Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d1999c14c53be1…

MALICIOUS

PDF

361.6 KB Created: 2021-12-22 07:01:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 86830cdcdd0b0d4d98cdee570c6c18f3 SHA-1: 2e61af0d0db087fd89dcd2824d5e9d16062bc89b SHA-256: c5d1999c14c53be12204bcc04941e89e6bfe3a689339b52b32c07bac7e823703
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7167

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://oniceh.ru/uplcv?utm_term=atmega8+datasheet+atmel PDF link annotation
    • http://cataga.de/beta/files/file/junekogiwazudajogikaferiv.pdfIn PDF document text
    • http://www.deewanalarab.com/up_imgs/jisujematuzu.pdfIn PDF document text
    • http://unseretochter.com/images/file/gavipubaradotoke.pdfIn PDF document text
    • http://tchid.net/userfiles/file/89382461846.pdfIn PDF document text
    • https://ymy-tea.tw/upload/files/bijimonun.pdfIn PDF document text
    • https://dpengineers.info/admin/userfiles/file/53922225601.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/9062a52cdcac5efe577d50ef2df764ed/72340025047.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/33483428813.pdfIn PDF document text
    • http://hanlacsclub.com/ckupload/files/wajovojezuf.pdfIn PDF document text
    • https://ms1oke.com/contents/files/36310823191.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/161973b08d5300---5022696734.pdfIn PDF document text
    • https://alsultantrading.ae/userfiles/files/55882765718.pdfIn PDF document text
    • http://plenaseguroseprevidencia.com/fotosempresa/files/67807573435.pdfIn PDF document text
    • http://horizonpestservices.com/userfile/22996983410.pdfIn PDF document text
    • https://latrinquette.com/upload/editor/file/sakaninofumadogekixijop.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b257b4ef97---luxorom.pdfIn PDF document text
    • http://otestmanager.com/club/data/userfiles/file/20210913182131.pdfIn PDF document text
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161770de45023a---9024061931.pdfIn PDF document text
    • https://zlato-eu.cz/upload/files/xapotajebupekisegofeluju.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/69561241046.pdfIn PDF document text
    • https://bokaichenyu.com/upload/files/pulufofo.pdfIn PDF document text
    • http://marinaxaraes.com.br/ckfinder/userfiles/files/49192027380.pdfIn PDF document text
    • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/nudimemobozubixobubegigu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53211 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000548b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x548B5 10468 bytes
SHA-256: c110de58b10cd1c53f19e88844effcb1724f6b12136d1f7dbe8337addc6795c1
font_02_sfnt_off00056053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56053 20844 bytes
SHA-256: 180e61382ea9f3b0aa9772c6b70844aafbc698cd56f5362dcca93df03cb1695c