Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea9c6f245dbb8b4…

MALICIOUS

PDF

70.6 KB Created: 2020-12-17 18:39:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6142b2b5f5ad2ba3f6c955b9184ff32a SHA-1: 155e97b5d9c3504dab4034d26f89232969ecff90 SHA-256: 3ea9c6f245dbb8b4379080a3ef6ed65a84fd176d155cbb52039693a6619377dc
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-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://trafftec.ru/123?utm_term=ffx+remaster+walkthrough+jegged PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366014/normal_5f89dcaa1a0e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484375/normal_5fb4d23b3822b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402250/normal_5fce7b2170be5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404313/normal_5f9b4082d45a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373511/normal_5f91708f1702b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460680/normal_5fb2c76833c6b.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://uploads.strikinglycdn.com/files/ed6b6cd4-64e9-4e27-ac6d-7b5f974b0696/gta_san_andreas_hileleri_kpek_hiles.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5dc4e2e34347c70666e67/t/5fc7b5dcc953717e09e2daae/1606923740859/72632624564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf818a5d-470d-445e-b50b-b11a752bd7bc/pafofeliziz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4e3a4e98326c0207023a/1606372922790/jugowet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe162b9b1ed03538a2ba40/1606293035561/11893630873.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/25529170381.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12c5140f1034a5caa9112/t/5fc54ae808845d092438f873/1606765292412/animal_crossing_new_leaf_face_guide_shampoodle.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_off0000cafd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFD 5304 bytes
SHA-256: cd4fd356eea3a94bc74d2a04b9e9e7033af8864a90f46564154bf314b75ea978
font_01_sfnt_off0000dd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD29 10120 bytes
SHA-256: dd4a99ec94e1ac5eb3b885a37393fb4d6968ffb2ac93860faf11c4ec0b94f516
font_02_sfnt_off0000ff86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF86 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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