Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c07083942b22b5…

MALICIOUS

PDF

73.4 KB Created: 2021-10-04 19:31:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: bbdf5aa7c23f8d738abec49638f9c61c SHA-1: 7820dd3ada240c0109528b49361fbc99c73b08ea SHA-256: 93c07083942b22b5c7744f14aeebad877ad8458fe46037d26b85cce8148e321d
239 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9915

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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.
  • 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://wastran.ru/uplcv?utm_term=jumper+hollywood+tamil+dubbed+movie+download In PDF document text
    • https://www.servicespace.org/inc/ckfinder/userfiles/files/68234956740.pdfIn PDF document text
    • https://tidurmalam2.com/contents/files/77158611987.pdfIn PDF document text
    • http://benardoutlite.com/admin/fckeditor/fckdata/file/wemagadezakuruxezekorex.pdfIn PDF document text
    • http://gaudi.tw/upload/file/23763960965.pdfIn PDF document text
    • https://urology-andrology.com/userfiles/file/kezej.pdfIn PDF document text
    • http://surestegc.org/documentos/file/bawifugute.pdfIn PDF document text
    • http://groupelamiri.com/uploads/FCK_files/file/42453375762.pdfIn PDF document text
    • https://phucatgarment.com.vn/ckfinder/userfiles/files/43763788159.pdfIn PDF document text
    • http://autolubitel-irk.ru/userfiles/file/vekefafewitefegituku.pdfIn PDF document text
    • https://living-stone.lu/userfiles/files/84951316864.pdfIn PDF document text
    • https://www.ventisilva.com.br/ckfinder/userfiles/files/ziseludi.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1615a8781f154f---7290410316.pdfIn PDF document text
    • http://varosom.hu/userfiles/files/81205296749.pdfIn PDF document text
    • http://autokolcsonzoszolnok.hu/admin/fck_upload/file/62215026380.pdfIn PDF document text
    • http://ippon.lv/uploads/File/nasiba.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2021092716144673499.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1615aaf4b8dec1---84878741907.pdfIn PDF document text
    • https://nakipoglugroup.com/upload/ckfinder/files/tigumavixitusalo.pdfIn PDF document text
    • http://rowerowaszkola.pl/imgturysta/files/zakimutovavu.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e7ce3441c0---taniwa.pdfIn PDF document text
    • https://peterdegendt.be/file/70620803964.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614796bf5c111---pivezotifelukulivumugila.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614024209874f---99388484664.pdfIn PDF document text
    • https://vidaleve.ind.br/ckfinder/userfiles/files/86296569371.pdfIn PDF document text
    • http://nanumed.ro/uploads/files/kojamagedebefa.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/71486022170.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_off0000b65d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b65d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB65D 17904 bytes
SHA-256: 0b5d258baae069ee8fcd119a8370bef701dedbd47206a0382bcdde4144db8930
font_01_sfnt_off0000e45f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45F 10988 bytes
SHA-256: b8c03f1a5503ecde0166ae8f132ce9ed4552916a0dc6ae22081112c6a5610a75
font_02_sfnt_off0000fd82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD82 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1