Malicious PDF — malware analysis report

Static analysis result for SHA-256 4454fcd3b2a052c3…

MALICIOUS

PDF

76.6 KB Created: 2022-04-10 01:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: ee92d189bad3065adcd905d6c88e5735 SHA-1: 834a4b8926d47f4a160ff2725e0d80c9f8c72068 SHA-256: 4454fcd3b2a052c3677a9de8218a2362eefdfada89a259835b33c5d0cd6032ee
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many pointing to disposable domains and Weebly-hosted PDFs. This behaviour is indicative of a link farm, potentially used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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=what%20is%20the%20basic%20goal%20of%20existential%20psychotherapy PDF link annotation
    • https://rosififobagas.weebly.com/uploads/1/3/1/1/131164218/4091448.pdfIn PDF document text
    • https://kiwosadil.weebly.com/uploads/1/3/5/3/135384828/3540cd917ce2b27.pdfIn PDF document text
    • https://jazasamiwuri.weebly.com/uploads/1/3/4/8/134889091/japorupubizoz.pdfIn PDF document text
    • https://feposogasutam.weebly.com/uploads/1/3/1/3/131384530/roderegajabake.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/155962.pdfIn PDF document text
    • https://gilaxisob.weebly.com/uploads/1/3/1/4/131406303/pawiva-tipejemu.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624bf7f125395---gewagofejigovovupisenuzim.pdfIn PDF document text
    • https://muxetomanudone.weebly.com/uploads/1/3/1/4/131406273/jujedatineko-wuvale-sewofonolixaxe.pdfIn PDF document text
    • https://jepunitapo.weebly.com/uploads/1/3/1/0/131070437/5217844.pdfIn PDF document text
    • https://golajowedobaxa.weebly.com/uploads/1/3/4/3/134308052/3659229.pdfIn PDF document text
    • http://duplisite.com/userfiles/file/58555908833.pdfIn PDF document text
    • https://pitamiled.weebly.com/uploads/1/3/4/0/134098016/2205961.pdfIn PDF document text
    • https://fugopezawisobib.weebly.com/uploads/1/3/1/3/131383650/gutorape-zoxafisupur-ginegofomijoje.pdfIn PDF document text
    • https://litisowof.weebly.com/uploads/1/3/4/6/134692954/768216.pdfIn PDF document text
    • https://biwusime.weebly.com/uploads/1/4/1/2/141219861/tasave.pdfIn PDF document text
    • https://jizetexosobuwek.weebly.com/uploads/1/3/0/7/130740437/gosir.pdfIn PDF document text
    • https://mubikobilowopo.weebly.com/uploads/1/3/0/9/130969089/lamosofesifa_towux_rowapema.pdfIn PDF document text
    • https://rutedidatares.weebly.com/uploads/1/3/4/4/134490949/2419089.pdfIn PDF document text
    • https://ralikinu.weebly.com/uploads/1/3/4/8/134883141/pakoxedodoradav.pdfIn PDF document text
    • https://retinagarar.weebly.com/uploads/1/3/4/3/134319249/db69c5fb7203.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1621ab4bd6611f---34799836144.pdfIn PDF document text
    • https://xeluluferira.weebly.com/uploads/1/3/4/2/134266649/vofipisut.pdfIn PDF document text
    • https://vitebikune.weebly.com/uploads/1/3/4/8/134895950/sipewipot.pdfIn PDF document text
    • https://tufobedix.weebly.com/uploads/1/3/4/4/134431979/d763c9.pdfIn PDF document text
    • https://pabenegoje.weebly.com/uploads/1/3/4/3/134348732/801496.pdfIn PDF document text
    • https://bawoxuvebi.weebly.com/uploads/1/3/4/8/134886771/6766efa650ff0e8.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_off0000c672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC672 11108 bytes
SHA-256: eba8b46010eebd2fe6579fed29a769ebf0bb1dea9aa3f3eb9fb27bf27ea08602
font_01_sfnt_off0000e021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE021 16820 bytes
SHA-256: b452248d324298efb644f58041e3c004c1bae31f1efe9fe637ac7014765e8100
font_02_sfnt_off00010c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C06 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1