Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2c96e09cae17265…

MALICIOUS

PDF

72.2 KB Created: 2020-12-02 16:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2e53e63260db5d0f59f12ffacef9677d SHA-1: 73caa3ba3eb3b055b8e71ab5247929cc88ec1cde SHA-256: a2c96e09cae172657ac3ab412f00a4a13b0939ae6e001bb6e1442eb49ad55b85
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://traffset.ru/123?utm_term=dumplin+libro+pdf PDF link annotation
    • 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://static1.squarespace.com/static/5fc5b109405d5340f34a7138/t/5fc7198e93ad1a481214441d/1606883726537/companion_for_kill_team.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc19a8f40f1034a5caddecf/t/5fc51f99173fb5383b475b04/1606754201361/staples_1099_forms_compatible_with_quickbooks.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc103f2c6d964583622cf33/t/5fc4bfdd9b1ed0353872b2db/1606729693789/coosa_high_school_yearbook.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd13b9eedf074882613e37/1606226874307/28909153127.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc654e0affbf90a660f952b/t/5fc76d11bfb90028be51d820/1606905113301/zudolazonavabazivakuzen.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/salesforce_developer_guide_for_certification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6d3aebe-33c4-4e7c-b725-5bd670120d17/fixupepazujavibu.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/94310963387.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd09f964be903ae6422294/1606224377817/64563104663.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd216a34a09a73faee0f2f/1606230379217/centech_battery_charger_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1175aa879396864096daa/t/5fc3fbca4e98326c028ccb9b/1606679499413/79854352216.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdb415687f52b6b7b2913/t/5fc34e931972c46e3c084f93/1606635156360/frontier_airlines_speak_to_a_person.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/kopufaxupiwavizofosipit.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/91473316973.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2c9392bbd74065812d409/t/5fc3811a3c6ccf69f3cb6c73/1606648091711/pques_2020_qubec.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_off0000d178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD178 4624 bytes
SHA-256: 86cb647d6c670c8e3cc107cf84ba5b9aae16e9a7bca36ffac2573509d0963e56
font_01_sfnt_off0000e0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F7 11368 bytes
SHA-256: 3db2c96062ca8e082675968f7fb41a8babd09b4d02948adee68d4f64db1078ae
font_02_sfnt_off00010652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10652 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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