Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee6808c8377dc1c…

MALICIOUS

PDF

90.9 KB Created: 2021-01-21 05:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8bc9e55ffd00b6ddbb90054c4a37ad62 SHA-1: 9d2f60924a3e64eabc73eac32278921581c35065 SHA-256: 4ee6808c8377dc1cc5173c4b5a2043ecb15e97c9eaf6bf76022358a467c891e6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as concert information. ClamAV and an ML classifier flagged this PDF as malicious, indicating a phishing or trojan distribution attempt. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=the+regent+los+angeles+concerts PDF link annotation
    • https://cdn.sqhk.co/jawutuwek/hhzheh1/73876037789.pdfIn PDF document text
    • https://site-1173682.mozfiles.com/files/1173682/8527350379.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5fa6e0160962c.pdfIn PDF document text
    • https://site-1177757.mozfiles.com/files/1177757/barbie_doll_house_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374369/normal_600105d0826c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366364/normal_5fb624ece37ff.pdfIn PDF document text
    • https://site-1252896.mozfiles.com/files/1252896/cover_letter_format_template.pdfIn PDF document text
    • https://site-1240204.mozfiles.com/files/1240204/beluvuzemepavepexufas.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/g75RUhg/73541353031.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/bizamesuwepe/progressive_die_design_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/shed_blueprints.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/arcee_transformers_cartoon.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/manevomivuropozidedepafo.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/acme_adjustable_dress_form_size_b.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/49265931158.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/flight_pilot_simulator_3d_hack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/17128696591.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/reported_lung_cancer_from_juul.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/adobe_character_animator_mac.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 6

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_off00012509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12509 5008 bytes
SHA-256: 875314fcbcb3d44c77a1e679723249d687d85fe7406bb02ca2905e861d86ff99
font_01_sfnt_off0001360e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1360E 11340 bytes
SHA-256: 08fb5d3328fe24ed582f37f2949b06a3b894ea34e6b691f8f5c4178a898d8d9c

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