Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd769a46d9c02f0b…

MALICIOUS

PDF

69.7 KB Created: 2021-09-29 03:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 54fb128de401e67c00b3dc392be5030e SHA-1: feaa54294d6767035e5a59df32796480ccd89fc1 SHA-256: cd769a46d9c02f0bde2d71583d5d5a1e68e81768ef4ea38ce49749e2cf122b16
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 5

  • 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.
  • 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.
  • 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://sellmysayarah.com/userfiles/files/69055266561.pdf In PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4d09b9dff---sonivalunumamufomovudob.pdfIn PDF document text
    • http://tongrentangthai.com/UserFiles/file/26887812775.pdfIn PDF document text
    • https://bibliotheque-des-arts.com/ckfinder/userfiles/files/piboninuzopinolunijinipup.pdfIn PDF document text
    • http://sakra.sk/storage/file/30812595435.pdfIn PDF document text
    • http://codienlanhtrangia.com/Images_upload/files/1048167675.pdfIn PDF document text
    • http://ljjxmining.com/uploadfile/file///2021091609324598.pdfIn PDF document text
    • http://liveranigioielli.it/userfiles/files/dedenajokuva.pdfIn PDF document text
    • http://www.macrolepidoptera.hu/userfiles/files/2772622492.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/24561503993.pdfIn PDF document text
    • https://bayihoki99.com/contents/files/20435350751.pdfIn PDF document text
    • http://mrcookie.tw/upload/editor/file/191537334945.pdfIn PDF document text
    • https://livstyle.ro/home/livstyle/public_html/uploads/files/24012655993.pdfIn PDF document text
    • http://aal.tw/uploads/htmlupload/files/tikuj.pdfIn PDF document text
    • http://zenkatsu.dk/files/wuzomenebipatuwoni.pdfIn PDF document text
    • https://drnanemilk.com/tctt/sites/aaa/file/govikoxijamikekajeledub.pdfIn PDF document text
    • http://aasghsflqsae.handylover.com/upload/files/negenobuzu.pdfIn PDF document text
    • http://freewest.at/kewuxivuze.pdfIn PDF document text
    • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/2e5c01a3dc2be57114e178fd0c141045/15570706644.pdfIn PDF document text
    • http://mq-water.net/upload/tifoxenonokeme.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/9f0db28f16d7cc25c155b6d699db8072/gumufojofajotaru.pdfIn PDF document text
    • http://anthonyvienna.com/sites/default/files/file/bajedobilipiso.pdfIn PDF document text
    • http://wccflooring.com/userfiles/files/7130874655.pdfIn PDF document text
    • http://wxmx.cn/upload/ckimg/files/202109130709483161.pdfIn PDF document text
    • https://simbhaolipower.com/images/file/12981883968.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=reverse+engineering+unity+apkPDF link annotation
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB35C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cb6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB6E 14600 bytes
SHA-256: e0b660daa8f66482ec1985b84a0bffd461437dc0665afac84774efa2402555ac
font_02_sfnt_off0000f010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF010 10680 bytes
SHA-256: 0aaa58a2e16301728ef35fbf4dbe695a4aa9a83a5ccd5febb2fe9d6148b88fc5