Malicious PDF — malware analysis report

Static analysis result for SHA-256 c805e9aba0607dae…

MALICIOUS

PDF

74.1 KB Created: 2020-11-16 12:43:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: fb3c10f25d918206667a1dd70421a77e SHA-1: d35960dfa40b493b7d417a0415c951d19d38e5c2 SHA-256: c805e9aba0607daed6b7fff9065efe7ff4c13a457294f6c042c8bfe0ac685ffa
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://trafffe.ru/strik?utm_term=la+ley+de+la+atraccion+libro+pdf+gra PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425933/normal_5fa1bf0a36559.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381108/normal_5f9391444dde9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366045/normal_5f8cc2b62bff1.pdfIn PDF document text
    • https://fisofomopix.weebly.com/uploads/1/3/4/6/134603918/keritewifi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392195/normal_5fa1c547a836d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/cloudformation_iam_policy_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb23fa86-33ff-4d7e-9460-fc9aadc7d1d0/83803245059.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1662910f-39c4-49e5-a925-fc2251209ad6/removing_roms_from_retropie.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/5870078465.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/sopa_de_letras_en_espanol_para_ninos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0faa28f4-1f9a-4394-90dc-7bc3298736bf/80425030839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4106164-17ba-4f56-9b45-efc0c224ad9f/zamunelozolatusupojuta.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/92277960995.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/scarborough_maine_department_of_public_works.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c19b62d9-fb6f-4ab4-b9cd-1508a1ada0c0/molduras_de_duroport.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/81737905842.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/rumininixusule.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD731 5116 bytes
SHA-256: f3b59bd90c96d139dc3e05b99518314e790b8c161a341127950a839bc78681fd
font_01_sfnt_off0000e8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A9 11212 bytes
SHA-256: cbfa15c441e1cfd6452f3ca0288d70a05c6c6b97af22d3626f836ef4a20d35d0
font_02_sfnt_off00010d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D27 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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