Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2e5a9c318fdbc9…

MALICIOUS

PDF

70.3 KB Created: 2021-07-23 20:01:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 84354da1e1ae0834bc1a3b7bf2ea6e12 SHA-1: 603f426fdde47af8ffdd0d7bc0a6fc447ab1f77c SHA-256: 6e2e5a9c318fdbc9ea8f5ac1c2159426d8eb5948ab499e82a116abc6bf24a8f8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, many of which point to compromised CMS upload directories or disposable hosting domains. This behavior is characteristic of a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6701

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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
  • 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 http://davidhammerstein.org/ckfinder/userfiles/files/34626656021.pdf In PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a37bf9cbe9---rosatatiresa.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/97809392497.pdfIn PDF document text
    • http://studioagm.it/userfiles/files/82830280551.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ada266d4d4f---togafif.pdfIn PDF document text
    • https://serviceservice.eu/userfiles/file/53379514494.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/cf46bc32a291b5a5366ef76565619c0f/morekabapuzub.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a596ee1fc88---82767947164.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/2fc1667b1c61dda513d2e0a27ba81f75/98728153285.pdfIn PDF document text
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160865ef78ad46---58669654765.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/68089681496.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/f78de12917c222d11a27054d0d1be9ad/13909874673.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7de56d1c---dajod.pdfIn PDF document text
    • http://medi-sen.com/files/files/vepexeninapow.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b54c49e89c---tesozi.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799e76e54f8---78131315839.pdfIn PDF document text
    • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/1eca35f0d02c0cfcf88e8990c762f29a/sozopenojowovipul.pdfIn PDF document text
    • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1ed7ba383---19202018313.pdfIn PDF document text
    • http://hart-metale.pl/gimnazjum/userfiles/file/wilipuvexiruxif.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d14a0b7cc5---59860398880.pdfIn PDF document text
    • https://subarini.ro/mm/file/batovito.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/67458343cacf8b60754d3f8f5e1a98c6/63191642195.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088fd9177a12---kimefebidaji.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+hard+reset+iphone+11+without+volume+buttonPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A8 17540 bytes
SHA-256: 7e2919a1b7e13b1a7ac5e80d9829711b8a94f00170130945c5716c214de32f43

Open this report in the interactive analyzer, or submit your own file for analysis.