Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3927881f57171…

MALICIOUS

PDF

91.3 KB Created: 2022-04-07 04:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 60e6942e25c2bc9aefde35b32fafc2c4 SHA-1: ddfe15f8011b7f1b72e4167cc0fdd2cf337e5968 SHA-256: c5d3927881f57171aa3a02374fc530bc8f5e0d4b7a6586d9df13a3310ef8a257
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://yoyep.co.za/YmrXLWy8?keyword=pentax%20k-3%20mark%20iii%20specs PDF link annotation
    • http://lawyergz.net/uploadfile/files/xoxifi.pdfIn PDF document text
    • https://terlickodds.cz/www/www/fckphotos/file/52444680202.pdfIn PDF document text
    • https://pafofenolaf.weebly.com/uploads/1/3/4/6/134668810/7292864.pdfIn PDF document text
    • https://tunoritusaw.weebly.com/uploads/1/3/5/3/135328070/wizatoluja.pdfIn PDF document text
    • https://monotolifevi.weebly.com/uploads/1/3/4/6/134683372/kulejotivor.pdfIn PDF document text
    • http://yeosingol.com/FileData/ckfinder/files/20220212_56B1C920F93CAD23.pdfIn PDF document text
    • https://hanshintour.com/FileData/ckfinder/files/20220326_B1B7BFC6DD8A8530.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/bozekikofewetazur.pdfIn PDF document text
    • http://bom-laminates.com/user_img/files/buwoxiroz.pdfIn PDF document text
    • https://motazejiwe.weebly.com/uploads/1/3/4/2/134266269/mevax.pdfIn PDF document text
    • https://kidogotetivi.weebly.com/uploads/1/3/4/3/134375399/2994141.pdfIn PDF document text
    • https://jonolepazom.weebly.com/uploads/1/3/4/5/134520471/voton-pavivekowere-liminog-losupu.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621a5e5aa4ea5---memabud.pdfIn PDF document text
    • http://amandamaitland.com/images/file/79526780624.pdfIn PDF document text
    • https://senejudav.weebly.com/uploads/1/3/5/3/135348848/b75d2.pdfIn PDF document text
    • https://fobunimo.weebly.com/uploads/1/3/1/4/131407012/wagizomof.pdfIn PDF document text
    • https://e-s-c.fr/lib/ckeditor/kcfinder/upload/files/jofavofosajezub.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/zudoviwukosefujupowas.pdfIn PDF document text
    • https://zuzunavodezap.weebly.com/uploads/1/3/0/7/130776081/ritevuvopupemelusi.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/pazomovutaxivadavukokoxi.pdfIn PDF document text
    • https://rosenstein.lu/userfiles/files/76292561126.pdfIn PDF document text
    • https://nokidekuget.weebly.com/uploads/1/3/4/6/134669445/8799449.pdfIn PDF document text
    • https://nobuzuza.weebly.com/uploads/1/3/4/7/134757083/zobinikosis.pdfIn PDF document text
    • https://detazemunowovi.weebly.com/uploads/1/3/4/7/134704720/ruxisesitirofo-kepomerukugo.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00A 10768 bytes
SHA-256: cf5b969dd549aae63b89f8f828e784a818352544fc4476ee112f40921a1c3ede
font_01_sfnt_off0000f8ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8EF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000110fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110FC 1904 bytes
SHA-256: cc5889050ab801d5d0ccc75fcb1563216f298571c61fee6c2fada09d823563f7
font_03_sfnt_off000119d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119D0 17876 bytes
SHA-256: 6f0e3f2a1ca4bbf088ac7cb2558d9270f2acdf20fea51ca695f0fcc61b9b89fb
font_04_sfnt_off000148e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148E3 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd