Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3211f71f2dc7cb…

MALICIOUS

PDF

60.5 KB Created: 2020-12-03 17:59:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5f001dd8178cdd15d3de4bc11ed2a413 SHA-1: 152bbc7c87946abc068314f3f689ec312469946c SHA-256: 7e3211f71f2dc7cbd727e545a280b696a24fdff1f4730cc63c2d748411b3bb09
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=the+fields+of+athenry+lyrics+dubliners In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385613/normal_5fac5a1b4240b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488316/normal_5fadaab1358a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f89d87a97802.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375095/normal_5f915db16f822.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462345/normal_5fa4326a6a62e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449392/normal_5fb2b441c5f6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376606/normal_5f8c5895d616d.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/xokebore/34471629002.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a2142c3-5d5a-40b1-83c3-85fbf864c43f/bulozokogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74ae41d7-533f-4e63-84d4-35a85f18c5e7/28851939185.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/basic_life_support_exam_a_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jaburirarov/jasperactive_lesson_8_quiz_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6df2b8e0-4949-49ea-81e3-5617777ca768/reglage_pompe_a_chaleur_daikin_altherma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55cc0977-2f40-42a9-a1c5-4c4bf4605345/psp_naruto_shippuden_ultimate_ninja_storm.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_off0000b1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C9 5300 bytes
SHA-256: 9438234ee7253bbbc8092863136339821791b636ff6f48cb076e8360ca39746f
font_01_sfnt_off0000c3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3CE 9812 bytes
SHA-256: 569d37dabbc93bc9e7fbc6224b55754df99ded18e4ef02ea3ea5f01ec49250a4

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