Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eeb55c8f07cfc54…

MALICIOUS

PDF

68.1 KB Created: 2020-12-06 21:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ca19f9b731a0fff18182b1286f7b6f4a SHA-1: bae16dad5c776cda8162a1098029274a3473d87b SHA-256: 3eeb55c8f07cfc54fb227a188173a3bc3f4ddc396e94a97bf801fa7a34b854b7
96 Risk Score

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://trafffe.ru/strik?utm_term=chick+fil+a+employment+policies PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/897340a2-5da0-44da-8774-fcce2c6a354e/marketing_an_introduction_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28728629-f4cf-4145-9048-4b9e6a655f14/mtg_white_deck_tips.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c3d560f2895dc1e72903/t/5fc7b612c7c45a5eafb09d4b/1606923794359/photo_collage_canvas_prints_australia.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc174e7bf71053ccb141a2b/t/5fc40a013c6ccf69f3dcdb2f/1606683138244/city_of_fort_lauderdale_boil_water_order.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b24012facd59ceb28ac7/t/5fc5054608845d0924281d6b/1606747465560/cfa_level_1_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35dd5cfe-587c-4e1f-a65a-b74e191cdb72/45274836606.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/zabotozufalogesob.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/couchdb_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/jee_b_arch_sample_paper_with_solutions.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d9d540f1034a5ca886a6/t/5fc5acab9b1ed03538a1376f/1606790315957/89867369138.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf254eaf37e3b646102cd/1606283860695/finite_element_circus_virginia_tech.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_off0000cccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCC 5228 bytes
SHA-256: 7f853b4f89c7ebe3917e0013c3929bc77dace1cd3a467154e919a63430b9fe82
font_01_sfnt_off0000de7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7F 10984 bytes
SHA-256: 878a8b60eb805d93bba7fcdf1cd0625541650d616b236dba5d76c0d4e6c9a96f