Malicious PDF — malware analysis report

Static analysis result for SHA-256 f874d73e3a612b2f…

MALICIOUS

PDF

300.3 KB Created: 2025-07-30 09:52:22 +03:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-16
MD5: d5ce73a9dadbfce61e8579e43f28ad5d SHA-1: 84a3c69b9718cc9c223597ba61a88da292163666 SHA-256: f874d73e3a612b2fe35469e6ce7f9f620d3dbaaf4e8b21b82251b1356edf4077
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0164

Heuristics 5

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://baohohoanglong.com/userfiles/file/17734157892.pdf In PDF document text
    • http://altiro.nl/home/tjerk/file/88039264232.pdfIn PDF document text
    • https://belgraviainvest.net/userfiles/file/losekuroverexa.pdfIn PDF document text
    • https://beadsandlooms.com/ckfinder/userfiles/files/19502497963.pdfIn PDF document text
    • http://acudrved.com/ckfinder/userfiles/files/24077202207.pdfIn PDF document text
    • http://johnledesma.com/userfiles/file/7af08710-e93b-42ff-8c46-432e501d9eb6.pdfIn PDF document text
    • https://corpusbg.com/files/fck/file/ac86d91d-45b7-4e5b-9ae4-999845b43923.pdfIn PDF document text
    • http://andezit-bg.com/files/nolebulava-widuzizez-nudakudeni.pdfIn PDF document text
    • http://luijkzonwering.nl/image/file/lojigejaz.pdfIn PDF document text
    • http://gaofuzhidao.com/Upload/file///sobaseze-xudubixel-dusipil-wiramuti-rikaguji.pdfIn PDF document text
    • http://bobiniauto.com/userfiles/file/80297620054.pdfIn PDF document text
    • https://kalomin.com/uploads/content_files/files/2f00f553-5f2f-4bc3-a8a9-9794503b8a70.pdfIn PDF document text
    • https://sunima.gonujovux.com/306467921034459521700248443323917032046075?garogiliresipizavujadedibiditedigijugidinodegegipurazebokumedosonozulijujuviwiwerijopaxotudinumapeva=gagekepuvogapalewotebakuwozoxupadukejosezoxidiwalisazakafiwenutixanepexolafozavuxafutalixowotokomonuzimekagokatujadofemakemezapakivatodubopozosuwebevejisebexukiginutelakemopumaxiwijigazaxejupazuzupipirijilese&utm_term=how+do+i+love+thee+summary+line+by+line+pdf&jidubexobulawowopotumurujuturimasuv=bademikejogupovalusuzavopuzatebotisuginagobikozidovevijipafimufedumemaribejibunexatezolakoranidodisakozotezefuxidijejobijanulekijobaluxujujobit)/Type/ActionIn PDF document text
    • https://baohohoanglong.com/userfiles/file/17734157892.pdf)/Type/ActionIn PDF document text
    • http://altiro.nl/home/tjerk/file/88039264232.pdf)/Type/ActionIn PDF document text
    • https://belgraviainvest.net/userfiles/file/losekuroverexa.pdf)/Type/ActionIn PDF document text
    • https://beadsandlooms.com/ckfinder/userfiles/files/19502497963.pdf)/Type/ActionIn PDF document text
    • http://acudrved.com/ckfinder/userfiles/files/24077202207.pdf)/Type/ActionIn PDF document text
    • http://johnledesma.com/userfiles/file/7af08710-e93b-42ff-8c46-432e501d9eb6.pdf)/Type/ActionIn PDF document text
    • https://corpusbg.com/files/fck/file/ac86d91d-45b7-4e5b-9ae4-999845b43923.pdf)/Type/ActionIn PDF document text
    • http://andezit-bg.com/files/nolebulava-widuzizez-nudakudeni.pdf)/Type/ActionIn PDF document text
    • http://luijkzonwering.nl/image/file/lojigejaz.pdf)/Type/ActionIn PDF document text
    • http://gaofuzhidao.com/Upload/file///sobaseze-xudubixel-dusipil-wiramuti-rikaguji.pdf)/Type/ActionIn PDF document text
    • http://bobiniauto.com/userfiles/file/80297620054.pdf)/Type/ActionIn PDF document text
    • https://kalomin.com/uploads/content_files/files/2f00f553-5f2f-4bc3-a8a9-9794503b8a70.pdf)/Type/ActionIn PDF document text
    • https://sunima.gonujovux.com/306467921034459521700248443323917032046075?garogiliresipizavujadedibiditedigijugidinodegegipurazebokumedosonozulijujuviwiwerijopaxotudinumapeva=gagekepuvogapalewotebakuwozoxupadukejosezoxidiwalisazakafiwenutixanepexolafozavuxafutalixowotokomonuzimekagokatujadofemakemezapPDF link annotation
    • https://sunima.gonujovux.com/306467921034459521700248443323917032046075?garogiliresipizavujadedibiditedigijugidinodegegipurazebokumedosonozulijujuviwiwerijopaxotudinumapeva=gagekepuvogapalewotebakuwozoxupadukejosezoxidiwalisazakafiwenutixanepexolafozavuxafutalixowotokomonuzimekagokatujadofemakemezapakivatodubopozosuwebevejisebexukiginutelakemopumaxiwijigazaxejupazuzupipirijilese&utm_term=how+do+i+love+thee+summary+line+by+line+pdf&jidubexobulawowopotumurujuturimasuv=bademikejogupovalusuzavopuzatPDF link annotation
    • https://sunima.gonujovux.com/306467921034459521700248443323917032046075?garogiliresipizavujadedibiditedigijugidinodegegipurazebokumedosonozulijujuviwiwerijopaxotudinumapeva=gagekepuvogapalewotebakuwozoxupadukejosezoxidiwalisazakafiwenutixanepexolafozavuxafutalixowotokomonuzimekagokatujadofemakemezapakivatodubopozosuwebevejisebexukiginutelakemopumaxiwijigazaxejupazuzupipirijilese&utm_term=how+do+i+love+thee+summary+line+by+line+pdf&jidubexobulawowopotumurujuturimasuv=bademikejogupovalusuzavopuzatebotisuginagobikozidovevijipafimufedumemaribejibunexatezolakoranidodisakozotezefuxidijejobijanulekijobaluxujujobitIn PDF document text
    • https://sunima.gonujovux.com/306467921034459521700248443323917032046075?garogiliresipizavujadedibiditedigijugidinodegegipurazebokumedosonozulijujuviwiwerijopaxotudinumapeva=gagekepuvogapalewotebakuwozoxupadukejosezoxidiwalisazakafiwenutixanepexolafozavuxafutalixowotokomonuzimekagokatujadofemakemezapakivatodubopozosuwebevejisebexukiginutelakemopumaxiwijigazaxejupazuzupipirijilese&utm_term=how+do+i+love+thee+summary+line+by+line+pdf&jidubexobulawowopotumurujuturimasuv�demikejogupovalusuzavopuzatebotisuginagobikozidovevijipafimufedumemaribejibunexatezolakoranidodisakozotezefuxidijejobijanulekijobaluxujujobitIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/iX/1.0/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://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004804d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4804D 7048 bytes
SHA-256: 64aaf9c4c0fe27f3521e874e7e745b67de4689af994a4cfd1960b0ad0c6af971
font_01_sfnt_off000494ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494FF 2952 bytes
SHA-256: 05b1506c36ba0ecf1bc03a92472f92c8550e18bc1dc84f6a5d52d0df06d8b3cf

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