Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a16056c68a2f753…

MALICIOUS

PDF

73.8 KB Created: 2022-04-06 22:35:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 4dc75106adbda15d09058a5775ffce32 SHA-1: defe6aee7c2400349c10721283e664a46c9731f3 SHA-256: 5a16056c68a2f7532725609610d830cd2b7e8b85864c6a5e2e27f70e6ca9bd3d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9907

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://fecuq.co.za/YmrXLWy8?keyword=kitchenaid%20kcm1202ob%2012-cup%20glass%20carafe%20coffee%20maker PDF link annotation
    • https://fixiruwu.weebly.com/uploads/1/3/6/0/136082318/0ee7e1.pdfIn PDF document text
    • https://vepezoroz.weebly.com/uploads/1/3/4/6/134605761/837343.pdfIn PDF document text
    • https://linulozaf.weebly.com/uploads/1/3/1/4/131437298/kulugowulevipe.pdfIn PDF document text
    • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/gibozubot.pdfIn PDF document text
    • http://signexpowholesale.com/project-new/christianbook/upload_images/file/92566053779.pdfIn PDF document text
    • https://jetaime-shop.dvsportbg.com/files/xokileduxezoviwuk.pdfIn PDF document text
    • https://zepekofudi.weebly.com/uploads/1/3/1/4/131407423/2617790.pdfIn PDF document text
    • http://iuppitergroup.it/kcfinder/upload/files/giginopozawalojomarave.pdfIn PDF document text
    • https://malashealthcare.com/userfiles/files/33441047247.pdfIn PDF document text
    • http://markasib.ru/ckfinder/userfiles/files/10023353934.pdfIn PDF document text
    • https://kimansion.com/uploads/file/rubenuditet.pdfIn PDF document text
    • http://zdk-engels.ru/upload2/files/38998157749.pdfIn PDF document text
    • http://radio-salsa.com/php/rs/filesupload/file/mukudopogipugesuji.pdfIn PDF document text
    • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/28168750663.pdfIn PDF document text
    • https://sowameneritela.weebly.com/uploads/1/3/0/7/130775755/wixusi.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/zivawawudujeji.pdfIn PDF document text
    • https://lojizeli.weebly.com/uploads/1/3/3/9/133997115/siradalib-ruviwefeva-gerolixidugu.pdfIn PDF document text
    • https://jukosixosibi.weebly.com/uploads/1/3/1/8/131871462/5776f8d4decc344.pdfIn PDF document text
    • http://www.masozilina.sk/ckfinder/userfiles/files/56410286937.pdfIn PDF document text
    • http://sunway.me/uploads/file/020612412244.pdfIn PDF document text
    • https://cserepakciok.hu/xdata/file/5621112104.pdfIn PDF document text
    • http://fecoil.com/userfiles/file/29104714941.pdfIn PDF document text
    • https://yellowmangocafe.com/userfiles/file/lizonetim.pdfIn PDF document text
    • https://kezarixanutoge.weebly.com/uploads/1/3/4/3/134372428/zivibanabef.pdfIn PDF document text
    • http://bifruit.mk/ckfinder/userfiles/files/ravupinezaxuzon.pdfIn PDF document text
    • https://dijibuxanizaxi.weebly.com/uploads/1/3/4/8/134859775/2c1967474f8f77.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/maxopupelozesulod.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_off0000b4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4E5 11720 bytes
SHA-256: 6cdc3e519f8ff256670007222fd84e8336698f5257773512428d0d51ffbfa572
font_01_sfnt_off0000d04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD04F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE861 17644 bytes
SHA-256: 66bd74836bbd57371481e2213e1b5126de1865dc0515a903aa6e0980d9205633