Malicious PDF — malware analysis report

Static analysis result for SHA-256 faed3b5597f5bb86…

MALICIOUS

PDF

68.7 KB Created: 2020-12-15 09:12:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ad430dc5c81375f0dd674c6b8d777d92 SHA-1: 1256bb1e9b8c5ffb0d3cbf4a0438e0258900f270 SHA-256: faed3b5597f5bb86b9b316bd4f86d4cd4917b522bb26c03c47479bf35e08f5b2
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/123?utm_term=is+jcpenney+closing+stores+in+illinois PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kisagoz/rupubibomolesopaguza.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/health_benefits_of_carotenoids.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49d41eae-e6e1-4688-9c44-f34a138e1d9b/algebra_regents_june_2017_answer_key.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37c6992c50b1a1e87d9cd/t/5fc5e0c59b1ed03538a94b4c/1606803654971/m4_field_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/how_to_install_apk_file_in_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/doctor_blake_season_3_episode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/89078022762.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/fevofuv.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/mevarubusizobefe.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/chemistry_ionic_bonding_worksheet_answer_key.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78ab781da8a590db12154/t/5fc8df4a13de6e798165308e/1606999884188/79515691929.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/correct_the_grammatical_errors_worksheets.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b6c78787e8798971b212/t/5fca3dfdcf87d0256ff7e239/1607089663494/ftdi_diet_not_working.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d8d024b06a7eb3fedc56/t/5fc9939087b36f46d4f7bd55/1607046035459/kojokevuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/beyonce_net_worth.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/tadivawez.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_off0000d00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00B 5008 bytes
SHA-256: 6375b2795c53acf27bdb23f3ffa6abf70d0e03abcbc8183e7445707f87ce29e2
font_01_sfnt_off0000e138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE138 10748 bytes
SHA-256: 11846bd09430f9a35aa4841211214a4e55439c430bcacde27a659564e5041364