Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cb787cda5aabd8…

MALICIOUS

PDF

435.0 KB Created: 2022-03-16 23:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: af2ffce51ae24629509109124a9e2d3c SHA-1: 714d5e2daa1bcce71be77b4349ad5f4169d2a8e9 SHA-256: a9cb787cda5aabd8fb8fe6e520458096ee65a273845ad3112309d58de662c5ce
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3414

Heuristics 5

  • 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.
  • 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://darangyi.com/userData/board/file/najarilodosigewosemokuj.pdf In PDF document text
    • https://spacio.hk/attachment/file/62082718997.pdfIn PDF document text
    • http://vmkmsz.hu/userfiles/file/sumigadoxafuvazemi.pdfIn PDF document text
    • https://haysalon.com/public_html/userfiles/file/19597720250.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/nuxogipufigulawupeviv.pdfIn PDF document text
    • https://otterdisplay.com/userfiles/file/dalewumafikoxudumik.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/162131cc3172ba---6718156633.pdfIn PDF document text
    • http://www.juthamasclinic.com/upload/finder/files/32463323536.pdfIn PDF document text
    • https://hatarozatok.martonvasar.hu/ckeditor/kcfinder/upload/files/40741337892.pdfIn PDF document text
    • https://506hlapeta.com/files/file/1530738829.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/98653934275.pdfIn PDF document text
    • http://cqqwjt.com/file/upload/files/03-13-05-14-34-37.pdfIn PDF document text
    • http://deauville.ru/files/file/vuduf.pdfIn PDF document text
    • https://oldalunk.hu/userimages/files/fuvikigiwivevudofo.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/pulam.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/1889953072.pdfIn PDF document text
    • https://guclupin.com/calisma2/files/uploads/dutezuzibozazagabofutizob.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/vufozidajajakanatexebun.pdfIn PDF document text
    • https://ww150007.linebot.net/upfile/files/20220307185550.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/69028720545.pdfIn PDF document text
    • http://greeninfrabd.com/assets/ckeditor/kcfinder/upload/files/80665872659.pdfIn PDF document text
    • https://asid.rw/userfiles/file/zelasirikukaliwotufawa.pdfIn PDF document text
    • https://alsultantrading.ae/userfiles/files/3016261657.pdfIn PDF document text
    • http://schule.havonix.com/ckfinder/userfiles/files/xokifatagok.pdfIn PDF document text
    • http://avanti-kuhni.ru/upload/files/fepunupepep.pdfIn PDF document text
    • http://chiangmai-esc.net/user_img/files/zavozaliximit.pdfIn PDF document text
    • http://wooshin.kr/uploaded/file/1051272096621d997575c36.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2022022218514973499.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=auto+voice+call+recorder+for+androidPDF 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 extracted file (font_00_sfnt_off00064307.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00064307.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00064307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64307 18912 bytes
SHA-256: 6ad2e8f4834e47157e2251f63745823b3e7deeb94f9b8835d554a2bfaae7385d
font_01_sfnt_off00067502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67502 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off00068b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B05 10448 bytes
SHA-256: 7e2734e2589a8d4bb1754a4e3fc1569b907bbe027bf0c9f9e11fb354392470e3
font_03_sfnt_off0006a2db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2DB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9