Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7093b1d99c8ff57…

MALICIOUS

PDF

71.5 KB Created: 2020-12-06 16:26:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 50fa18db3d14931cb1ff296023bdb978 SHA-1: 149bc9ff8aa8040aa67c322a4d52ddab7c68d629 SHA-256: d7093b1d99c8ff5783236cbf082ee3dbb745db9c2ea6c25f1144586704e57a07
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://traffking.ru/123?utm_term=beth+thomas+child+of+rage+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4414494/normal_5fc9299a2da65.pdfIn PDF document text
    • https://neriborotarisim.weebly.com/uploads/1/3/4/3/134345051/7605231.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_5f987b184caa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_5fbced997d76c.pdfIn PDF document text
    • https://pavedivagew.weebly.com/uploads/1/3/4/4/134468388/rawapepujabane_robodebozudoxev_nedarovebesu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453103/normal_5faa2db98806e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389095/normal_5f9616061d170.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc1a7ea16f6d44b07c4161b/t/5fc740026beae4543162a244/1606893570798/norawesabopegilikotid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95c6e5f6-4bfe-4c31-a219-2f6d42656e1c/nagumilikojutaropebev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50140321-7e63-4a66-9e7a-62ff9ca9c4f7/66328876018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de29aaa9-7bf4-4bc3-9826-5d5dc8209f8a/zagaxibekip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/758d656f-cda4-41eb-bdde-5a392f8c8cd6/how_to_sell_a_puppy_fast.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2bc6ebf71053ccb1bf174/t/5fcc8e227ae85b53b28c158f/1607241251440/tebamopiwofiboj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3727319-03df-49dc-8307-8d46b769036c/jack_and_the_beanstalk_summary.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_off0000db07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB07 5760 bytes
SHA-256: 6b09555c05bb35e0bdd22a6aec9ce500a940459f402828e61ec1e8b30739352e
font_01_sfnt_off0000ee75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE75 10272 bytes
SHA-256: 4e7f9099ff35506ca3a9ebda1049825937dbacd95c47a07585c514e993834b29

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