Malicious PDF — malware analysis report

Static analysis result for SHA-256 1166804b6fc7f37a…

MALICIOUS

PDF

286.6 KB Created: 2022-02-12 05:13:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 0bf8f63eccf60f9e93eb705d67dc15a0 SHA-1: a64413df03346c401b0310111e6dbe3bfd94e3fe SHA-256: 1166804b6fc7f37a1f400068921176f84f6e37f4ffc0e97ce08d26531d4f3d56
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6377

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://norin.co.za/XSRYdR1H?utm_term=windows+boot+manager+file PDF link annotation
    • http://andrelandberg.com/userfiles/file/latunogewavasurefa.pdfIn PDF document text
    • https://kclandscapes.com/ckfinder/triplebuserfiles/file/bekabefozapodi.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfd84aa63a9---bitamat.pdfIn PDF document text
    • http://tajesink.com/Uploadfiles/files/53587269019.pdfIn PDF document text
    • http://caycanh.vn/images/fck/file/wabizokafenubekimurivus.pdfIn PDF document text
    • https://galedo.cz/www/data/cms_files/files/5837474718.pdfIn PDF document text
    • http://cistenivytahu.cz/upload/file/71325907636.pdfIn PDF document text
    • http://nitecoreromania.ro/files/file/vatagix.pdfIn PDF document text
    • http://nepalbestcargo.com/userfiles/file/92969665781.pdfIn PDF document text
    • http://hondaototanan.com/upload/files/zatibulosaronunubazed.pdfIn PDF document text
    • http://jiuxingchaoshi.com/uploads/file/141549143751.pdfIn PDF document text
    • https://micro-logic.ro/images/uploaded/file/97409239412.pdfIn PDF document text
    • https://exam11.menapoint.com/app/webroot/upload/files/jizewizuzovujufozoj.pdfIn PDF document text
    • https://petikdaun.com/contents//files/56634616469.pdfIn PDF document text
    • http://phulieumaymacbaoco.com/hinhanh_fckeditor/file/direzutorukedu.pdfIn PDF document text
    • http://myucpb.net/userfiles/file/paxuvezavuzerij.pdfIn PDF document text
    • http://onlinevay.com/upload/files/30696892858.pdfIn PDF document text
    • http://rgn2u.com/userfiles/files/viguka.pdfIn PDF document text
    • https://unimal.ac.id/assets/plugin/kcfinder/upload/files/75453319189.pdfIn PDF document text
    • http://www.neoneophytou.com/ckfinder/userfiles/files/mupekup.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/sozaxalevulez.pdfIn PDF document text
    • http://hcbarrett.com/user_area/file/68751865177.pdfIn PDF document text
    • http://dc-da27577df984.duragloss.pl/userfiles/file/70660831970.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1617a08de072ec---13300992471.pdfIn PDF document text
    • http://md-servicios.com/userfiles/file/mewowodejugeraj.pdfIn PDF document text
    • https://fetogram.ir/images/upload/files/10201902513.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/ebb4e03e2f4721a4cc79c05b21594550/2575488371.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F690 17620 bytes
SHA-256: a00d9f27dba1523cbc404eaf9c52722eb3d5fc563afa77dcdd8d84ddc28cee7b
font_01_sfnt_off000424d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x424D2 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off00043ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43AD4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000451f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x451F4 10916 bytes
SHA-256: 7e2e66f55bb891bedd1ca93a2dc9c05df42e80cf10d8d7d4f3fd70726d1caaac