Malicious PDF — malware analysis report

Static analysis result for SHA-256 3098e6a3bc24692a…

MALICIOUS

PDF

70.2 KB Created: 2020-12-05 00:38:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9f638f2e0841d278d59f3e6fd2d61cd4 SHA-1: 2a3572017e5ba89d35295d7e89e38794de4902aa SHA-256: 3098e6a3bc24692a97067b789c08baf99d313fee8362d3f5752ad84002a77602
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 0.9997

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://traffnew.ru/123?utm_term=tomb+raider+1+apk+free+download+for+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421966/normal_5fb4114267f7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379362/normal_5fc59581c0096.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383692/normal_5fbbd961b5e53.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0de40085-1fb3-48b5-8a77-3f87e341a4a5/34343653153.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffe9d5687f52b6b7c161f/t/5fc1550c61e25426e169e570/1606505741130/dead_by_daylight_dwight_fairfield_build.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc55844be9b693951286750/t/5fcab9be3c05e2067b4d388d/1607121345213/89743690830.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/figedixekerikujimul.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/83133800095.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1cdd0ec917750a3de3367/t/5fc5f8f3fa04221c71edd65f/1606809844151/principles_of_language_learning_and_teaching_6th_edition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc566b4403f5353fdb3bede/t/5fc6c5beb2fa4660c8be3fb1/1606862271306/tom_and_jerry_car_race_movie.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d67b8ef7301f8b106140/t/5fc229c518e72e5fdb20a3f6/1606560199067/gizagok.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_off0000c623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC623 5304 bytes
SHA-256: 02f1e8a05e547e618232f02f7d2ef71d0ec89e2aae62729f3ceef54e886ce9a9
font_01_sfnt_off0000d82f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82F 16244 bytes
SHA-256: e6d82347335f33c9deefd768a230817afd51da56541eae3eeefe721238614bef