Malicious PDF — malware analysis report

Static analysis result for SHA-256 e060ebf92af1fcad…

MALICIOUS

PDF

79.5 KB Created: 2021-06-24 05:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 68b1e3516d92a9bc209ee97b9b3426ce SHA-1: 15e3079ce91420787262b9dd5b588c694f4a33d2 SHA-256: e060ebf92af1fcad412bd14fc9ba8b9bdc0c65a3a9b1b1053fb60fab127fa192
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF contains numerous links pointing to compromised WordPress upload directories, indicating a link farm designed to redirect users. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the structure suggests it may exploit PDF vulnerabilities or rely on embedded JavaScript to facilitate redirection to these potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6747

Heuristics 4

  • 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 https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee2eb0fea6---87179782051.pdf In PDF document text
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/r5ha4l5j4sbd01qn9p5c4orul6/20175414518.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb386b5cf9---84697361504.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079039e160b3---72957030672.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c94fcc66200---fifikefepufupifafegaz.pdfIn PDF document text
    • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc1b63b464---74610627988.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b083e54aa47---ritonomem.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/r14maf19977ogr8gm0b3lootl5/15659727779.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606e44ea9b258---53426729523.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d17a56d9c4---67597677991.pdfIn PDF document text
    • http://kaitosushisb.com/uploads/files/nulogojiseraki.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/p1hd9psnh19bthndghbo3gfnbe/82996380746.pdfIn PDF document text
    • http://polletnv.be/uploads/files/5051382049.pdfIn PDF document text
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a396ea1ea74---bedifon.pdfIn PDF document text
    • http://tcsm62.org/uploads/news/file/37894331399.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160887d280d767---46284674861.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=wolf+totem+book+pdfPDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE80 18828 bytes
SHA-256: ae49465c56f8ae6b87415d88ded47ef4fd0545c8cd588d6ca8c9d1213ab48550
font_01_sfnt_off00012a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4B 4920 bytes
SHA-256: 75f861327beb339c3dd29ae86f76a84f9afc3d431595b9deea94ac9d3bd65dde

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