Malicious PDF — malware analysis report

Static analysis result for SHA-256 46de47ee60f4374a…

MALICIOUS

PDF

65.9 KB Created: 2020-12-17 13:56:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 2b2e95002120ec1e4d652a3ddc0fb1f8 SHA-1: d2f345992c15b3f6214362fea8f6db34fa2ca376 SHA-256: 46de47ee60f4374a1a490a0440a56180e002f90653cba513a7703a2ec1df307c
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM'. The primary external URL observed is 'https://trafftec.ru/strik?utm_term=terre+haute+newspaper', which is likely part of a malicious campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/strik?utm_term=terre+haute+newspaper PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389816/normal_5fa1fe79cee32.pdfIn PDF document text
    • https://baxelawinojiw.weebly.com/uploads/1/3/4/3/134333718/2440971.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369161/normal_5faad125ad897.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370265/normal_5fb2902c12504.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c24b76eb-5cf5-4b06-949f-1296e2735469/5753280694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d21e3e8b-888e-41ff-8a62-3523d5bc5cd7/whirlpool_microwave_wmh31017fs_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/silver_nitrate_and_copper_lab_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b710107-cc9f-4e3e-b4f1-40a41d1169c6/whites_spectrum_xlt_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc16072e9fc3622d52570ce/t/5fc35f0d4e98326c027c1518/1606639388851/89580379188.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d0d9e5c7695ca9a82108/t/5fc51f6bfa04221c71c39386/1606754155896/38838130638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8370be06-b36f-49a5-80a9-80c6d26a794c/47549464954.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d9ef465-991b-4732-b3c6-5fa1b8abf228/igloo_cooler_bag_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17ed8bf9-eca4-4b04-b331-3918c65a8ae3/kusufifefirezumirebo.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_off0000c6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D0 4916 bytes
SHA-256: b046e3d2f06bc4555877035c30495263bdecfb9ba0afaf3bc699f3af605f2be2
font_01_sfnt_off0000d796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD796 10540 bytes
SHA-256: 5e282deefd81a57d03b797e3392b1a91d43123cc779cdeaaf05f0b3cda0b42da

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