDF document text
    • http://solo-reisen.com/media/images/file/geramosirusixinigajujikix.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_off00011230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11230 11224 bytes
SHA-256: 4be8dfa88c8dcc9b47077ef542362835d299bcece333b4755e81dae7c508c1bf
font_01_sfnt_off00012c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C6E 21644 bytes
SHA-256: cbfeb7039dcb07f09ecca47f4d281daf1f970210284a66718a1d7ea6247de685
font_02_sfnt_off000164bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x164BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1