Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12692b56e903514…

MALICIOUS

PDF

69.9 KB Created: 2020-12-25 17:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e2905d6c8de195ed0815f5c8973f023b SHA-1: 97aad0c7d924379b1f81c830803b5c11bdd605af SHA-256: c12692b56e903514b80eb8ad2190effcb61c23737f7629c4ba579548b47e2516
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 0.9995

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/strik?utm_term=hidden+bonfire+stories+faceless+gravedigger+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461791/normal_5fa5847a15a5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410727/normal_5fbd47cfada33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5faa460ad30ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386366/normal_5fdc52ea63e66.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/caRqii2/moviepad_watch_movies_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367304/normal_5fb9dd725e98d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f9064bccc61a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/terarozefuligibigowatat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4f113da-3647-401b-a607-a8b4888de369/jukka_nevalainen_drum_cam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e64ebe7d-3efe-4562-85c7-4b0ae71062d5/emojination_2_answers.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_off0000d376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD376 5440 bytes
SHA-256: 898aa507feaccd412fdc7d247e0ba730b89bb920fd1532bee4ba0153cd0bb599
font_01_sfnt_off0000e617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE617 10800 bytes
SHA-256: 4dc617906086d985ba51028ff8e01348e911ffd27558114f399fff618d660932