Malicious PDF — malware analysis report

Static analysis result for SHA-256 445958e403086840…

MALICIOUS

PDF

75.8 KB Created: 2022-04-07 19:46:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 2a72c899484f79b4e76329b92c9b00fa SHA-1: 090d61bdcc02d23600426553644a01978986d7aa SHA-256: 445958e403086840ab2687f3208241ab77cf46dbef28e8928385033372076584
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external links, indicating it's likely part of a link farm designed to redirect users to malicious sites. The primary attack pattern involves leveraging these links for phishing or malware distribution, consistent with a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://colod.co.za/YmrXLWy8?keyword=are%20delta%20and%20moen%20faucets%20interchangeable PDF link annotation
    • https://pekosorevonoxa.weebly.com/uploads/1/3/0/7/130739373/5490b78562.pdfIn PDF document text
    • http://greensketch.in/userfiles/file/41451671206.pdfIn PDF document text
    • https://gegizadewer.weebly.com/uploads/1/3/1/4/131482997/e4d00955967f.pdfIn PDF document text
    • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/sugevuvojedolivosetex.pdfIn PDF document text
    • http://dalieuht.com/app/webroot/uploads/files/71422962486.pdfIn PDF document text
    • https://kifezitiwiwafu.weebly.com/uploads/1/3/5/4/135400929/6943601.pdfIn PDF document text
    • https://vekukedabil.weebly.com/uploads/1/3/4/7/134710008/xizupokari_kusivijolegiba_xuponekan.pdfIn PDF document text
    • https://mizovitima.weebly.com/uploads/1/3/4/2/134266674/pefabukisizon.pdfIn PDF document text
    • http://sperrincaravans.com/images/file/vufalivadobezonafarezeka.pdfIn PDF document text
    • https://ligorubaliro.weebly.com/uploads/1/4/1/2/141280572/9125355.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/n0kjuqu6fk3c4vetfatl5atng08gj0qf/bexipovulilitekefen.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/8041227729.pdfIn PDF document text
    • http://budaikepkeret.hu/uploads/file/fuweduzoxonunovonu.pdfIn PDF document text
    • https://sorolaxubamabu.weebly.com/uploads/1/3/0/7/130739744/lanelapa.pdfIn PDF document text
    • https://expomediainc.com/upload/file/xugojikuj.pdfIn PDF document text
    • https://wabomojufodeze.weebly.com/uploads/1/3/3/9/133999178/3563032.pdfIn PDF document text
    • https://vurifupilubat.weebly.com/uploads/1/3/4/4/134495287/jonubezajatitonoxe.pdfIn PDF document text
    • https://batezumepew.weebly.com/uploads/1/3/4/4/134479003/b0b14b9f9.pdfIn PDF document text
    • https://vanibupawu.weebly.com/uploads/1/3/5/3/135345935/wotepunaladip.pdfIn PDF document text
    • http://brixtontaxi.com/survey/userfiles/files/3290834380.pdfIn PDF document text
    • https://ginufadep.weebly.com/uploads/1/3/4/6/134668932/duluwatagul-vaxopilutowena-pidijimo.pdfIn PDF document text
    • https://guvebado.weebly.com/uploads/1/3/4/6/134659777/mipiturarot.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_off0000c3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AB 11144 bytes
SHA-256: ca474d7dc774f7aa69da241b778c37d1c964e3e922b4dacb558747f486248964
font_01_sfnt_off0000dd48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD48 16908 bytes
SHA-256: cdcfc08f0d85c7e6a42a9a5071760aa085eb14f6c5f462ac7c2c9b4d625bfd6e
font_02_sfnt_off00010944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10944 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1