Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fb9fdb5cfbed42…

MALICIOUS

PDF

63.4 KB Created: 2020-12-03 12:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 966d13d92d555a70a48d3b9f0687cf34 SHA-1: 60a9254f746dbdf7dc38c7473fcbf97dbab602a3 SHA-256: 60fb9fdb5cfbed4259ab2951ad573c0fcb8bcdf2e92e6f30b4026f04ef539389
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 0.9997

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
  • 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://traffset.ru/123?utm_term=brochschmit+and+associates PDF link annotation
    • https://kavosimodo.weebly.com/uploads/1/3/4/9/134901779/501ff6a5465bb85.pdfIn PDF document text
    • https://nasotatuji.weebly.com/uploads/1/3/4/3/134392375/xekenibakaxuf-jafepeke.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/fukezavazuj/17701957381.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae2302d9-8448-499f-9e50-1eac2702d4e0/jixizegodokixufutazufu.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/dafowiralut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb340eb0-850f-4cfa-a6e0-a1ac221cde87/watch_the_lion_king_2019_full_movie_gomovies.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/41688510965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/970c3470-0664-43b8-8cfd-fd311636dec4/t_and_s_brass_faucet_parts.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5184e1c8c7413144d0b9f/t/5fc801e0c921037e56a57cb4/1606943201122/planetary_defense_force_star_wars.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/generatepress_wordpress_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df18aa28-4a14-4009-b58b-856942448671/63928452803.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4fef36609fd0ee7abbd1d/t/5fc5389361e25426e1e15ae8/1606760595439/vault_premium_apk_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10866e5c7695ca99c5cd3/t/5fc692819b1ed03538c37f2d/1606849154030/81620915140.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB899 5196 bytes
SHA-256: 74e277ed63def8a2b3328facbe8afe748713354a5f1fced2f315bbc263b59db5
font_01_sfnt_off0000ca15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA15 11096 bytes
SHA-256: 1cbd5f008a77f9c27cfb6a4af924b03d454da7693fbddb65747dbb7d169be6e2

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