Malicious PDF — malware analysis report

Static analysis result for SHA-256 f465714e519e32ed…

MALICIOUS

PDF

72.3 KB Created: 2021-02-06 16:21:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: adad5e3c7fa85ffc21004b789608bf29 SHA-1: 1e9352244fa2c4db5e7ba1333db72901a6875ad4 SHA-256: f465714e519e32ed2f0812edb4cc48a2c28fab1939455c238d6194813a57e018
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://seumenha.ru/aws?utm_term=lexical+approach+activities+pdf PDF link annotation
    • https://jesebumu.weebly.com/uploads/1/3/4/6/134617302/jewokerozukof.pdfIn PDF document text
    • https://cdn.sqhk.co/tolebilu/ghPgeii/pixel_gun_3d_mod_apk_developer_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/nugofonavuf/jiRF3d9/44439408391.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/1E5YTjc/77395590229.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403672/normal_5fd177274f4c2.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/6ngiG63/14615826747.pdfIn PDF document text
    • https://wiwofuda.weebly.com/uploads/1/3/2/3/132303082/4960253.pdfIn PDF document text
    • https://cdn.sqhk.co/nadokikado/ifegfO0/30173814311.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/mzCifkv/crypto_companies_going_public.pdfIn PDF document text
    • https://cdn.sqhk.co/bidomutarili/8Gohghj/pemufa.pdfIn PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/cbd8d11ad03be.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/aircraft_maintenance_manual_does_not_include.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/zufexoverodiduxev.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/shazam_encore_apkmos.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/19324021503.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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB29 5312 bytes
SHA-256: 0eb40af029b93a32c1a8e519dba53891d4a7ed6d31cb78a2a2a0715ad8bf28e6
font_01_sfnt_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 11332 bytes
SHA-256: 39ae61b6765939d2bd23bc4c303c07e1d2242688d1d220d5528476490a5d2872

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