Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc3a4759d7c45f5…

MALICIOUS

PDF

66.9 KB Created: 2020-12-09 11:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 6f395d378f3141d30af1e420255a3af0 SHA-1: bde9e1873f83ce0a7ab676d1a6d1de40865d8e4c SHA-256: 0cc3a4759d7c45f5c967de3bfc8aeb5bb09c7a0bbe2379988ac3bc7cbf57d9a0
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-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://trafffe.ru/123?utm_term=mystic+messenger+hack+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415546/normal_5fa48018542cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466676/normal_5fc276d89dcad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426549/normal_5fac5c84a61af.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/c04a2f88-af91-4001-9ca4-d97ad9f3124e/massey_ferguson_65_operators_manual_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/14902725841.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1f82067-6467-4730-8aa3-9af6ee26a6e5/relationship_between_photosynthesis_and_cellular_respiration_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/bet365_latest_apk_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/find_xfinity_streaming_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cce3dbc-c8f4-4393-9765-ce4feea0a05e/zurafikafe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9af139ff-fb0b-409f-9f56-4fe9fa51c828/free_online_kingdom_hearts_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99dec63f-0bf6-4b3b-8f99-4de9b1832e4f/solidakip.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/azure_az-_101_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee5e1218-9ebe-4218-a6b1-6e9e90afa1e9/93453344509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d929c5-c7a2-4608-9242-174a87529584/ruponizideguwot.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_off0000cae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE8 5488 bytes
SHA-256: 3abce2cd26da1dedbd7f3cf735cd20129ec50917dd2ad3f0325ee03587f5837f
font_01_sfnt_off0000dd7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7F 9908 bytes
SHA-256: 046f585df3f9e523e27fa190454ba628b6d8940a5cbd6aaad16f1c0875e6c833