Malicious PDF — malware analysis report

Static analysis result for SHA-256 268f10597b762289…

MALICIOUS

PDF

449.7 KB Created: 2022-04-27 03:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 69e46a8d970de2af51b4da6df881e92f SHA-1: 6fe90abd3a67b678f28c62a285f61aebc669c6f1 SHA-256: 268f10597b7622894d0eae51210893a4e359105d7b96b9316e843bdad3191e1f
216 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3915

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
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1625b1d34617db---xitopirufaxewekezetuxube.pdf In PDF document text
    • http://newabel.com/ckfinder/userfiles/files/ferisapidaxibejamigob.pdfIn PDF document text
    • https://megofinupulezix.weebly.com/uploads/1/4/1/5/141510303/cb5e323651fc1f6.pdfIn PDF document text
    • https://vusedezuz.weebly.com/uploads/1/3/4/5/134588652/mixewi.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1625d3854f156e---vewasegexusowovixovewikok.pdfIn PDF document text
    • https://sojurepew.weebly.com/uploads/1/3/5/9/135992925/480efa0ed.pdfIn PDF document text
    • http://elixiriso.com/kcfinder/upload/files/jixazozefiropiraz.pdfIn PDF document text
    • https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/43811323245.pdfIn PDF document text
    • https://rowiteruna.weebly.com/uploads/1/3/4/4/134470704/b5132a679ac2.pdfIn PDF document text
    • http://sochi-riba.ru/ckfinder/userfiles/files/92379653565.pdfIn PDF document text
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/wozir.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f7a5c3c539---79238076258.pdfIn PDF document text
    • https://wekenatiwajeko.weebly.com/uploads/1/3/7/5/137508738/sokawutam_miludilix_vifawaj_maxabirutaxeja.pdfIn PDF document text
    • https://jewelilug.weebly.com/uploads/1/3/4/3/134331877/zalodobifufaxo-kowosovivididos.pdfIn PDF document text
    • http://jian-yuan.com.tw/kcfinder/upload/files/84763830101.pdfIn PDF document text
    • https://walikefodi.weebly.com/uploads/1/3/4/6/134669876/8398783.pdfIn PDF document text
    • https://mujekakuvegaxum.weebly.com/uploads/1/3/2/3/132303245/zomuburunogesol.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/t1nuihc1c6el6nikmhsr73vmg6/56137172513.pdfIn PDF document text
    • http://ghefootmassage.com/fckeditor_userfiles/file/lajujuj.pdfIn PDF document text
    • http://anquocrealty.com/uploads/image/files/25444824398.pdfIn PDF document text
    • http://ccsl.asia/files/damazelidem.pdfIn PDF document text
    • http://leeuwarden.scholenkeuze.nl/UserFiles/files/vuxasafaxe.pdfIn PDF document text
    • https://coloradoofficecleaning.comfortvacation.com/userfiles/file/gezamujefibusezaxotu.pdfIn PDF document text
    • http://jirout-truhlarstvi.cz/upload/files/bowowif.pdfIn PDF document text
    • http://lustigersteirer.at/userfiles/file/rurilidisalur.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/0f0d3e5bc6e.pdfIn PDF document text
    • https://dukopovofozevi.weebly.com/uploads/1/3/5/2/135295758/tavaxolavafipeb.pdfIn PDF document text
    • http://jesupraguefilm.cz/pic/files/2801299381.pdfIn PDF document text
    • https://cantellodetersiviprofessionali.it/uploads/file/xirixixodiwaso.pdfIn PDF document text
    • https://feroredo.weebly.com/uploads/1/3/1/3/131379294/6197c4e6636ec.pdfIn PDF document text
    • https://tujobofawoti.weebly.com/uploads/1/3/2/6/132695409/47a21ec3bc0f51.pdfIn PDF document text
    • https://xefesikixote.weebly.com/uploads/1/3/1/4/131437823/zajewidemeza-tomaxexokotagug-vaxaj-zibodomosuxip.pdfIn PDF document text
    • https://raljob.com/userfiles/file/wezewit.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/hmn39gogovdnlnrouhrsfmm1um/wivunoburabogugi.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/ripadubazepe.pdfIn PDF document text
    • http://tuttotop.com/userfiles/files/51280573115.pdfIn PDF document text
    • https://foodphotoshop.com/userfiles/files/pubaxuwosipuzepiwugegufut.pdfIn PDF document text
    • https://orderpoet.com/ckfinder/userfiles/files/dadoxafe.pdfIn PDF document text
    • https://galevegu.weebly.com/uploads/1/3/4/5/134507196/tijipig.pdfIn PDF document text
    • http://dafangtour.com/fckeditor/userimages/file/62174667946.pdfIn PDF document text
    • https://suruburi.net/mm/file/68417370338.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=public+ads-+b+performance+report%28+paper%29PDF 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 extracted file (font_00_sfnt_off0006943d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006943d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006943d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6943D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0006ac4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC4F 18404 bytes
SHA-256: 0b2528e9bc0a38d5165abd028f814b79b7037581e7dd9a887f84a0d74938c962
font_02_sfnt_off0006dbb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DBB7 11212 bytes
SHA-256: ca1933353a3c5a0ac9ced7c83760274bed751029a55dd7e605b570b897272530