Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c4d5d8529cb06e…

MALICIOUS

PDF

343.2 KB Created: 2022-03-12 18:02:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 4e08cfb4f0aa4d317d55a7bec141fa39 SHA-1: 55b4493af1d9327fe452ef7c4065277392e2c55f SHA-256: a9c4d5d8529cb06e37f1b07a224f3add2cba9d6402c40e5c59709b3a43379b2c
161 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5434

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://tonyprins.nl/images/uploads/file/wugifuvegojuje.pdf In PDF document text
    • http://goupcrm.com.br/kcfinder/upload/files/67475619506.pdfIn PDF document text
    • http://abevenement.com/kcfinder/upload/files/11488036692.pdfIn PDF document text
    • http://zeshengtecphar.com/UploadFiles/FCKeditor/20220222195112.pdfIn PDF document text
    • http://eros-arena.de/eros/userfiles/file/54766255362.pdfIn PDF document text
    • http://grandwatergatehotel.com/upfile_hotel/files/7263246252.pdfIn PDF document text
    • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/sevemimigezamexokigeve.pdfIn PDF document text
    • http://melvin.cz/data/38745219851.pdfIn PDF document text
    • http://goddeal.cz/files/file/37891953229.pdfIn PDF document text
    • http://casopisfolklor.sk/assets/kcfinder/upload/files/zubonefibesi.pdfIn PDF document text
    • http://henskeschildersbedrijf.nl/upload/pixasirivazipumosulese.pdfIn PDF document text
    • https://latrinquette.com/upload/editor/file/sotali.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162103b341077b---xizuv.pdfIn PDF document text
    • https://motelandratecuci.ro/userfiles/file/towijurujuzavowok.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/gisanefufavudumav.pdfIn PDF document text
    • https://speak82.com/_UploadFile/Images/file/mupafenubudoj.pdfIn PDF document text
    • http://anke.de/data/anke.de/uploadfiles/file/vononejuzuxoguwij.pdfIn PDF document text
    • http://wsm.hk/images/files/loxij.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/fewerogaxidewobebidaleji.pdfIn PDF document text
    • https://unecol.com/uploads/kcfinder/upload/files/21095853053.pdfIn PDF document text
    • http://wenyanchem.com/upload/files/tugutepibikadi.pdfIn PDF document text
    • https://sunsetlearningcenter.com/userfiles/file/7041915400.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/50289183484.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/gomodajowireg.pdfIn PDF document text
    • http://suchanekstomatolog.pl/files/file/47530498436.pdfIn PDF document text
    • http://sloplast.com/userfiles/files/29077123260.pdfIn PDF document text
    • http://cuacuonductudong.com/upload/files/pujeluremeposo.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/92866481040.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2022-2-17/20220217023218712153.pdfIn PDF document text
    • http://vucert.vn/uploads/files/fujudo.pdfIn PDF document text
    • https://pansky.ru/UserFiles/File/teninin.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/19207777448.pdfIn PDF document text
    • https://laurallo.com/ckfinder/userfiles/files/54431615817.pdfIn PDF document text
    • http://sltd728.chinalandscapes.com/data/attachment/file/2738978285.pdfIn PDF document text
    • http://auto-berles.oldalunk.hu/userimages/files/wepelenazaxenemudevo.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/24750763335.pdfIn PDF document text
    • http://thsport.dk/userfiles/file/78493883222.pdfIn PDF document text
    • http://admin.accf-asean-china.com/assets/grocery_crud/texteditor/kcfinder/upload/images/files/27325768686.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16218c70931e94---45899955196.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=bambara+language+pdfPDF link annotation
    • https://baoholaodong24.baohohoanglong.com/userfiles/file/lugazenizavidi.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_off0004d24d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d24d.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d24d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D24D 19272 bytes
SHA-256: f402e5238d38a75cfc6319ff45b14efd4b58ac1baaa9d49ad877355b85f3433f
font_01_sfnt_off0005053c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5053C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051c57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51C57 16716 bytes
SHA-256: 6426318f917ec9d6b5c04e7255efad5e4bf724ebed73cbb9c1e79bc8d6c75987
font_03_sfnt_off0005345f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5345F 10656 bytes
SHA-256: 4ff044d1d591973c8109ae4255fa26e3a10d7f4ec1778b9759ba4605e1f7cc87