Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef196e90f3f0d84e…

MALICIOUS

PDF

459.9 KB Created: 2022-05-23 01:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 6901a092641ad17830df71e730a43ceb SHA-1: ea1bb70db7f560b0ea240752a905292aaf15e596 SHA-256: ef196e90f3f0d84ea783ef493b0aff1a2131c3fe721509ed8f4a3d1526df0923
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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 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 https://officialbacknumber.org/editor_up/xiraj.pdf In PDF document text
    • https://zebewanuvaxa.weebly.com/uploads/1/3/4/6/134613040/fe7cf0395701.pdfIn PDF document text
    • https://rulodevutotodu.weebly.com/uploads/1/4/1/2/141251913/10dce.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2022040521515473499.pdfIn PDF document text
    • https://famexowizesiz.weebly.com/uploads/1/3/4/3/134359716/lekazumujok.pdfIn PDF document text
    • http://bioident.pl/photos_fck/file/48785550295.pdfIn PDF document text
    • https://mitixomog.weebly.com/uploads/1/3/4/8/134859124/tanununi_befusidode.pdfIn PDF document text
    • http://papaicountrylodge-longstay.com/user_img/files/jisonimediruxo.pdfIn PDF document text
    • https://mutosonagok.weebly.com/uploads/1/3/4/3/134316738/finedufojezedubuwa.pdfIn PDF document text
    • https://sosnovgeo.ru/userfiles/file/91105444683.pdfIn PDF document text
    • https://waxparadise.pl/userfiles/file/tutesofowexorugiluga.pdfIn PDF document text
    • https://ferowadamo.weebly.com/uploads/1/3/4/5/134593689/topibonimub.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/162703ae7d0c3f---fugizirelip.pdfIn PDF document text
    • http://kristiankutschera.de/userfiles/file/rijiwutoforuloraza.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1623c496b84c90---29067343532.pdfIn PDF document text
    • https://expobar.vn/app/webroot/files/images/pages/files/19079765376.pdfIn PDF document text
    • http://legalhouse.pl/files/files/5903154427.pdfIn PDF document text
    • http://myflora888.com/ck_files/files/10806581566.pdfIn PDF document text
    • https://kerozisid.weebly.com/uploads/1/4/1/2/141254375/zakadivewisuji.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16231dd7a1b9bf---17528960186.pdfIn PDF document text
    • https://pazunorafozide.weebly.com/uploads/1/3/0/7/130776571/6298617.pdfIn PDF document text
    • https://tuzakipimuvujuv.weebly.com/uploads/1/3/0/8/130813756/modavagoso_feroxaxasumil_desexuguwijoku.pdfIn PDF document text
    • https://wudizibi.weebly.com/uploads/1/3/4/4/134477582/tisokawudotet_subogavi_ritolotepapuge.pdfIn PDF document text
    • https://lijarodamuvoraj.weebly.com/uploads/1/3/4/4/134456910/881f6f606befd0.pdfIn PDF document text
    • https://dojunajib.weebly.com/uploads/1/4/1/8/141838423/a4e939c440.pdfIn PDF document text
    • https://la-klamm.org/userfiles/file/viwotogeb.pdfIn PDF document text
    • https://papulijodozos.weebly.com/uploads/1/4/1/4/141420085/penotubef.pdfIn PDF document text
    • https://suzagosezamonu.weebly.com/uploads/1/3/4/4/134446802/1bf3bc2cde37f.pdfIn PDF document text
    • https://mabuzati.weebly.com/uploads/1/4/1/4/141496959/5a3874c228eba28.pdfIn PDF document text
    • https://jeroxesomob.weebly.com/uploads/1/3/4/5/134584548/gefujades.pdfIn PDF document text
    • http://www.como-grup.ro/fisiere/file/zimegunovijumepomubedowe.pdfIn PDF document text
    • https://senovaxevuka.weebly.com/uploads/1/3/5/3/135304629/8927608.pdfIn PDF document text
    • https://mixezefu.weebly.com/uploads/1/3/0/8/130874535/7181028c67a.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=lucent+english+grammar+pdf+book+download+online+english+free+onlinePDF link annotation
    • https://nuradadiwilamuz.weebly.com/uploads/1/4/1/7/141720267/nafofasinepareb-pezuz.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_off0006bec7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006bec7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006bec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEC7 11440 bytes
SHA-256: 2f10f9f97901bcd3d60feaed7c85f930a193453affe6ab865d5209b80f61f4b8
font_01_sfnt_off0006d93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D93A 17696 bytes
SHA-256: 0bdab904233522b8a56a114996d5f585c9b660ee8eaeeed57ce2226fff3cdccb
font_02_sfnt_off0007073f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7073F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1