Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb1925d08d7ca3d…

MALICIOUS

PDF

452.9 KB Created: 2022-04-13 18:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 5a94f787c7daa68a9b6d494c488e3bb4 SHA-1: 08f8e53744dfbddf596bce1e5d194af9352a964c SHA-256: 2cb1925d08d7ca3db986ef35360f83aea358fd57a9aa58167f45fa31715425bb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4571

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
  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://alpanelektrik.com/depo/sayfaresim/file/vipumizolufamijorapazi.pdf In PDF document text
    • http://www.lovebliss.tw/UserFiles/files/40599731410.pdfIn PDF document text
    • http://bahiratpatil.com/kcfinder/upload/files/61125559580.pdfIn PDF document text
    • https://www.madenisg.org.tr/kcfinder/upload/files/segezupefozaduva.pdfIn PDF document text
    • http://biondiairsystem.it/userfiles/files/razamejaxiz.pdfIn PDF document text
    • http://quimis.org/js/ckfinder/userfiles/files/22402563108.pdfIn PDF document text
    • http://pulaibao.com/userfiles/files/nemoturunariwup.pdfIn PDF document text
    • http://sushibelovo.ru/files/tukosesuletafakakosuxirak.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/danipemutodifavugabasuvom.pdfPDF link annotation
    • https://hinaweb.com/upload/file/61935092454.pdfIn PDF document text
    • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/aopb9ssed86ars0tr8iknjhu6f/lojuruder.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/60573572106.pdfIn PDF document text
    • https://tahsindincer.com/upload/ckfinder/files/91181919934.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/vozawujifezimomav.pdfIn PDF document text
    • http://ekhoron21.mn/uploads/files/zokeganuxam.pdfIn PDF document text
    • http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/28458354887.pdfIn PDF document text
    • https://onlinendttraining.com/files/79920896567.pdfIn PDF document text
    • http://rpsbchamber.org/editorData/file/21926585555.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16219e93514f76---95478229894.pdfIn PDF document text
    • http://www.almansori-ye.com/almansorifiles/files/jezisizidixuk.pdfIn PDF document text
    • https://coconut.hu/userfiles/file/wozeb.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/63832598182.pdfIn PDF document text
    • http://runo34.ru/attachments/file/18204541356.pdfIn PDF document text
    • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9c3f01e8f3---nenesiwigenovoruson.pdfIn PDF document text
    • http://battle.bpv.su/content/files/files/bemaxu.pdfIn PDF document text
    • http://haiannweb.com/uploads/files/bubijapedixipado.pdfIn PDF document text
    • https://nidi.mk/ckfinder/userfiles/files/60530151721.pdfIn PDF document text
    • https://manhalhealing.com/userfiles/file/jiduxusakofixemeteve.pdfIn PDF document text
    • https://esoft.com.bd/assets/ckeditor/kcfinder/upload/files/68383503701.pdfIn PDF document text
    • http://kant21.com/userData/board/file/vusopaganodopozaja.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161fed4f00c2f9---vovorakajopofifu.pdfIn PDF document text
    • https://djennebeads.com/nbloom/fckuploads/file/38435911538.pdfIn PDF document text
    • https://attack.lt/images/files/disogufo.pdfIn PDF document text
    • http://stellarp.com/userfiles/file/90099899059.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=biotecnika+times+pdfPDF link annotation
    • http://tcyy88.com/userfiles/file/2022021605595773499.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_off00069a5a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00069a5a.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A5A 17952 bytes
SHA-256: 32773300dff8a95aa60ad1c19993c65301ca4ec5a59fc515ac08577efd2efeb6
font_01_sfnt_off0006c954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C954 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0006e16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16B 10780 bytes
SHA-256: 246d0b96ff2d13e1f601505dd656ddfba18af8e7ec104f2aed349d0062b33b21
font_03_sfnt_off0006fa47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA47 2044 bytes
SHA-256: 9ff0be215eda4510cc1b192ab1b3482226358aa5dcf0ff2a485682e2549b9830